CA2596566A1 - Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor - Google Patents
Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor Download PDFInfo
- Publication number
- CA2596566A1 CA2596566A1 CA002596566A CA2596566A CA2596566A1 CA 2596566 A1 CA2596566 A1 CA 2596566A1 CA 002596566 A CA002596566 A CA 002596566A CA 2596566 A CA2596566 A CA 2596566A CA 2596566 A1 CA2596566 A1 CA 2596566A1
- Authority
- CA
- Canada
- Prior art keywords
- water
- steam generator
- temperature
- steam
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 247
- 239000004744 fabric Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 33
- 230000001174 ascending effect Effects 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 5
- 238000005406 washing Methods 0.000 description 54
- 239000007788 liquid Substances 0.000 description 30
- 239000012530 fluid Substances 0.000 description 12
- 239000003599 detergent Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000008400 supply water Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 230000024042 response to gravity Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004326 stimulated echo acquisition mode for imaging Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- D06F39/40—
Abstract
A fabric treatment appliance comprises a steam generator having a chamber configured to hold water; a supply conduit configured to transport water to the steam generator chamber; a temperature sensor configured to sense a temperature representative of the steam generator chamber at a predetermined water level in the steam generator chamber; and a controller coupled to the temperature sensor and configured to control flow of water through the supply conduit based on the sensed temperature to control the level of water in the steam generator chamber. The disclosure provides methods of water supply control that can employ the temperature sensor.
Description
WATER SUPPLY CONTROL FOR A STEAM GENERATOR OF A FABRIC
TREATMENT APPLIANCE USING A TEMPERATURE SENSOR
BACKGROUND OF THE INVENTION
Field of the Invention The invention relates to methods and structures for controlling supply of water to a steam generator of a fabric treatment appliance.
Description of the Related Art Some fabric treatment appliances, such as a washing machine, a clothes dryer, and a fabric refreshing or revitalizing machine, utilize steam generators for various reasons.
The steam from the steam generator can be used to, for example, heat water, heat a load of fabric items and any water absorbed by the fabric items, dewrinkle fabric items, remove odors from fabric items, etc.
Typically, the steam generator receives water from a household water supply.
It is important that the steam generator has a sufficient amount of water to achieve a desired steam generation rate and to prevent damage to the steam generator. Prior art fabric appliances incorporate pressure sensors and electrical conduction sensors in the steam generator to determine the level of water in the steam generator. Based on the output of the sensor, water can be supplied to the steam generator to maintain a desired water level.
While these pressure and electrical conduction sensors provide a couple ways of controlling the supply of water to the steam generator, other possibly more economical, reliable, and elegant methods and structures for controlling the water supply to a steam generator of a fabric treatment appliance are desirable.
SUMMARY OF THE INVENTION
A fabric treatment appliance according to one embodiment of the invention comprises at least one of a tub and drum defining a fabric treatment chamber;
a steam generator configured to supply steam to the fabric treatment chamber and comprising a chamber configured to hold water; a supply conduit configured to transport water to the steam generator chamber; a temperature sensor configured to sense a temperature representative of the steam generator chamber at a predetermined water level in the steam generator chamber; and a controller coupled to the temperature sensor and configured to control flow of water through the supply conduit based on the sensed temperature to control the level of water in the steam generator chamber.
The fabric treatment appliance can further comprise a valve fluidly coupled to the supply conduit to control the flow of water through the supply conduit. The controller can be coupled to the valve to control operation of the valve based on the sensed temperature.
The temperature sensor can be located on the steam generator at a position corresponding to the predetermined water level.
The temperature sensor can sense a temperature of the steam generator chamber.
The steam generator can further comprise a housing that defines the chamber, and the temperature sensor can sense a temperature of the housing.
The predetermined water level can be a minimum water level in the chamber.
The steam generator can be an in-line steam generator. The steam generator can comprise an outlet portion, and the predetermined water level can be located at the outlet portion. The steam generator outlet portion can comprise an ascending conduit.
A method according to one embodiment of the invention of operating a fabric treatment appliance comprising a fabric treatment chamber and a steam generator for supplying steam to the fabric treatment chamber and having a housing defining a chamber configured to hold water comprises determining a temperature representative of the steam generator chamber corresponding to a predetermined water level in the steam generator chamber; supplying water to the steam generator based on the determined temperature;
and generating steam in the steam generator from the supplied water.
The determining of the temperature can comprise determining the temperature of the steam generation chamber at the predetermined water level. The determining of the temperature can comprise determining the temperature of the steam generator housing.
TREATMENT APPLIANCE USING A TEMPERATURE SENSOR
BACKGROUND OF THE INVENTION
Field of the Invention The invention relates to methods and structures for controlling supply of water to a steam generator of a fabric treatment appliance.
Description of the Related Art Some fabric treatment appliances, such as a washing machine, a clothes dryer, and a fabric refreshing or revitalizing machine, utilize steam generators for various reasons.
The steam from the steam generator can be used to, for example, heat water, heat a load of fabric items and any water absorbed by the fabric items, dewrinkle fabric items, remove odors from fabric items, etc.
Typically, the steam generator receives water from a household water supply.
It is important that the steam generator has a sufficient amount of water to achieve a desired steam generation rate and to prevent damage to the steam generator. Prior art fabric appliances incorporate pressure sensors and electrical conduction sensors in the steam generator to determine the level of water in the steam generator. Based on the output of the sensor, water can be supplied to the steam generator to maintain a desired water level.
While these pressure and electrical conduction sensors provide a couple ways of controlling the supply of water to the steam generator, other possibly more economical, reliable, and elegant methods and structures for controlling the water supply to a steam generator of a fabric treatment appliance are desirable.
SUMMARY OF THE INVENTION
A fabric treatment appliance according to one embodiment of the invention comprises at least one of a tub and drum defining a fabric treatment chamber;
a steam generator configured to supply steam to the fabric treatment chamber and comprising a chamber configured to hold water; a supply conduit configured to transport water to the steam generator chamber; a temperature sensor configured to sense a temperature representative of the steam generator chamber at a predetermined water level in the steam generator chamber; and a controller coupled to the temperature sensor and configured to control flow of water through the supply conduit based on the sensed temperature to control the level of water in the steam generator chamber.
The fabric treatment appliance can further comprise a valve fluidly coupled to the supply conduit to control the flow of water through the supply conduit. The controller can be coupled to the valve to control operation of the valve based on the sensed temperature.
The temperature sensor can be located on the steam generator at a position corresponding to the predetermined water level.
The temperature sensor can sense a temperature of the steam generator chamber.
The steam generator can further comprise a housing that defines the chamber, and the temperature sensor can sense a temperature of the housing.
The predetermined water level can be a minimum water level in the chamber.
The steam generator can be an in-line steam generator. The steam generator can comprise an outlet portion, and the predetermined water level can be located at the outlet portion. The steam generator outlet portion can comprise an ascending conduit.
A method according to one embodiment of the invention of operating a fabric treatment appliance comprising a fabric treatment chamber and a steam generator for supplying steam to the fabric treatment chamber and having a housing defining a chamber configured to hold water comprises determining a temperature representative of the steam generator chamber corresponding to a predetermined water level in the steam generator chamber; supplying water to the steam generator based on the determined temperature;
and generating steam in the steam generator from the supplied water.
The determining of the temperature can comprise determining the temperature of the steam generation chamber at the predetermined water level. The determining of the temperature can comprise determining the temperature of the steam generator housing.
The determining of the temperature can comprise determining the temperature of the steam generator chamber.
The determining of the temperature can comprise sensing the temperature.
The supplying of the water can comprise supplying water to achieve at least the predetermined water level.
The determining of the temperature can comprise determining a temperature at an outlet of the chamber.
The supplying of the water can comprise supplying the water when the determined temperature is greater than or equal to a predetermined temperature. The method can further comprise stopping the supply of water when the determined temperature decreases to a temperature less than or equal to the predetermined temperature.
The supplying of the water can comprise supplying the water when the determined temperature increases by an amount greater than or equal to a predetermined temperature increase.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
Fig. I is a schematic view of a steam washing machine comprising a steam generator according to one embodiment of the invention.
Fig. 2 is a schematic view of a first embodiment steam generator for use with the washing machine of Fig. 1.
Fig. 3 is a flow chart of a method of operating the steam washing machine of Fig.
1 according to one embodiment of the invention to control a supply of water to the steam generator.
Fig. 4 is a schematic view of a second embodiment steam generator for use with the washing machine of Fig. 1.
Fig. 5 is a schematic view of a third embodiment steam generator for use with the washing machine of Fig. 1.
The determining of the temperature can comprise sensing the temperature.
The supplying of the water can comprise supplying water to achieve at least the predetermined water level.
The determining of the temperature can comprise determining a temperature at an outlet of the chamber.
The supplying of the water can comprise supplying the water when the determined temperature is greater than or equal to a predetermined temperature. The method can further comprise stopping the supply of water when the determined temperature decreases to a temperature less than or equal to the predetermined temperature.
The supplying of the water can comprise supplying the water when the determined temperature increases by an amount greater than or equal to a predetermined temperature increase.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
Fig. I is a schematic view of a steam washing machine comprising a steam generator according to one embodiment of the invention.
Fig. 2 is a schematic view of a first embodiment steam generator for use with the washing machine of Fig. 1.
Fig. 3 is a flow chart of a method of operating the steam washing machine of Fig.
1 according to one embodiment of the invention to control a supply of water to the steam generator.
Fig. 4 is a schematic view of a second embodiment steam generator for use with the washing machine of Fig. 1.
Fig. 5 is a schematic view of a third embodiment steam generator for use with the washing machine of Fig. 1.
Fig. 6 is a schematic view of a fourth embodiment steam generator for use with the washing machine of Fig. 1, wherein the steam generator comprises a weight sensor shown in a condition corresponding to a steam generator weight greater than a predetermined weight.
Fig. 7 is a schematic view of the steam generator of Fig. 6 with the weight sensor shown in a condition corresponding to a steam generator weight less than a predetermined weight.
DESCRIPTION OF EMBODIMENTS OF THE INVENTION
The invention provides methods and structures for controlling a supply of water to a steam generator of a fabric treatment appliance. The fabric treatment appliance can be any machine that treats fabrics, and examples of the fabric treatment appliance include, but are not limited to, a washing machine, including top-loading, front-loading, vertical axis, and horizontal axis washing machines; a dryer, such as a tumble dryer or a stationary dryer, including top-loading dryers and front-loading dryers; a combination washing machine and dryer; a tumbling or stationary refreshing machine; an extractor;
a non-aqueous washing apparatus; and a revitalizing machine. For illustrative purposes, the invention will be described with respect to a washing machine, with it being understood that the invention can be adapted for use with any type of fabric treatment appliance having a steam generator.
Referring now to the figures, Fig. I is a schematic view of an exemplary steam washing machine 10. The washing machine 10 comprises a cabinet 12 that houses a stationary tub 14. A rotatable drum 16 mounted within the tub 14 defines a fabric treatment chamber and includes a plurality of perforations 18, and liquid can flow between the tub 14 and the drum 16 through the perforations 18. The drum 16 further comprises a plurality of baffles 20 disposed on an inner surface of the drum 16 to lift fabric items contained in the drum 16 while the drum 16 rotates, as is well known in the washing machine art. A motor 22 coupled to the drum 16 through a belt 24 rotates the drum 16. Both the tub 14 and the drum 16 can be selectively closed by a door 26.
Fig. 7 is a schematic view of the steam generator of Fig. 6 with the weight sensor shown in a condition corresponding to a steam generator weight less than a predetermined weight.
DESCRIPTION OF EMBODIMENTS OF THE INVENTION
The invention provides methods and structures for controlling a supply of water to a steam generator of a fabric treatment appliance. The fabric treatment appliance can be any machine that treats fabrics, and examples of the fabric treatment appliance include, but are not limited to, a washing machine, including top-loading, front-loading, vertical axis, and horizontal axis washing machines; a dryer, such as a tumble dryer or a stationary dryer, including top-loading dryers and front-loading dryers; a combination washing machine and dryer; a tumbling or stationary refreshing machine; an extractor;
a non-aqueous washing apparatus; and a revitalizing machine. For illustrative purposes, the invention will be described with respect to a washing machine, with it being understood that the invention can be adapted for use with any type of fabric treatment appliance having a steam generator.
Referring now to the figures, Fig. I is a schematic view of an exemplary steam washing machine 10. The washing machine 10 comprises a cabinet 12 that houses a stationary tub 14. A rotatable drum 16 mounted within the tub 14 defines a fabric treatment chamber and includes a plurality of perforations 18, and liquid can flow between the tub 14 and the drum 16 through the perforations 18. The drum 16 further comprises a plurality of baffles 20 disposed on an inner surface of the drum 16 to lift fabric items contained in the drum 16 while the drum 16 rotates, as is well known in the washing machine art. A motor 22 coupled to the drum 16 through a belt 24 rotates the drum 16. Both the tub 14 and the drum 16 can be selectively closed by a door 26.
Washing machines are typically categorized as either a vertical axis washing machine or a horizontal axis washing machine. As used herein, the "vertical axis"
washing machine refers to a washing machine comprising a rotatable drum, perforate or imperforate, that holds fabric items and a fabric moving element, such as an agitator, impeller, nutator, and the like, that induces movement of the fabric items to impart mechanical energy to the fabric articles for cleaning action. In some vertical axis washing machines, the drum rotates about a vertical axis generally perpendicular to a surface that supports the washing machine. However, the rotational axis need not be vertical. The drum can rotate about an axis inclined relative to the vertical axis. As used herein, the "horizontal axis" washing machine refers to a washing machine having a rotatable drum, perforated or imperforate, that holds fabric items and washes the fabric items by the fabric items rubbing against one another as the drum rotates. In horizontal axis washing machines, the clothes are lifted by the rotating drum and then fall in response to gravity to form a tumbling action that imparts the mechanical energy to the fabric articles. In some horizontal axis washing machines, the drum rotates about a horizontal axis generally parallel to a surface that supports the washing machine. However, the rotational axis need not be horizontal. The drum can rotate about an axis inclined relative to the horizontal axis. Vertical axis and horizontal axis machines are best differentiated by the manner in which they impart mechanical energy to the fabric articles. The illustrated exemplary washing machine of Fig. 1 is a horizontal axis washing machine.
The motor 22 can rotate the drum 16 at various speeds in opposite rotational directions. In particular, the motor 22 can rotate the drum 16 at tumbling speeds wherein the fabric items in the drum 16 rotate with the drum 16 from a lowest location of the drum 16 towards a highest location of the drum 16, but fall back to the lowest location of the drum 16 before reaching the highest location of the drum 16. The rotation of the fabric items with the drum 16 can be facilitated by the baffles 20.
Alternatively, the motor 22 can rotate the drum 16 at spin speeds wherein the fabric items rotate with the drum 16 without falling.
washing machine refers to a washing machine comprising a rotatable drum, perforate or imperforate, that holds fabric items and a fabric moving element, such as an agitator, impeller, nutator, and the like, that induces movement of the fabric items to impart mechanical energy to the fabric articles for cleaning action. In some vertical axis washing machines, the drum rotates about a vertical axis generally perpendicular to a surface that supports the washing machine. However, the rotational axis need not be vertical. The drum can rotate about an axis inclined relative to the vertical axis. As used herein, the "horizontal axis" washing machine refers to a washing machine having a rotatable drum, perforated or imperforate, that holds fabric items and washes the fabric items by the fabric items rubbing against one another as the drum rotates. In horizontal axis washing machines, the clothes are lifted by the rotating drum and then fall in response to gravity to form a tumbling action that imparts the mechanical energy to the fabric articles. In some horizontal axis washing machines, the drum rotates about a horizontal axis generally parallel to a surface that supports the washing machine. However, the rotational axis need not be horizontal. The drum can rotate about an axis inclined relative to the horizontal axis. Vertical axis and horizontal axis machines are best differentiated by the manner in which they impart mechanical energy to the fabric articles. The illustrated exemplary washing machine of Fig. 1 is a horizontal axis washing machine.
The motor 22 can rotate the drum 16 at various speeds in opposite rotational directions. In particular, the motor 22 can rotate the drum 16 at tumbling speeds wherein the fabric items in the drum 16 rotate with the drum 16 from a lowest location of the drum 16 towards a highest location of the drum 16, but fall back to the lowest location of the drum 16 before reaching the highest location of the drum 16. The rotation of the fabric items with the drum 16 can be facilitated by the baffles 20.
Alternatively, the motor 22 can rotate the drum 16 at spin speeds wherein the fabric items rotate with the drum 16 without falling.
The washing machine 10 of Fig. 1 further comprises a liquid supply and recirculation system. Liquid, such as water, can be supplied to the washing machine 10 from a household water supply 28. A first supply conduit 30 fluidly couples the water supply 28 to a detergent dispenser 32. An inlet valve 34 controls flow of the liquid from the water supply 28 and through the first supply conduit 30 to the detergent dispenser 32.
The inlet valve 34 can be positioned in any suitable location between the water supply 28 and the detergent dispenser 32. A liquid conduit 36 fluidly couples the detergent dispenser 32 with the tub 14. The liquid conduit 36 can couple with the tub 14 at any suitable location on the tub 14 and is shown as being coupled to a front wall of the tub 14 in Fig. 1 for exemplary purposes. The liquid that flows from the detergent dispenser 32 through the liquid conduit 36 to the tub 14 enters a space between the tub 14 and the drnm 16 and flows by gravity to a sump 38 formed in part by a lower portion 40 of the tub 14. The sump 38 is also formed by a sump conduit 42 that fluidly couples the lower portion 40 of the tub 14 to a pump 44. The pump 44 can direct fluid to a drain conduit 46, which drains the liquid from the washing machine 10, or to a recirculation conduit 48, which terminates at a recirculation inlet 50. The recirculation inlet 50 directs the liquid from the recirculation conduit 48 into the drum 16. The recirculation inlet 50 can introduce the liquid into the drum 16 in any suitable manner, such as by spraying, dripping, or providing a steady flow of the liquid.
The exemplary washing machine 10 further includes a steam generation system.
The steam generation system comprises a steam generator 60 that receives liquid from the water supply 28 through a second supply conduit 62. A flow controller 64 controls flow of the liquid from the water supply 28 and through the second supply conduit 62 to the steam generator 60. The flow controller 64 can be positioned in any suitable location between the water supply 28 and the steam generator 60. A steam conduit 66 fluidly couples the steam generator 60 to a steam inlet 68, which introduces steam into the tub 14. The steam inlet 68 can couple with the tub 14 at any suitable location on the tub 14 and is shown as being coupled to a rear wall of the tub 14 in Fig. 1 for exemplary purposes. According to one embodiment of the invention, the steam inlet 68 is positioned at a height higher than a level corresponding to a maximum level of the liquid in the tub 14 to prevent backflow of the liquid into the steam conduit 66. The steam that enters the tub 14 through the steam inlet 68 subsequently enters the drum 16 through the perforations 18. Alternatively, the steam inlet 68 can be configured to introduce the steam directly into the drum 16. The steam inlet 68 can introduce the steam into the tub 14 in any suitable manner. The washing machine 10 can further include an exhaust conduit that directs steam that leaves the tub 14 externally of the washing machine 10.
The exhaust conduit can be configured to exhaust the steam directly to the exterior of the washing machine 10. Alternatively, the exhaust conduit can be configured to direct the steam through a condenser prior to leaving the washing machine 10.
The steam generator 60 can be any type of device that converts the liquid to steam. For example, the steam generator 60 can be a tank-type steam generator that stores a volume of liquid and heats the volume of liquid to convert the liquid to steam.
Alternatively, the steam generator 60 can be an in-line steam generator that converts the liquid to steam as the liquid flows through the steam generator 60. The steam generator 60 can produce pressurized or non-pressurized steam.
In addition to producing steam, the steam generator 60, whether an in-line steam generator, a tank-type steam generator, or any other type of steam generator, can heat water to a temperature below a steam transformation temperature, whereby the steam generator 60 produces hot water. The hot water can be delivered to the tub 14 and/or drum 16 from the steam generator 60. The hot water can be used alone or can optionally mix with cold water in the tub 14 and/or drum 16. Using the steam generator to produce hot water can be useful when the steam generator 60 couples only with a cold water source of the water supply 28.
Fig. 2 is a schematic view of an exemplary in-line steam generator 60 for use with the washing machine 10. The steam generator 60 comprises a housing or main body 70 in the form of a generally cylindrical tube. The main body 70 has an inside surface 72 that defines a steam generation chamber 74. The steam generation chamber 74 is fluidly coupled to the second supply conduit 62 such that fluid from the second supply conduit 62 can flow through the flow controller 64 and can enter the steam generation chamber 74. The steam generation chamber 74 is also fluidly coupled to the steam conduit 66 such that steam generated in the steam generation chamber 74 can flow into the steam conduit 66. The flow of fluid into and steam out of the steam generation chamber 74 is represented by arrows in Fig. 2.
The flow controller 64 effects a flow of water through the second supply conduit 62 and also restricts a flow rate of the water through the second supply conduit 62. The pressure and, therefore, flow rate of water associated with the water supply 28 can vary depending on geography (i.e., the pressure can vary from country to country and within a country, such as from municipality to municipality within the United States).
To accommodate this variation in pressure and provide a relatively constant flow rate, the flow controller 64 restricts the flow rate through the second supply conduit 62 to a restricted flow rate that is less than the flow rate of the water supply 28.
The flow controller 64 can take on many forms, and one example of the flow controller 64 comprises a valve 90 and a restrictor 92. The valve 90 can be any suitable type of valve that can open to allow water to flow through the second supply conduit 62 to the steam generation chamber 74 and close to prevent water from flowing through the second supply conduit 62 to the steam generation chamber 74. For example, the valve 90 can be a solenoid valve having an "on" or open position and an "off' or closed position.
The restrictor 92 can be any suitable type of restrictor that restricts the flow rate of water through the second supply conduit 62. For example, the restrictor 92 can be a rubber flow restrictor, such as a rubber disc-like member, located within the second supply conduit 62.
Both the valve 90 and the restrictor 92 have a corresponding flow rate.
According to one embodiment and as illustrated in Fig. 2, the restrictor 92 can have a restrictor flow rate that is greater than a valve flow rate, which is the flow rate of the valve 90. With such relative flow rates, the restrictor 92 can be located upstream from the valve 90 whereby the restrictor 92 restricts the flow rate of the water supply 28 to provide a relatively constant flow rate, and the valve 90 further restricts the flow rate and simultaneously controls the flow of water through the second supply conduit 62.
According to another embodiment, the restrictor flow rate can be less than the valve flow rate, and the restrictor 92 can be located downstream from the valve 90. For this configuration, the valve 90 can open to allow the water to flow through the valve 90 at the valve flow rate, and the restrictor 92 reduces the flow rate of the water from the valve flow rate to the restrictor flow rate.
According to yet another embodiment, the valve 90 and the restrictor 92 can be integrated into a single unit whereby the valve 90 and the restrictor effectively simultaneously effect water flow through the second supply conduit 62 and restrict the flow rate through the second supply conduit 62 to a flow rate less than that associated with the water supply 28.
Regardless of the relative configuration of the valve 90 and the restrictor 92, the valve 90 can be configured to supply the fluid to the steam generator 60 in any suitable manner. For example, the fluid can be supplied in a continuous manner or according to a duty cycle where the fluid is supplied for discrete periods of time when the valve 90 is open separated by discrete periods of time when the valve 90 is closed. Thus, for the duty cycle, the periods of time when the fluid can flow through the valve 90 alternate with the periods of time when the fluid cannot flow through the valve 90.
Alternatively, the flow controller 64 can comprise a proportional valve that performs the functions of both the valve 90 and the restrictor 92, i.e., the controlling the flow of water and controlling the rate of the flow through the second supply conduit 62.
In this way, the proportion valve can provide a continuous supply of water at the desired flow rate, without the need for cycling the valve in accordance with a duty cycle. The proportional valve can be any suitable type of proportional valve, such as a solenoid proportional valve.
The steam generator 60 further comprises a heater body 76 and a heater 78 embedded in the heater body 76. The heater body 76 is made of a material capable of conducting heat. For example, the heater body 76 can be made of a metal, such as aluminum. The heater body 76 of the illustrated embodiment is shown as being integrally formed with the main body 70, but it is within the scope of the invention for the heater body 76 to be formed as a component separate from the main body 70. In the illustrated embodiment, the main body 70 can also be made of a heat conductive material, such as metal. As a result, heat generated by the heater 78 can conduct through the heater body 76 and the main body 70 to heat fluid in the steam generation chamber 74. The heater 78 can be any suitable type of heater, such as a resistive heater, configured to generate heat.
A thermal fuse 80 can be positioned in series with the heater 78 to prevent overheating of the heater 78. Alternatively, the heater 78 can be located within the steam generation chamber 74 or in any other suitable location in the steam generator 60.
The steam generator 60 further includes a temperature sensor 82 that can sense a temperature of the steam generation chamber 74 or a temperature representative of the temperature of the steam generation chamber 74. The temperature sensor 82 of the illustrated embodiment is coupled to the main body 70; however, it is within the scope of the invention to employ temperature sensors in other locations. For example, the temperature sensor 82 can be a probe-type sensor that extends through the inside surface 72 into the steam generation chamber 74.
The temperature sensor 82 and the heater 78 can be coupled to a controller 84, which can control the operation of heater 78 in response to information received from the temperature sensor 82. The controller 84 can also be coupled to the flow controller 64, such as to the valve 90 of the flow controller 64 of the illustrated embodiment, to control the operation of the flow controller 64 and can include a timer 86 to measure a time during which the flow controller 64 effects the flow of water through the second supply conduit 62.
The washing machine 10 can further comprise a controller coupled to various working components of the washing machine 10, such as the pump 44, the motor 22, the inlet valve 34, the flow controller 64, the detergent dispenser 32, and the steam generator 60, to control the operation of the washing machine 10. The controller can receive data from the working components and can provide commands, which can be based on the received data, to the working components to execute a desired operation of the washing machine 10.
The liquid supply and recirculation system and the steam generator system can differ from the configuration shown in Fig. 1, such as by inclusion of other valves, conduits, wash aid dispensers, and the like, to control the flow of liquid and steam through the washing machine 10 and for the introduction of more than one type of detergent/wash aid. For example, a valve can be located in the liquid conduit 36, in the recirculation conduit 48, and in the steam conduit 66. Furthermore, an additional conduit can be included to couple the water supply 28 directly to the tub 14 or the drum 16 so that the liquid provided to the tub 14 or the drum 16 does not have to pass through the detergent dispenser 32. Alternatively, the liquid can be provided to the tub 14 or the drum 16 through the steam generator 60 rather than through the detergent dispenser 32 or the additional conduit. As another example, the recirculation conduit 48 can be coupled to the liquid conduit 36 so that the recirculated liquid enters the tub 14 or the drum 16 at the same location where the liquid from the detergent dispenser 32 enters the tub 14.
The washing machine of Fig. 1 is provided for exemplary purposes only. It is within the scope of the invention to perform the inventive methods described below or use the steam generator 60 on other types of washing machines, examples of which are disclosed in: our Docket Number US20050365, titled "Method of Operating a Washing Machine Using Steam;" our Docket Number US20060177, titled "Steam Washing Machine Operation Method Having Dual Speed Spin Pre-Wash;" and our Docket Number US20060178, titled "Steam Washing Machine Operation Method Having Dry Spin Pre-Wash," all filed DATE, which are incorporated herein by reference in their entirety.
A method 100 of operating the washing machine 10 to control the supply of water to the steam generator 60 according to one embodiment of the invention is illustrated in the flow chart of Fig. 3. In general, the method 100 comprises a step 102 of supplying water to the steam generator 60 followed by a step 104 of generating steam from the supplied water. Either during or after the generation of steam in the step 104, water can be resupplied to the steam generator 60 in a step 106 to replenish the water in the steam generator 60 that has converted to steam. In step 108, it is determined if the steam generation is complete, which can be determined in any suitable manner. For example, the steam generation can occur for a predetermined period of time or until a fabric load in the fabric treatment chamber achieves a predetermined temperature. If the steam generation is not complete, then the steps 104, 106 of generating the steam and resupplying the water to the steam generator 60 are repeated until it is determined that the steam generation is complete. The steps 104, 106, 108 can be performed sequentially or simultaneously.
The method 100 can be executed in the following manner when using the steam generator 60 having the flow controller 64. Because the flow rate of the flow controller 64 is known, the flow controller 64 can supply a first known volume of water during the step 102 of supplying water to the steam generator 60 by operating for a first predetermined time. In other words, the first predetermined time for operating the flow controller 64 (units=time) can be calculated by multiplying the first known volume of water (units=volume) by the inverse of the flow rate of the flow controller 64 (units=time/volume). When calculating the first predetermined time, the flow rate of the controller 64 equals the smaller of the valve flow rate and the restrictor flow rate (assuming the flow controller 64 comprises both the valve 90 and the restrictor 92) as the smaller flow rate determines the flow rate of the water that enters the steam generation chamber 74. Once the first predetermined time is determined, the controller 84 opens the valve 90 for the first predetermined time, which can be measured by the timer 86, to supply the first known volume of water.
In practice, the controller of the washing machine 10 might not actually execute the above calculation of the first predetermined time. Rather, the controller can be programmed with data sets relating volume and time for one or more flow rates, and the controller can refer to the data sets instead of performing calculations during the operation of the washing machine 10.
The inlet valve 34 can be positioned in any suitable location between the water supply 28 and the detergent dispenser 32. A liquid conduit 36 fluidly couples the detergent dispenser 32 with the tub 14. The liquid conduit 36 can couple with the tub 14 at any suitable location on the tub 14 and is shown as being coupled to a front wall of the tub 14 in Fig. 1 for exemplary purposes. The liquid that flows from the detergent dispenser 32 through the liquid conduit 36 to the tub 14 enters a space between the tub 14 and the drnm 16 and flows by gravity to a sump 38 formed in part by a lower portion 40 of the tub 14. The sump 38 is also formed by a sump conduit 42 that fluidly couples the lower portion 40 of the tub 14 to a pump 44. The pump 44 can direct fluid to a drain conduit 46, which drains the liquid from the washing machine 10, or to a recirculation conduit 48, which terminates at a recirculation inlet 50. The recirculation inlet 50 directs the liquid from the recirculation conduit 48 into the drum 16. The recirculation inlet 50 can introduce the liquid into the drum 16 in any suitable manner, such as by spraying, dripping, or providing a steady flow of the liquid.
The exemplary washing machine 10 further includes a steam generation system.
The steam generation system comprises a steam generator 60 that receives liquid from the water supply 28 through a second supply conduit 62. A flow controller 64 controls flow of the liquid from the water supply 28 and through the second supply conduit 62 to the steam generator 60. The flow controller 64 can be positioned in any suitable location between the water supply 28 and the steam generator 60. A steam conduit 66 fluidly couples the steam generator 60 to a steam inlet 68, which introduces steam into the tub 14. The steam inlet 68 can couple with the tub 14 at any suitable location on the tub 14 and is shown as being coupled to a rear wall of the tub 14 in Fig. 1 for exemplary purposes. According to one embodiment of the invention, the steam inlet 68 is positioned at a height higher than a level corresponding to a maximum level of the liquid in the tub 14 to prevent backflow of the liquid into the steam conduit 66. The steam that enters the tub 14 through the steam inlet 68 subsequently enters the drum 16 through the perforations 18. Alternatively, the steam inlet 68 can be configured to introduce the steam directly into the drum 16. The steam inlet 68 can introduce the steam into the tub 14 in any suitable manner. The washing machine 10 can further include an exhaust conduit that directs steam that leaves the tub 14 externally of the washing machine 10.
The exhaust conduit can be configured to exhaust the steam directly to the exterior of the washing machine 10. Alternatively, the exhaust conduit can be configured to direct the steam through a condenser prior to leaving the washing machine 10.
The steam generator 60 can be any type of device that converts the liquid to steam. For example, the steam generator 60 can be a tank-type steam generator that stores a volume of liquid and heats the volume of liquid to convert the liquid to steam.
Alternatively, the steam generator 60 can be an in-line steam generator that converts the liquid to steam as the liquid flows through the steam generator 60. The steam generator 60 can produce pressurized or non-pressurized steam.
In addition to producing steam, the steam generator 60, whether an in-line steam generator, a tank-type steam generator, or any other type of steam generator, can heat water to a temperature below a steam transformation temperature, whereby the steam generator 60 produces hot water. The hot water can be delivered to the tub 14 and/or drum 16 from the steam generator 60. The hot water can be used alone or can optionally mix with cold water in the tub 14 and/or drum 16. Using the steam generator to produce hot water can be useful when the steam generator 60 couples only with a cold water source of the water supply 28.
Fig. 2 is a schematic view of an exemplary in-line steam generator 60 for use with the washing machine 10. The steam generator 60 comprises a housing or main body 70 in the form of a generally cylindrical tube. The main body 70 has an inside surface 72 that defines a steam generation chamber 74. The steam generation chamber 74 is fluidly coupled to the second supply conduit 62 such that fluid from the second supply conduit 62 can flow through the flow controller 64 and can enter the steam generation chamber 74. The steam generation chamber 74 is also fluidly coupled to the steam conduit 66 such that steam generated in the steam generation chamber 74 can flow into the steam conduit 66. The flow of fluid into and steam out of the steam generation chamber 74 is represented by arrows in Fig. 2.
The flow controller 64 effects a flow of water through the second supply conduit 62 and also restricts a flow rate of the water through the second supply conduit 62. The pressure and, therefore, flow rate of water associated with the water supply 28 can vary depending on geography (i.e., the pressure can vary from country to country and within a country, such as from municipality to municipality within the United States).
To accommodate this variation in pressure and provide a relatively constant flow rate, the flow controller 64 restricts the flow rate through the second supply conduit 62 to a restricted flow rate that is less than the flow rate of the water supply 28.
The flow controller 64 can take on many forms, and one example of the flow controller 64 comprises a valve 90 and a restrictor 92. The valve 90 can be any suitable type of valve that can open to allow water to flow through the second supply conduit 62 to the steam generation chamber 74 and close to prevent water from flowing through the second supply conduit 62 to the steam generation chamber 74. For example, the valve 90 can be a solenoid valve having an "on" or open position and an "off' or closed position.
The restrictor 92 can be any suitable type of restrictor that restricts the flow rate of water through the second supply conduit 62. For example, the restrictor 92 can be a rubber flow restrictor, such as a rubber disc-like member, located within the second supply conduit 62.
Both the valve 90 and the restrictor 92 have a corresponding flow rate.
According to one embodiment and as illustrated in Fig. 2, the restrictor 92 can have a restrictor flow rate that is greater than a valve flow rate, which is the flow rate of the valve 90. With such relative flow rates, the restrictor 92 can be located upstream from the valve 90 whereby the restrictor 92 restricts the flow rate of the water supply 28 to provide a relatively constant flow rate, and the valve 90 further restricts the flow rate and simultaneously controls the flow of water through the second supply conduit 62.
According to another embodiment, the restrictor flow rate can be less than the valve flow rate, and the restrictor 92 can be located downstream from the valve 90. For this configuration, the valve 90 can open to allow the water to flow through the valve 90 at the valve flow rate, and the restrictor 92 reduces the flow rate of the water from the valve flow rate to the restrictor flow rate.
According to yet another embodiment, the valve 90 and the restrictor 92 can be integrated into a single unit whereby the valve 90 and the restrictor effectively simultaneously effect water flow through the second supply conduit 62 and restrict the flow rate through the second supply conduit 62 to a flow rate less than that associated with the water supply 28.
Regardless of the relative configuration of the valve 90 and the restrictor 92, the valve 90 can be configured to supply the fluid to the steam generator 60 in any suitable manner. For example, the fluid can be supplied in a continuous manner or according to a duty cycle where the fluid is supplied for discrete periods of time when the valve 90 is open separated by discrete periods of time when the valve 90 is closed. Thus, for the duty cycle, the periods of time when the fluid can flow through the valve 90 alternate with the periods of time when the fluid cannot flow through the valve 90.
Alternatively, the flow controller 64 can comprise a proportional valve that performs the functions of both the valve 90 and the restrictor 92, i.e., the controlling the flow of water and controlling the rate of the flow through the second supply conduit 62.
In this way, the proportion valve can provide a continuous supply of water at the desired flow rate, without the need for cycling the valve in accordance with a duty cycle. The proportional valve can be any suitable type of proportional valve, such as a solenoid proportional valve.
The steam generator 60 further comprises a heater body 76 and a heater 78 embedded in the heater body 76. The heater body 76 is made of a material capable of conducting heat. For example, the heater body 76 can be made of a metal, such as aluminum. The heater body 76 of the illustrated embodiment is shown as being integrally formed with the main body 70, but it is within the scope of the invention for the heater body 76 to be formed as a component separate from the main body 70. In the illustrated embodiment, the main body 70 can also be made of a heat conductive material, such as metal. As a result, heat generated by the heater 78 can conduct through the heater body 76 and the main body 70 to heat fluid in the steam generation chamber 74. The heater 78 can be any suitable type of heater, such as a resistive heater, configured to generate heat.
A thermal fuse 80 can be positioned in series with the heater 78 to prevent overheating of the heater 78. Alternatively, the heater 78 can be located within the steam generation chamber 74 or in any other suitable location in the steam generator 60.
The steam generator 60 further includes a temperature sensor 82 that can sense a temperature of the steam generation chamber 74 or a temperature representative of the temperature of the steam generation chamber 74. The temperature sensor 82 of the illustrated embodiment is coupled to the main body 70; however, it is within the scope of the invention to employ temperature sensors in other locations. For example, the temperature sensor 82 can be a probe-type sensor that extends through the inside surface 72 into the steam generation chamber 74.
The temperature sensor 82 and the heater 78 can be coupled to a controller 84, which can control the operation of heater 78 in response to information received from the temperature sensor 82. The controller 84 can also be coupled to the flow controller 64, such as to the valve 90 of the flow controller 64 of the illustrated embodiment, to control the operation of the flow controller 64 and can include a timer 86 to measure a time during which the flow controller 64 effects the flow of water through the second supply conduit 62.
The washing machine 10 can further comprise a controller coupled to various working components of the washing machine 10, such as the pump 44, the motor 22, the inlet valve 34, the flow controller 64, the detergent dispenser 32, and the steam generator 60, to control the operation of the washing machine 10. The controller can receive data from the working components and can provide commands, which can be based on the received data, to the working components to execute a desired operation of the washing machine 10.
The liquid supply and recirculation system and the steam generator system can differ from the configuration shown in Fig. 1, such as by inclusion of other valves, conduits, wash aid dispensers, and the like, to control the flow of liquid and steam through the washing machine 10 and for the introduction of more than one type of detergent/wash aid. For example, a valve can be located in the liquid conduit 36, in the recirculation conduit 48, and in the steam conduit 66. Furthermore, an additional conduit can be included to couple the water supply 28 directly to the tub 14 or the drum 16 so that the liquid provided to the tub 14 or the drum 16 does not have to pass through the detergent dispenser 32. Alternatively, the liquid can be provided to the tub 14 or the drum 16 through the steam generator 60 rather than through the detergent dispenser 32 or the additional conduit. As another example, the recirculation conduit 48 can be coupled to the liquid conduit 36 so that the recirculated liquid enters the tub 14 or the drum 16 at the same location where the liquid from the detergent dispenser 32 enters the tub 14.
The washing machine of Fig. 1 is provided for exemplary purposes only. It is within the scope of the invention to perform the inventive methods described below or use the steam generator 60 on other types of washing machines, examples of which are disclosed in: our Docket Number US20050365, titled "Method of Operating a Washing Machine Using Steam;" our Docket Number US20060177, titled "Steam Washing Machine Operation Method Having Dual Speed Spin Pre-Wash;" and our Docket Number US20060178, titled "Steam Washing Machine Operation Method Having Dry Spin Pre-Wash," all filed DATE, which are incorporated herein by reference in their entirety.
A method 100 of operating the washing machine 10 to control the supply of water to the steam generator 60 according to one embodiment of the invention is illustrated in the flow chart of Fig. 3. In general, the method 100 comprises a step 102 of supplying water to the steam generator 60 followed by a step 104 of generating steam from the supplied water. Either during or after the generation of steam in the step 104, water can be resupplied to the steam generator 60 in a step 106 to replenish the water in the steam generator 60 that has converted to steam. In step 108, it is determined if the steam generation is complete, which can be determined in any suitable manner. For example, the steam generation can occur for a predetermined period of time or until a fabric load in the fabric treatment chamber achieves a predetermined temperature. If the steam generation is not complete, then the steps 104, 106 of generating the steam and resupplying the water to the steam generator 60 are repeated until it is determined that the steam generation is complete. The steps 104, 106, 108 can be performed sequentially or simultaneously.
The method 100 can be executed in the following manner when using the steam generator 60 having the flow controller 64. Because the flow rate of the flow controller 64 is known, the flow controller 64 can supply a first known volume of water during the step 102 of supplying water to the steam generator 60 by operating for a first predetermined time. In other words, the first predetermined time for operating the flow controller 64 (units=time) can be calculated by multiplying the first known volume of water (units=volume) by the inverse of the flow rate of the flow controller 64 (units=time/volume). When calculating the first predetermined time, the flow rate of the controller 64 equals the smaller of the valve flow rate and the restrictor flow rate (assuming the flow controller 64 comprises both the valve 90 and the restrictor 92) as the smaller flow rate determines the flow rate of the water that enters the steam generation chamber 74. Once the first predetermined time is determined, the controller 84 opens the valve 90 for the first predetermined time, which can be measured by the timer 86, to supply the first known volume of water.
In practice, the controller of the washing machine 10 might not actually execute the above calculation of the first predetermined time. Rather, the controller can be programmed with data sets relating volume and time for one or more flow rates, and the controller can refer to the data sets instead of performing calculations during the operation of the washing machine 10.
The first known volume of water can be any suitable volume. In an initial supply of water to the steam generator 60, for example, the first known volume of water can correspond to the volume of the steam generation chamber 74 to completely fill the steam generation chamber 74 with water.
The steam generator 60 converts the supplied water to steam and thereby consumes the water in the steam generation chamber 74. Knowing a rate of steam generation during the steam generation step 104 enables a determination of the volume of water converted to steam and thereby removed from the steam generation chamber 74.
The resupplying of the water in the step 106 can comprise supplying a second known volume of water to increase the water level in the steam generation chamber 74 and replace the water that has converted to steam and exited the steam generation chamber 74.
The second known volume of water can be supplied during the step 106 of resupplying the water for a second predetermined time, which can be calculated in a manner similar to that described above with respect to the first predetermined time. Once the second predetermined time is determined, the controller 84 opens the valve 90 for the second predetermined time, which can be measured by the timer 86, to supply the second known volume of water.
Optionally, the resupplying of the water can maintain the first known volume of water supplied to the steam generator 60. Alternatively, the resupplying of the water can increase the water level in the steam generation chamber 74 above that achieved with the first predetermined known of water or maintain a water level the steam generation chamber 74 below that achieved with the first known volume of water. When the second known volume of water is less than the first known volume of water, the second predetermined time is logically less than the first predetermined time as the flow rate through the second supply conduit 62 remains constant. The resupplying of the water can occur at discrete intervals, such as after certain time periods of steam generation, or continuously during the generation of steam.
An alternative steam generator 60A is illustrated in Fig. 4, where components similar to those of the first embodiment steam generator 60 are identified with the same reference numeral bearing the letter "A." The steam generator 60A is a tank-type steam generator comprising a housing or main body 70A in the form of a generally rectangular tank. The main body 70A has an inside surface 72A that defmes a steam generation chamber 74A. The steam generation chamber 74A is fluidly coupled to the second supply conduit 62 such that fluid from the water supply 28 can flow through a valve 94 in the second supply conduit 62 and can enter the steam generation chamber 74A, as indicated by the solid arrows entering the steam generation chamber 74A in Fig. 4. The steam generation chamber 74A is also fluidly coupled to the steam conduit 66 such that steam from the steam generation chamber 74A can flow through the steam conduit 66 to the dnun 16, as depicted by solid arrows leaving the steam generation chamber 74A in Fig. 4.
A flow meter 96 located in the second supply conduit 62 determines a flow of water through the second supply conduit 62 and into the steam generation chamber 74A.
The flow meter 96 can have any suitable output representative of the flow of water through the second supply conduit 62. For example, the output of the flow meter 96 can be a flow rate of the water through the second supply conduit 62 or a volume of water supplied through the second supply conduit 62.
The steam generator 60A further comprises a heater 78A, which is shown as being embedded in the main body 70A. It is within the scope of the invention, however, to locate the heater 78A within the steam generation chamber 74A or in any other suitable location in the steam generator 60A. When the heater 78A is embedded in the main body 70A, the main body 70A is made of a material capable of conducting heat. For example, the main body 70A can be made of a metal, such as aluminum. As a result, heat generated by the heater 78A can conduct through the main body 70A to heat fluid in the steam generation chamber 74A. The heater 78A can be any suitable type of heater, such as a resistive heater, configured to generate heat. A thermal fuse 80A can be positioned in series with the heater 78A to prevent overheating of the heater 78A.
The steam generator 60A further includes a temperature sensor 82A that can sense a temperature of the steam generation chamber 74A or a temperature representative of the temperature of the steam generation chamber 74A. The temperature sensor 82A of the illustrated embodiment is a probe-type sensor that projects into the steam generation chamber 74A; however, it is within the scope of the invention to employ temperature sensors in other locations.
The temperature sensor 82A and the heater 78A can be coupled to a controller 84A, which can control the operation of heater 78A in response to information received from the temperature sensor 82A. The controller 84A can also be coupled to the valve 94 and the flow meter 96 to control the operation of the valve 94 and can include a timer 86A to measure a time during which the valve 94 effects the flow of water through the second supply conduit 62.
The method 100 of operating the washing machine 10 illustrated in the flow chart of Fig. 3 can also be executed with the second embodiment steam generator 60A
of Fig.
4. The execution of the method 100 differs from the exemplary execution described above with respect to the first embodiment steam generator 60 due to the use of the flow meter 96 in the second embodiment steam generator 60A rather than the flow controller 64.
The method 100 can be executed in the following manner when using the steam generator 60A having the flow meter 96. For the step 102 of supplying the water to the steam generator 60A, output from the flow meter 96 can be used to determine a volume of water supplied to the steam generation chamber 74A while the water is being supplied through the second supply conduit 62.
For example, in one embodiment, the flow meter 96 can sense the flow rate of the water through the second supply conduit 62 (units=volume/time), and the flow rate can be multiplied by the time the water has been supplied as determined by the timer (units=time) to calculate the volume of water supplied (units=volume). In practice, the controller of the washing machine 10 might not actually execute the above calculation of the volume of water supplied. Rather, the controller can be programmed with data sets relating time and volume for one or more flow rates, and the controller can refer to the data sets instead of performing calculations during the operation of the washing machine 10. Alternatively, the flow meter 96 can directly output the volume of water supplied, thereby negating the need to calculate the volume.
The output from the flow meter 96 can be used to supply a first predetermined volume of water to the steam generator 60A in the step 102, whereby the controller 84A
opens the valve 94 to begin the supply of the first predetermined volume of water and closes the valve 94 when the output from the flow meter 96 communicates that the first predetermined volume of water has been supplied.
The first predetermined volume of water can be any suitable volume. In an initial supply of water to the steam generator 60A, for example, the first predetermined volume of water can correspond to the volume of the steam generation chamber 74A to completely fill the steam generation chamber 74A with water.
The steam generator 60A converts the supplied water to steam and thereby consumes the water in the steam generation chamber 74A. Knowing a rate of steam generation during the steam generation step 104 enables a determination of the volume of water converted to steam and thereby removed from the steam generation chamber 74A.
The resupplying of the water in the step 106 can comprise supplying a second predetermined volume of water to increase the water level in the steam generation chamber 74A and replace the water that has converted to steam and exited the steam generation chamber 74A. The second predetermined volume of water can be supplied during the step 106 of resupplying the water in the manner described above for supplying the first predetermined volume of water. In particular, the controller 84A
opens the valve 94 to begin the supply of the second predetermined volume of water, the output of the flow meter 96 can be used to determine the volume of water supplied through the second supply conduit 62 as the water is being supplied, and the controller 84A
closes the valve 94 to stop the supply when the second predetermined volume of water has been supplied.
Optionally, the resupplying of the water can maintain the first predetermined volume of water supplied to the steam generator 60A. Alternatively, the resupplying of the water can increase the water level in the steam generation chamber 74A
above that achieved with the first predetermined volume of water or maintain a water level the steam generation chamber 74A below that achieved with the first predetermined volume of water. The resupplying of the water can occur at discrete intervals, such as after certain time periods of steam generation, or continuously during the generation of steam.
While the flow controller 64 has been described with respect to an in-line steam generator, and the flow meter 96 has been described with respect to a tank-type steam generator, it is within the scope of the invention to utilize any type of steam generator with the flow controller 64 and any type of steam generator with the flow meter 96. For example, the flow controller 64 can be used on a tank-type steam generator, and the flow meter 96 can be employed with an in-line steam generator. Further, any type of steam generator can be utilized for executing the method 100. The execution of the method 100 is not intended to be limited for use only with steam generators comprising the flow controller 64 and the flow meter 96.
An alternative steam generator 60B is illustrated in Fig. 5, where components similar to those of the first and second embodiment steam generators 60, 60A
are identified with the same reference numeral bearing the letter "B." The steam generator 60B is substantially identical to the first embodiment steam generator 60, except the fluid flow through the second supply conduit 62 is controlled by a valve 94, the main body 70B
includes an ascending outlet portion 98, and the temperature sensor 82B is positioned to detect a temperature representative of the steam generation chamber 74B at a predetermined water level in the steam generation chamber 74B, which in the illustrated embodiment is at the ascending outlet portion 98. The controller 84B is coupled to the temperature sensor 82B, the heater 78B, and the valve 94 to control operation of the steam generator 60B.
The ascending outlet portion 98 is illustrated as being integral with the main body 70B; however, it is within the scope of the invention for the ascending outlet portion 98 to be a separate component or conduit that fluidly couples the main body 70B
to the steam conduit 66. Regardless of the configuration of the ascending outlet portion 98, the interior of the ascending outlet portion 98 forms a portion of the steam generation chamber 74B. In other words, the steam generation chamber 74B extends into the ascending outlet portion 98. Fig. 5 illustrates the predetermined water level as a dotted line WL located in the ascending outlet portion 98. The predetermined water level can be a minimum water level in the steam generation chamber 74 or any other water level, including a range of water levels.
The temperature sensor 82B can detect the temperature representative of the steam generation chamber 74B in any suitable manner. For example, the temperature sensor 82B can detect the temperature by directly sensing a temperature of the main body 70B or other structural housing that forms the ascending outlet portion 98. Directly sensing the temperature of the main body 70B can be accomplished by locating or mounting the temperature sensor 82B on the main body 70B, as shown in the illustrated embodiment.
Alternatively, the temperature sensor 82B can detect the temperature by directly sensing a temperature of the steam generation chamber 74B, such as by being located inside or at least projecting partially into the steam generation chamber 74B. Furthermore, it is within the scope of the invention to locate the temperature sensor 82B at the location corresponding to the predetermined water level or at another location where the temperature sensor 82B is capable of detecting the temperature representative of the steam generation chamber 74B at the predetermined water level.
In general, during operation of the steam generator 60B, the temperature sensor 82B detects the temperature representative of the steam generation chamber 74B
at the predetermined water level in the steam generation chamber 74B and sends an output to the controller 84B. The controller 84B controls the valve 94 to supply water to the steam generator based on the output from the temperature sensor 82B.
The operation of the steam generator 60B with respect to the temperature sensor 82B illustrated in Fig. 5 will be described with an initial assumption that water has been supplied to the steam generation chamber 74B via the second supply conduit 62 and the valve 94 to at least the predetermined water level. Once the water has been supplied to at least the predetermined water level and the heater 78B is powered to heat the water to a steam generation temperature, the temperature sensor 82B detects a relatively stable temperature as long as the water level in the steam generation chamber 74B
remains near the predetermined level. The output of the temperature sensor 82B will inherently have some fluctuation, and the determination of whether the output is relatively stable can be made, for example, by determining if the fluctuation of the output is within a predetermined amount of acceptable fluctuation.
As the water converts to steam and the water level in the steam generation chamber 74B drops below the predetermined water level, the temperature sensor detects a relatively sharp increase in temperature. The sharp increase in temperature results from the absence of water in the steam generation chamber 74B at the predetermined water level. The controller 84B can recognize the sensed temperature increase as a relatively unstable output of the temperature sensor 82B. As stated above, the output of the temperature sensor 82B will inherently have some fluctuation, and the determination of whether the output is relatively unstable can be made, for example, by determining if the fluctuation of the output exceeds the predetermined amount of acceptable fluctuation. In response to the increase in the temperature, the controller 84B
opens the valve 94 to supply water to the steam generation chamber 74B. It is within the scope of the invention for the water level to exceed the predetermined water level when the water is supplied into the steam generation chamber 74B, especially when the predetermined water level corresponds to the minimum water level. The controller 84B
closes the valve 94 to stop the supplying of the water when the output of the temperature sensor 82B is relatively stable, thereby indicating that the water level has achieved or exceeded the predetermined water level. The detection of the temperature and the supplying of the water can occur at discrete intervals or continuously during the generation of steam.
The controller 84B can open and close the valve 94 based on any suitable logic in addition to the stable output method just described. For example, the controller 84B can compare the sensed temperature to a predetermined temperature, whereby the controller 84B opens the valve 94 when the sensed temperature is greater than the predetermined temperature and stops the supplying of water by closing the valve 94 when the sensed temperature returns to or becomes less than the predetermined temperature. In this example, the predetermined temperature can alternatively comprise an upper predetermined temperature above which the valve 94 opens and a lower predetermined temperature below which the valve 94 closes. Utilizing the upper and lower predetermined temperatures provides a range that can account for natural fluctuation in the output of the temperature sensor 82B. Alternatively, when the temperature increases, the controller 84B can compare the sensed temperature increase to a predetermined temperature increase and determine that the water has dropped below the predetermined level when the sensed temperature increase exceeds the predetermined temperature increase.
While the use of the temperature sensor 82B to control the supplying of water to the steam generation chamber 74B has been described with respect to an in-line steam generator, it is within the scope of the invention to utilize any type of steam generator, including a tank-type steam generator, with the temperature sensor 82B and the corresponding method of controlling the supply of water with the temperature sensor 82B.
An alternative steam generator 60C is illustrated in Fig. 6, where components similar to those of the first, second, and third embodiment steam generators 60, 60A, 60B
are identified with the same reference numeral bearing the letter "C." The steam generator 60C is substantially identical to the second embodiment steam generator 60A, except that the former lacks the flow meter 96 and includes a weight sensor 120 that outputs a signal responsive to the weight of the steam generator 60. The controller 84C is coupled to the weight sensor 120, the heater 78C, and the valve 94 to control operation of the steam generator 60C.
The weight sensor 120 of the illustrated embodiment comprises a biasing member 122 and a switch 124. The biasing member 122 can be any suitable device that supports at least a portion of the weight of the steam generator 60C and exerts an upward force on the steam generator 60C. In the exemplary embodiment of Fig. 6, the biasing member 122 comprises a coil compression spring. The switch 124 can be any suitable switching device and actuates or changes state when the weight of the steam generator decreases to below a predetermined weight. Because the supply of water into and evaporation of water from the steam generation chamber 74B alters the weight of the steam generator 60C, the weight of the steam generator 60C directly corresponds to the amount of water in the steam generation chamber 74B. Thus, the predetermined weight corresponds to a predetermined amount of water in the steam generation chamber 74C.
The switch 124 is illustrated as being located below the steam generator 60C, but it is within the scope of the invention for the switch 124 to be located in any suitable position relative to the steam generator 60C.
In general, during the operation of the steam generator 60C, the weight sensor outputs a signal representative of the weight of the steam generator 60C, and the controller 84C utilizes the output to determine a status of the water in the steam generator 60C. For example, the status of the water can be whether the amount of water in the steam generator is sufficient (e.g., whether the water at least reaches a predetermined water level). Based on the determined status, the controller 84C controls the supply of the water to the steam generator 60C.
The operation of the steam generator 60C with respect to the weight sensor 120 illustrated in Fig. 6 will be described with an initial assumption that water has been supplied to the steam generation chamber 74C via the second supply conduit 62 and the valve 94 to a level corresponding to an amount of water in the steam generation chamber 74C greater than or equal to a predetermined amount of water. It follows that the amount of water greater than the predetermined amount of water corresponds to a weight of the steam generator greater than a predetermined weight of the steam generator 60C. As shown in Fig. 6, when the amount of water/weight of the steam generator 60C is greater than the predetermined amount of water/predetermined weight of the steam generator 60C, the weight of the steam generator 60C overcomes the upward force applied by the biasing member 122 and depresses the switch 124, as shown in phantom in Fig.
6. The depression of the switch 124 communicates to the controller 84C that the weight of the steam generator is greater than or equal to predetermined weight (i.e., the water level in the steam generation chamber 74C is sufficient), and the controller 84C closes the valve 94 to prevent supply of water to the steam generation chamber 74C.
As the heater 78C heats the water in the steam generation chamber 74B, the water converts to steam and leaves the steam generation chamber 74B through the steam conduit 66, as illustrated by arrows in Fig. 6. Consequently, the amount of water in the steam generation chamber 74B decreases. Referring now to Fig. 7, when the amount of water decreases to below the predetermined amount of water, the weight of the steam generator 60C is no longer sufficient to overcome the upward force of the biasing member 122, and biasing member 122 lifts the steam generator 60C from the switch 124, which thereby actuates or changes state to communicate to the controller 84C
that the weight of the steam generator 60C is less than the predetermined weight (i.e., the water level in the steam generation chamber 74C is not sufficient). In response, the controller 84B opens the valve 94 to supply water to the steam generation chamber 74B via the second supply conduit 62, as indicated by arrows entering the steam generation chamber 74B in Fig. 7. The controller 84B can close the valve 94 to stop the supply of water when the amount of water/weight of the steam generator 60C reaches or exceeds the predetermined amount of water/predetermined weight of the steam generator 60C, as indicated by depression of the switch 124.
The predetermined amount of water/predetermined weight of the steam generator 60C can be any suitable amount/weight, such as a minimum amount/weight.
Further, the predetermined amount/weight can be a single value or can comprise a range of values.
The determining of the status of the water and the supplying of the water can occur at discrete intervals or continuously during the generation of steam.
As stated above, the switch 124 can be located in any suitable position relative to the steam generator 60C. For example, the switch 124 can be located above the steam generator 60C whereby the switch depresses when the weight of the steam generator 60C
falls below the predetermined weight or on a side of the steam generator 60C, which can include a projection that actuates or changes a state of the switch 124 as the steam generator 60C moves vertically due to a change in weight. The switch 124 can comprise any type of mechanical switch, such as that described above with respect to Figs. 6 and 7, or can comprise any other type of switch, such as one that includes an infrared sensor that detects the relative positioning of the steam generator 60C to determine the relative weight of the steam generator 60C.
As an alternative to the weight sensor 120 comprising the biasing member 120 and the switch 124, the weight sensor can be any suitable device capable of generating a signal responsive to the weight of the steam generator 60C. For example, the weight sensor can be a scale that measures the weight of the steam generator 60C. The controller 84C can be configured to open the valve 94 to supply a predetermined volume of water corresponding to the measured weight of the steam generator 60C. In other words, the predetermined volume of water can be proportional to the measured weight of the steam generator 60C.
While the use of the weight sensor 120 to control the supplying of water to the steam generation chamber 74C has been described with respect to a tank-type steam generator, it is within the scope of the invention to utilize any type of steam generator, including an in-line steam generator, with the weight sensor 120 and the corresponding method of controlling the supply of water with the weight sensor 120.
While the invention has been specifically described in connection with certain specific embodiments thereof, it is to be understood that this is by way of illustration and not of limitation, and the scope of the appended claims should be construed as broadly as the prior art will permit.
The steam generator 60 converts the supplied water to steam and thereby consumes the water in the steam generation chamber 74. Knowing a rate of steam generation during the steam generation step 104 enables a determination of the volume of water converted to steam and thereby removed from the steam generation chamber 74.
The resupplying of the water in the step 106 can comprise supplying a second known volume of water to increase the water level in the steam generation chamber 74 and replace the water that has converted to steam and exited the steam generation chamber 74.
The second known volume of water can be supplied during the step 106 of resupplying the water for a second predetermined time, which can be calculated in a manner similar to that described above with respect to the first predetermined time. Once the second predetermined time is determined, the controller 84 opens the valve 90 for the second predetermined time, which can be measured by the timer 86, to supply the second known volume of water.
Optionally, the resupplying of the water can maintain the first known volume of water supplied to the steam generator 60. Alternatively, the resupplying of the water can increase the water level in the steam generation chamber 74 above that achieved with the first predetermined known of water or maintain a water level the steam generation chamber 74 below that achieved with the first known volume of water. When the second known volume of water is less than the first known volume of water, the second predetermined time is logically less than the first predetermined time as the flow rate through the second supply conduit 62 remains constant. The resupplying of the water can occur at discrete intervals, such as after certain time periods of steam generation, or continuously during the generation of steam.
An alternative steam generator 60A is illustrated in Fig. 4, where components similar to those of the first embodiment steam generator 60 are identified with the same reference numeral bearing the letter "A." The steam generator 60A is a tank-type steam generator comprising a housing or main body 70A in the form of a generally rectangular tank. The main body 70A has an inside surface 72A that defmes a steam generation chamber 74A. The steam generation chamber 74A is fluidly coupled to the second supply conduit 62 such that fluid from the water supply 28 can flow through a valve 94 in the second supply conduit 62 and can enter the steam generation chamber 74A, as indicated by the solid arrows entering the steam generation chamber 74A in Fig. 4. The steam generation chamber 74A is also fluidly coupled to the steam conduit 66 such that steam from the steam generation chamber 74A can flow through the steam conduit 66 to the dnun 16, as depicted by solid arrows leaving the steam generation chamber 74A in Fig. 4.
A flow meter 96 located in the second supply conduit 62 determines a flow of water through the second supply conduit 62 and into the steam generation chamber 74A.
The flow meter 96 can have any suitable output representative of the flow of water through the second supply conduit 62. For example, the output of the flow meter 96 can be a flow rate of the water through the second supply conduit 62 or a volume of water supplied through the second supply conduit 62.
The steam generator 60A further comprises a heater 78A, which is shown as being embedded in the main body 70A. It is within the scope of the invention, however, to locate the heater 78A within the steam generation chamber 74A or in any other suitable location in the steam generator 60A. When the heater 78A is embedded in the main body 70A, the main body 70A is made of a material capable of conducting heat. For example, the main body 70A can be made of a metal, such as aluminum. As a result, heat generated by the heater 78A can conduct through the main body 70A to heat fluid in the steam generation chamber 74A. The heater 78A can be any suitable type of heater, such as a resistive heater, configured to generate heat. A thermal fuse 80A can be positioned in series with the heater 78A to prevent overheating of the heater 78A.
The steam generator 60A further includes a temperature sensor 82A that can sense a temperature of the steam generation chamber 74A or a temperature representative of the temperature of the steam generation chamber 74A. The temperature sensor 82A of the illustrated embodiment is a probe-type sensor that projects into the steam generation chamber 74A; however, it is within the scope of the invention to employ temperature sensors in other locations.
The temperature sensor 82A and the heater 78A can be coupled to a controller 84A, which can control the operation of heater 78A in response to information received from the temperature sensor 82A. The controller 84A can also be coupled to the valve 94 and the flow meter 96 to control the operation of the valve 94 and can include a timer 86A to measure a time during which the valve 94 effects the flow of water through the second supply conduit 62.
The method 100 of operating the washing machine 10 illustrated in the flow chart of Fig. 3 can also be executed with the second embodiment steam generator 60A
of Fig.
4. The execution of the method 100 differs from the exemplary execution described above with respect to the first embodiment steam generator 60 due to the use of the flow meter 96 in the second embodiment steam generator 60A rather than the flow controller 64.
The method 100 can be executed in the following manner when using the steam generator 60A having the flow meter 96. For the step 102 of supplying the water to the steam generator 60A, output from the flow meter 96 can be used to determine a volume of water supplied to the steam generation chamber 74A while the water is being supplied through the second supply conduit 62.
For example, in one embodiment, the flow meter 96 can sense the flow rate of the water through the second supply conduit 62 (units=volume/time), and the flow rate can be multiplied by the time the water has been supplied as determined by the timer (units=time) to calculate the volume of water supplied (units=volume). In practice, the controller of the washing machine 10 might not actually execute the above calculation of the volume of water supplied. Rather, the controller can be programmed with data sets relating time and volume for one or more flow rates, and the controller can refer to the data sets instead of performing calculations during the operation of the washing machine 10. Alternatively, the flow meter 96 can directly output the volume of water supplied, thereby negating the need to calculate the volume.
The output from the flow meter 96 can be used to supply a first predetermined volume of water to the steam generator 60A in the step 102, whereby the controller 84A
opens the valve 94 to begin the supply of the first predetermined volume of water and closes the valve 94 when the output from the flow meter 96 communicates that the first predetermined volume of water has been supplied.
The first predetermined volume of water can be any suitable volume. In an initial supply of water to the steam generator 60A, for example, the first predetermined volume of water can correspond to the volume of the steam generation chamber 74A to completely fill the steam generation chamber 74A with water.
The steam generator 60A converts the supplied water to steam and thereby consumes the water in the steam generation chamber 74A. Knowing a rate of steam generation during the steam generation step 104 enables a determination of the volume of water converted to steam and thereby removed from the steam generation chamber 74A.
The resupplying of the water in the step 106 can comprise supplying a second predetermined volume of water to increase the water level in the steam generation chamber 74A and replace the water that has converted to steam and exited the steam generation chamber 74A. The second predetermined volume of water can be supplied during the step 106 of resupplying the water in the manner described above for supplying the first predetermined volume of water. In particular, the controller 84A
opens the valve 94 to begin the supply of the second predetermined volume of water, the output of the flow meter 96 can be used to determine the volume of water supplied through the second supply conduit 62 as the water is being supplied, and the controller 84A
closes the valve 94 to stop the supply when the second predetermined volume of water has been supplied.
Optionally, the resupplying of the water can maintain the first predetermined volume of water supplied to the steam generator 60A. Alternatively, the resupplying of the water can increase the water level in the steam generation chamber 74A
above that achieved with the first predetermined volume of water or maintain a water level the steam generation chamber 74A below that achieved with the first predetermined volume of water. The resupplying of the water can occur at discrete intervals, such as after certain time periods of steam generation, or continuously during the generation of steam.
While the flow controller 64 has been described with respect to an in-line steam generator, and the flow meter 96 has been described with respect to a tank-type steam generator, it is within the scope of the invention to utilize any type of steam generator with the flow controller 64 and any type of steam generator with the flow meter 96. For example, the flow controller 64 can be used on a tank-type steam generator, and the flow meter 96 can be employed with an in-line steam generator. Further, any type of steam generator can be utilized for executing the method 100. The execution of the method 100 is not intended to be limited for use only with steam generators comprising the flow controller 64 and the flow meter 96.
An alternative steam generator 60B is illustrated in Fig. 5, where components similar to those of the first and second embodiment steam generators 60, 60A
are identified with the same reference numeral bearing the letter "B." The steam generator 60B is substantially identical to the first embodiment steam generator 60, except the fluid flow through the second supply conduit 62 is controlled by a valve 94, the main body 70B
includes an ascending outlet portion 98, and the temperature sensor 82B is positioned to detect a temperature representative of the steam generation chamber 74B at a predetermined water level in the steam generation chamber 74B, which in the illustrated embodiment is at the ascending outlet portion 98. The controller 84B is coupled to the temperature sensor 82B, the heater 78B, and the valve 94 to control operation of the steam generator 60B.
The ascending outlet portion 98 is illustrated as being integral with the main body 70B; however, it is within the scope of the invention for the ascending outlet portion 98 to be a separate component or conduit that fluidly couples the main body 70B
to the steam conduit 66. Regardless of the configuration of the ascending outlet portion 98, the interior of the ascending outlet portion 98 forms a portion of the steam generation chamber 74B. In other words, the steam generation chamber 74B extends into the ascending outlet portion 98. Fig. 5 illustrates the predetermined water level as a dotted line WL located in the ascending outlet portion 98. The predetermined water level can be a minimum water level in the steam generation chamber 74 or any other water level, including a range of water levels.
The temperature sensor 82B can detect the temperature representative of the steam generation chamber 74B in any suitable manner. For example, the temperature sensor 82B can detect the temperature by directly sensing a temperature of the main body 70B or other structural housing that forms the ascending outlet portion 98. Directly sensing the temperature of the main body 70B can be accomplished by locating or mounting the temperature sensor 82B on the main body 70B, as shown in the illustrated embodiment.
Alternatively, the temperature sensor 82B can detect the temperature by directly sensing a temperature of the steam generation chamber 74B, such as by being located inside or at least projecting partially into the steam generation chamber 74B. Furthermore, it is within the scope of the invention to locate the temperature sensor 82B at the location corresponding to the predetermined water level or at another location where the temperature sensor 82B is capable of detecting the temperature representative of the steam generation chamber 74B at the predetermined water level.
In general, during operation of the steam generator 60B, the temperature sensor 82B detects the temperature representative of the steam generation chamber 74B
at the predetermined water level in the steam generation chamber 74B and sends an output to the controller 84B. The controller 84B controls the valve 94 to supply water to the steam generator based on the output from the temperature sensor 82B.
The operation of the steam generator 60B with respect to the temperature sensor 82B illustrated in Fig. 5 will be described with an initial assumption that water has been supplied to the steam generation chamber 74B via the second supply conduit 62 and the valve 94 to at least the predetermined water level. Once the water has been supplied to at least the predetermined water level and the heater 78B is powered to heat the water to a steam generation temperature, the temperature sensor 82B detects a relatively stable temperature as long as the water level in the steam generation chamber 74B
remains near the predetermined level. The output of the temperature sensor 82B will inherently have some fluctuation, and the determination of whether the output is relatively stable can be made, for example, by determining if the fluctuation of the output is within a predetermined amount of acceptable fluctuation.
As the water converts to steam and the water level in the steam generation chamber 74B drops below the predetermined water level, the temperature sensor detects a relatively sharp increase in temperature. The sharp increase in temperature results from the absence of water in the steam generation chamber 74B at the predetermined water level. The controller 84B can recognize the sensed temperature increase as a relatively unstable output of the temperature sensor 82B. As stated above, the output of the temperature sensor 82B will inherently have some fluctuation, and the determination of whether the output is relatively unstable can be made, for example, by determining if the fluctuation of the output exceeds the predetermined amount of acceptable fluctuation. In response to the increase in the temperature, the controller 84B
opens the valve 94 to supply water to the steam generation chamber 74B. It is within the scope of the invention for the water level to exceed the predetermined water level when the water is supplied into the steam generation chamber 74B, especially when the predetermined water level corresponds to the minimum water level. The controller 84B
closes the valve 94 to stop the supplying of the water when the output of the temperature sensor 82B is relatively stable, thereby indicating that the water level has achieved or exceeded the predetermined water level. The detection of the temperature and the supplying of the water can occur at discrete intervals or continuously during the generation of steam.
The controller 84B can open and close the valve 94 based on any suitable logic in addition to the stable output method just described. For example, the controller 84B can compare the sensed temperature to a predetermined temperature, whereby the controller 84B opens the valve 94 when the sensed temperature is greater than the predetermined temperature and stops the supplying of water by closing the valve 94 when the sensed temperature returns to or becomes less than the predetermined temperature. In this example, the predetermined temperature can alternatively comprise an upper predetermined temperature above which the valve 94 opens and a lower predetermined temperature below which the valve 94 closes. Utilizing the upper and lower predetermined temperatures provides a range that can account for natural fluctuation in the output of the temperature sensor 82B. Alternatively, when the temperature increases, the controller 84B can compare the sensed temperature increase to a predetermined temperature increase and determine that the water has dropped below the predetermined level when the sensed temperature increase exceeds the predetermined temperature increase.
While the use of the temperature sensor 82B to control the supplying of water to the steam generation chamber 74B has been described with respect to an in-line steam generator, it is within the scope of the invention to utilize any type of steam generator, including a tank-type steam generator, with the temperature sensor 82B and the corresponding method of controlling the supply of water with the temperature sensor 82B.
An alternative steam generator 60C is illustrated in Fig. 6, where components similar to those of the first, second, and third embodiment steam generators 60, 60A, 60B
are identified with the same reference numeral bearing the letter "C." The steam generator 60C is substantially identical to the second embodiment steam generator 60A, except that the former lacks the flow meter 96 and includes a weight sensor 120 that outputs a signal responsive to the weight of the steam generator 60. The controller 84C is coupled to the weight sensor 120, the heater 78C, and the valve 94 to control operation of the steam generator 60C.
The weight sensor 120 of the illustrated embodiment comprises a biasing member 122 and a switch 124. The biasing member 122 can be any suitable device that supports at least a portion of the weight of the steam generator 60C and exerts an upward force on the steam generator 60C. In the exemplary embodiment of Fig. 6, the biasing member 122 comprises a coil compression spring. The switch 124 can be any suitable switching device and actuates or changes state when the weight of the steam generator decreases to below a predetermined weight. Because the supply of water into and evaporation of water from the steam generation chamber 74B alters the weight of the steam generator 60C, the weight of the steam generator 60C directly corresponds to the amount of water in the steam generation chamber 74B. Thus, the predetermined weight corresponds to a predetermined amount of water in the steam generation chamber 74C.
The switch 124 is illustrated as being located below the steam generator 60C, but it is within the scope of the invention for the switch 124 to be located in any suitable position relative to the steam generator 60C.
In general, during the operation of the steam generator 60C, the weight sensor outputs a signal representative of the weight of the steam generator 60C, and the controller 84C utilizes the output to determine a status of the water in the steam generator 60C. For example, the status of the water can be whether the amount of water in the steam generator is sufficient (e.g., whether the water at least reaches a predetermined water level). Based on the determined status, the controller 84C controls the supply of the water to the steam generator 60C.
The operation of the steam generator 60C with respect to the weight sensor 120 illustrated in Fig. 6 will be described with an initial assumption that water has been supplied to the steam generation chamber 74C via the second supply conduit 62 and the valve 94 to a level corresponding to an amount of water in the steam generation chamber 74C greater than or equal to a predetermined amount of water. It follows that the amount of water greater than the predetermined amount of water corresponds to a weight of the steam generator greater than a predetermined weight of the steam generator 60C. As shown in Fig. 6, when the amount of water/weight of the steam generator 60C is greater than the predetermined amount of water/predetermined weight of the steam generator 60C, the weight of the steam generator 60C overcomes the upward force applied by the biasing member 122 and depresses the switch 124, as shown in phantom in Fig.
6. The depression of the switch 124 communicates to the controller 84C that the weight of the steam generator is greater than or equal to predetermined weight (i.e., the water level in the steam generation chamber 74C is sufficient), and the controller 84C closes the valve 94 to prevent supply of water to the steam generation chamber 74C.
As the heater 78C heats the water in the steam generation chamber 74B, the water converts to steam and leaves the steam generation chamber 74B through the steam conduit 66, as illustrated by arrows in Fig. 6. Consequently, the amount of water in the steam generation chamber 74B decreases. Referring now to Fig. 7, when the amount of water decreases to below the predetermined amount of water, the weight of the steam generator 60C is no longer sufficient to overcome the upward force of the biasing member 122, and biasing member 122 lifts the steam generator 60C from the switch 124, which thereby actuates or changes state to communicate to the controller 84C
that the weight of the steam generator 60C is less than the predetermined weight (i.e., the water level in the steam generation chamber 74C is not sufficient). In response, the controller 84B opens the valve 94 to supply water to the steam generation chamber 74B via the second supply conduit 62, as indicated by arrows entering the steam generation chamber 74B in Fig. 7. The controller 84B can close the valve 94 to stop the supply of water when the amount of water/weight of the steam generator 60C reaches or exceeds the predetermined amount of water/predetermined weight of the steam generator 60C, as indicated by depression of the switch 124.
The predetermined amount of water/predetermined weight of the steam generator 60C can be any suitable amount/weight, such as a minimum amount/weight.
Further, the predetermined amount/weight can be a single value or can comprise a range of values.
The determining of the status of the water and the supplying of the water can occur at discrete intervals or continuously during the generation of steam.
As stated above, the switch 124 can be located in any suitable position relative to the steam generator 60C. For example, the switch 124 can be located above the steam generator 60C whereby the switch depresses when the weight of the steam generator 60C
falls below the predetermined weight or on a side of the steam generator 60C, which can include a projection that actuates or changes a state of the switch 124 as the steam generator 60C moves vertically due to a change in weight. The switch 124 can comprise any type of mechanical switch, such as that described above with respect to Figs. 6 and 7, or can comprise any other type of switch, such as one that includes an infrared sensor that detects the relative positioning of the steam generator 60C to determine the relative weight of the steam generator 60C.
As an alternative to the weight sensor 120 comprising the biasing member 120 and the switch 124, the weight sensor can be any suitable device capable of generating a signal responsive to the weight of the steam generator 60C. For example, the weight sensor can be a scale that measures the weight of the steam generator 60C. The controller 84C can be configured to open the valve 94 to supply a predetermined volume of water corresponding to the measured weight of the steam generator 60C. In other words, the predetermined volume of water can be proportional to the measured weight of the steam generator 60C.
While the use of the weight sensor 120 to control the supplying of water to the steam generation chamber 74C has been described with respect to a tank-type steam generator, it is within the scope of the invention to utilize any type of steam generator, including an in-line steam generator, with the weight sensor 120 and the corresponding method of controlling the supply of water with the weight sensor 120.
While the invention has been specifically described in connection with certain specific embodiments thereof, it is to be understood that this is by way of illustration and not of limitation, and the scope of the appended claims should be construed as broadly as the prior art will permit.
Claims (20)
1. A fabric treatment appliance comprising:
at least one of a tub and drum defining a fabric treatment chamber;
a steam generator configured to supply steam to the fabric treatment chamber and comprising a chamber configured to hold water;
a supply conduit configured to transport water to the steam generator chamber;
a temperature sensor configured to sense a temperature representative of the steam generator chamber at a predetermined water level in the steam generator chamber; and a controller coupled to the temperature sensor and configured to control flow of water through the supply conduit based on the sensed temperature to control the level of water in the steam generator chamber.
at least one of a tub and drum defining a fabric treatment chamber;
a steam generator configured to supply steam to the fabric treatment chamber and comprising a chamber configured to hold water;
a supply conduit configured to transport water to the steam generator chamber;
a temperature sensor configured to sense a temperature representative of the steam generator chamber at a predetermined water level in the steam generator chamber; and a controller coupled to the temperature sensor and configured to control flow of water through the supply conduit based on the sensed temperature to control the level of water in the steam generator chamber.
2. The fabric treatment appliance of claim 1, further comprising a valve fluidly coupled to the supply conduit to control the flow of water through the supply conduit.
3. The fabric treatment appliance of claim 2 wherein the controller is coupled to the valve to control operation of the valve based on the sensed temperature.
4. The fabric treatment appliance of claim 1 wherein the temperature sensor is located on the steam generator at a position corresponding to the predetermined water level.
5. The fabric treatment appliance of claim 1 wherein the temperature sensor senses a temperature of the steam generator chamber.
6. The fabric treatment appliance of claim 1 wherein the steam generator further comprises a housing that defines the chamber, and the temperature sensor senses a temperature of the housing.
7. The fabric treatment appliance of claim 1 wherein the predetermined water level is a minimum water level in the chamber.
8. The fabric treatment appliance of claim 1 wherein the steam generator is an in-line steam generator.
9. The fabric treatment appliance of claim 8 wherein the steam generator comprises an outlet portion, and the predetermined water level is located at the outlet portion.
10. The fabric treatment appliance of claim 9 wherein the steam generator outlet portion comprises an ascending conduit.
11. A method of operating a fabric treatment appliance comprising a fabric treatment chamber and a steam generator for supplying steam to the fabric treatment chamber and having a housing defining a chamber configured to hold water, the method comprising:
determining a temperature representative of the steam generator chamber corresponding to a predetermined water level in the steam generator chamber;
supplying water to the steam generator based on the determined temperature; and generating steam in the steam generator from the supplied water.
determining a temperature representative of the steam generator chamber corresponding to a predetermined water level in the steam generator chamber;
supplying water to the steam generator based on the determined temperature; and generating steam in the steam generator from the supplied water.
12. The method of claim 11 wherein the determining of the temperature comprises determining the temperature of the steam generation chamber at the predetermined water level.
13. The method of claim 12 wherein the determining of the temperature comprises determining the temperature of the steam generator housing.
14. The method of claim 12 wherein the determining of the temperature comprises determining the temperature of the steam generator chamber.
15. The method of claim 11, wherein the determining of the temperature comprises sensing the temperature.
16. The method of claim 11 wherein the supplying of the water comprises supplying water to achieve at least the predetermined water level.
17. The method of claim 11 wherein the determining of the temperature comprises determining a temperature at an outlet of the chamber.
18. The method of claim 11 wherein the supplying of the water comprises supplying the water when the determined temperature is greater than or equal to a predetermined temperature.
19. The method of claim 18, further comprising stopping the supply of water when the determined temperature decreases to a temperature less than or equal to the predetermined temperature.
20. The method of claim 11 wherein the supplying of the water comprises supplying the water when the determined temperature increases by an amount greater than or equal to a predetermined temperature increase.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/464,513 US7681418B2 (en) | 2006-08-15 | 2006-08-15 | Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor |
US11/464,513 | 2006-08-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2596566A1 true CA2596566A1 (en) | 2008-02-15 |
Family
ID=38799046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002596566A Abandoned CA2596566A1 (en) | 2006-08-15 | 2007-08-08 | Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor |
Country Status (4)
Country | Link |
---|---|
US (2) | US7681418B2 (en) |
EP (1) | EP1889966B2 (en) |
CA (1) | CA2596566A1 (en) |
MX (1) | MX2007009859A (en) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100556503B1 (en) * | 2002-11-26 | 2006-03-03 | 엘지전자 주식회사 | Control Method of Drying Time for Dryer |
WO2007055510A1 (en) * | 2005-11-10 | 2007-05-18 | Lg Electronics Inc. | Steam generator and laundry dryer having the same and controlling method thereof |
KR101233164B1 (en) * | 2006-01-26 | 2013-02-15 | 엘지전자 주식회사 | Steam generator and washing machine using the same |
US7941885B2 (en) | 2006-06-09 | 2011-05-17 | Whirlpool Corporation | Steam washing machine operation method having dry spin pre-wash |
US7765628B2 (en) | 2006-06-09 | 2010-08-03 | Whirlpool Corporation | Steam washing machine operation method having a dual speed spin pre-wash |
US7730568B2 (en) | 2006-06-09 | 2010-06-08 | Whirlpool Corporation | Removal of scale and sludge in a steam generator of a fabric treatment appliance |
US7707859B2 (en) | 2006-08-15 | 2010-05-04 | Whirlpool Corporation | Water supply control for a steam generator of a fabric treatment appliance |
US7665332B2 (en) | 2006-08-15 | 2010-02-23 | Whirlpool Corporation | Steam fabric treatment appliance with exhaust |
US7886392B2 (en) | 2006-08-15 | 2011-02-15 | Whirlpool Corporation | Method of sanitizing a fabric load with steam in a fabric treatment appliance |
US7681418B2 (en) | 2006-08-15 | 2010-03-23 | Whirlpool Corporation | Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor |
US7841219B2 (en) | 2006-08-15 | 2010-11-30 | Whirlpool Corporation | Fabric treating appliance utilizing steam |
US7753009B2 (en) | 2006-10-19 | 2010-07-13 | Whirlpool Corporation | Washer with bio prevention cycle |
US8393183B2 (en) | 2007-05-07 | 2013-03-12 | Whirlpool Corporation | Fabric treatment appliance control panel and associated steam operations |
EP2067537A3 (en) * | 2007-05-29 | 2011-08-31 | Miele & Cie. KG | Device for creating steam in a laundry processing machine and laundry processing machine |
KR101443614B1 (en) * | 2007-08-03 | 2014-09-23 | 엘지전자 주식회사 | Cloth treating apparatus and Controlling method thereof |
KR101366274B1 (en) * | 2007-08-03 | 2014-02-20 | 엘지전자 주식회사 | Laundry Treating Apparatus and Fan assembly |
US7690062B2 (en) | 2007-08-31 | 2010-04-06 | Whirlpool Corporation | Method for cleaning a steam generator |
US8037565B2 (en) | 2007-08-31 | 2011-10-18 | Whirlpool Corporation | Method for detecting abnormality in a fabric treatment appliance having a steam generator |
US7905119B2 (en) | 2007-08-31 | 2011-03-15 | Whirlpool Corporation | Fabric treatment appliance with steam generator having a variable thermal output |
US7966683B2 (en) | 2007-08-31 | 2011-06-28 | Whirlpool Corporation | Method for operating a steam generator in a fabric treatment appliance |
US8555676B2 (en) | 2007-08-31 | 2013-10-15 | Whirlpool Corporation | Fabric treatment appliance with steam backflow device |
US8555675B2 (en) | 2007-08-31 | 2013-10-15 | Whirlpool Corporation | Fabric treatment appliance with steam backflow device |
US7861343B2 (en) * | 2007-08-31 | 2011-01-04 | Whirlpool Corporation | Method for operating a steam generator in a fabric treatment appliance |
US7918109B2 (en) | 2007-08-31 | 2011-04-05 | Whirlpool Corporation | Fabric Treatment appliance with steam generator having a variable thermal output |
KR20090030899A (en) * | 2007-09-21 | 2009-03-25 | 엘지전자 주식회사 | Laundry machine |
JP5107684B2 (en) * | 2007-11-28 | 2012-12-26 | ハイアール グループ コーポレーション | Washing and drying machine |
ES2528184T3 (en) * | 2009-01-19 | 2015-02-05 | Whirlpool Corporation | Washing machine provided with a self-controlled and self-cleaning continuous flow steam generator |
ES2365575B1 (en) | 2009-05-25 | 2012-08-09 | Allglass Confort Systems S.L. | SYSTEM FOR WINDS. |
EP2287390A1 (en) * | 2009-08-18 | 2011-02-23 | BSH Bosch und Siemens Hausgeräte GmbH | Method of operating a steam generator of a laundry appliance, and laundry appliance for performing the method |
KR20110075210A (en) * | 2009-12-28 | 2011-07-06 | 삼성전자주식회사 | Washing machine and steam generator thereof |
US8671488B2 (en) * | 2010-02-03 | 2014-03-18 | Daewoo Electronics Corporation | Steam control device and method of drum washing machine |
KR101848659B1 (en) | 2011-08-22 | 2018-04-13 | 엘지전자 주식회사 | Laundry machine inclduing a steam generator and the controlling method of the same |
US9150997B2 (en) * | 2011-08-22 | 2015-10-06 | Lg Electronics Inc. | Home appliance including steam generator and controlling method of the same |
EP2623662B1 (en) * | 2012-02-06 | 2018-04-04 | LG Electronics Inc. | Laundry machine and control method thereof |
EP2818593B1 (en) * | 2013-06-25 | 2021-09-15 | Electrolux Appliances Aktiebolag | Laundry treatment apparatus having a water reservoir |
PL2826909T3 (en) | 2013-07-19 | 2022-02-14 | Electrolux Appliances Aktiebolag | Method for operating a steam generation unit in a laundry dryer and method of operating a laundry dryer |
KR20150068836A (en) * | 2013-12-12 | 2015-06-22 | 엘지전자 주식회사 | laundry treating machine and the control method of the same |
KR102290758B1 (en) * | 2014-09-29 | 2021-08-18 | 엘지전자 주식회사 | Control Method of Laundry Treating Apparatus |
KR102214069B1 (en) | 2014-09-29 | 2021-02-09 | 엘지전자 주식회사 | Steam Generator and Laundry Treating Apparatus having the same |
CN106622689B (en) * | 2016-11-17 | 2018-11-09 | 江苏智石科技有限公司 | A kind of iron filings deoil the control method of collection system |
US20180135229A1 (en) * | 2016-11-17 | 2018-05-17 | Haier Us Appliance Solutions, Inc. | Washing machine appliance and a method for operating a washing machine appliance |
CN110541270B (en) * | 2019-10-08 | 2021-07-23 | 朱四民 | Medical cleaning equipment |
CN115016411B (en) * | 2022-06-10 | 2023-07-28 | 苏州益盟新材料科技有限公司 | Water supply management regulation and control system for textile post-processing production line |
Family Cites Families (377)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE435088C (en) | 1926-10-07 | Mueller Georg | Drum washing machine | |
DE7340082U (en) | 1975-05-22 | Schaper K | Single drum conveyor washing machine | |
US480037A (en) * | 1892-08-02 | Washing-machine attachment | ||
US382289A (en) * | 1888-05-08 | Steam-washer | ||
US369609A (en) * | 1887-09-06 | Washing-machine | ||
US647112A (en) * | 1897-06-11 | 1900-04-10 | James J Pearson | Composition of cork and rubber for boot-heels, &c. |
US956458A (en) * | 1909-11-03 | 1910-04-26 | John W Walter | Washing-machine. |
GB191010792A (en) | 1910-05-02 | 1911-04-27 | Arthur Ernest Roberts | A New or Improved Method of and Means for Bleaching Textile Fabrics and the like. |
GB191022943A (en) | 1910-10-04 | 1911-08-10 | William August Edwin Henrici | Improvements in Processes for Washing and Drying Clothes or other Textile Materials. |
GB191024005A (en) | 1910-10-17 | 1911-10-05 | William August Edwin Henrici | Improvements in Power Washing Machines. |
GB191010567A (en) | 1910-10-29 | 1911-04-13 | Harold Symonds | Improvements in Washing Machines. |
GB191103554A (en) | 1911-02-13 | 1911-12-07 | Frank Perceval | An Improved Power Machine for Washing, Boiling and Rinsing Foul Linen and Clothes, and for Laundry Purposes generally. |
US1089179A (en) * | 1913-02-08 | 1914-03-03 | Lloyd Lawrence & Co | Sprinkler for lawns, golf-greens, gardens, and the like. |
US1089334A (en) | 1913-04-19 | 1914-03-03 | Joseph Richard Dickerson | Steam washing-machine. |
GB102466A (en) | 1916-08-07 | 1916-12-07 | Walter Herbert | Improvements in or relating to Washing and Disinfecting Apparatus. |
DE427025C (en) | 1924-03-30 | 1926-03-22 | Arnold Kaegi | For washing and drying laundry, etc. Like. Usable machine |
US1616372A (en) * | 1924-10-06 | 1927-02-01 | Janson Edwin | Boiler-clean-out device |
US1852179A (en) | 1926-05-11 | 1932-04-05 | Thomas J Mcdonald | Steam washing machine |
DE479594C (en) | 1926-06-02 | 1929-07-23 | Charles Laroche | Washing machine |
GB285384A (en) | 1927-02-14 | 1928-11-08 | Pierre Diebold | Improvements in or relating to washing machines |
US1676763A (en) * | 1927-09-12 | 1928-07-10 | Frank A Anetsberger | Humidifying apparatus |
GB397236A (en) | 1932-03-30 | 1933-08-24 | William Herbert Nield | Improvements in laundering machines |
US2314332A (en) * | 1936-06-10 | 1943-03-23 | Donald K Ferris | Apparatus for washing articles |
DE668963C (en) | 1937-02-11 | 1938-12-14 | Hedwig Wolfsholz Geb Weinert | Device for washing etc. of laundry of all kinds |
US2217705A (en) | 1937-05-05 | 1940-10-15 | Hobart Mfg Co | Washing machine |
US2434476A (en) * | 1946-04-19 | 1948-01-13 | Ind Patent Corp | Combined dryer and automatic washer |
GB685813A (en) | 1950-02-28 | 1953-01-14 | Electrolux Ab | Improvements in heating devices for washing boilers and like liquid heaters |
DE853433C (en) | 1951-04-10 | 1952-10-23 | Poensgen G M B H Geb | Counter-current washing machine |
DE894685C (en) | 1951-11-03 | 1953-10-26 | Erich Sulzmann | Process for washing textile fabrics in countercurrent |
US2845786A (en) * | 1952-10-15 | 1958-08-05 | Intercontinental Mfg Company I | Cleaning apparatus |
US2778212A (en) | 1953-01-21 | 1957-01-22 | Gen Electric | Water load responsive diaphragm operated control device for clothes washers |
US2881609A (en) * | 1953-11-16 | 1959-04-14 | Gen Motors Corp | Combined clothes washing machine and dryer |
US2800010A (en) * | 1954-11-26 | 1957-07-23 | Hoover Co | Clothes dryers |
US2966052A (en) * | 1955-11-17 | 1960-12-27 | Whirlpool Co | Laundry machine and method |
DE1017129B (en) | 1956-02-03 | 1957-10-10 | Erich Sulzmann | Method of washing and rinsing in flow washing machines |
GB835250A (en) | 1956-03-12 | 1960-05-18 | James Armstrong & Co Ltd | Improvements in a method of washing and in washing machines |
DE1148517B (en) * | 1956-07-23 | 1963-05-16 | A Michaelis G M B H Maschf | Drum washing machine |
GB881083A (en) | 1957-03-22 | 1961-11-01 | Emile D Hooge S P R L Atel Con | Control device |
DE1847016U (en) | 1959-04-24 | 1962-02-22 | Siemens Elektrogeraete Gmbh | WASHING MACHINE WITH CONDENSER. |
US3035145A (en) * | 1959-11-02 | 1962-05-15 | John Metzger | Humidifier |
GB889500A (en) | 1960-01-01 | 1962-02-14 | J W Lightburn & Son Ltd | Improvements in or relating to washing machines |
US3060713A (en) * | 1960-11-04 | 1962-10-30 | Whirlpool Co | Washing machine having a liquid balancing means |
US3223108A (en) * | 1962-08-21 | 1965-12-14 | Whirlpool Co | Control for laundry apparatus |
DE1873622U (en) | 1963-01-15 | 1963-06-12 | Bernhard Vehns | HEATING DEVICE FOR WASHING MACHINE. |
US3234571A (en) | 1963-11-05 | 1966-02-15 | Ametek Inc | Laundry machines |
GB1155268A (en) | 1965-07-26 | 1969-06-18 | Boilers Ltd | Improvements in Boilers. |
US3347066A (en) * | 1966-09-15 | 1967-10-17 | Alvin S Klausner | Washing machine or the like with adjustable programming controls |
GB1242415A (en) * | 1968-05-15 | 1971-08-11 | Calomax Engineers Ltd | Improvements in or relating to humidifying apparatus |
US3498091A (en) | 1968-06-07 | 1970-03-03 | Whirlpool Co | Pressure responsive switch having automatic reset means |
US3550170A (en) | 1968-09-26 | 1970-12-29 | Maytag Co | Method and apparatus for fabric cool down |
CH503828A (en) | 1970-01-14 | 1971-02-28 | Held Gottfried | Process for treating laundry and washing machine for carrying out the process |
US3697727A (en) | 1970-07-02 | 1972-10-10 | Ohio Decorative Products Inc | Open coil electric heater |
US3712089A (en) * | 1971-07-28 | 1973-01-23 | Ellis Corp | Commercial laundry machine and releasable connections therefor |
US3707855A (en) | 1971-09-09 | 1973-01-02 | Mc Graw Edison Co | Garment finishing combination |
DE2202345C3 (en) | 1972-01-19 | 1975-03-13 | Erich Campione D'italia Como Sulzmann (Italien) | Single drum washing machine |
CH564633A5 (en) | 1972-03-21 | 1975-07-31 | Henzirohs L Jura Elektroappara | |
DE2226373A1 (en) | 1972-05-31 | 1973-12-20 | Poensgen Gmbh Geb | PROCEDURE FOR CONTINUOUS WASHING OF LAUNDRY |
GB1352955A (en) | 1972-06-13 | 1974-05-15 | Forst Waeschereimaschbau Veb | Washing machines |
US3869815A (en) * | 1972-06-29 | 1975-03-11 | Cissell Mfg | Garment finishing apparatus |
US3830241A (en) | 1972-08-07 | 1974-08-20 | Kendall & Co | Vented adapter |
DE2245532A1 (en) | 1972-09-16 | 1974-03-21 | Goedecker B J Maschf | Web treating tumbler drum machine - with control of liquid supply to drum for washing, dyeing, rinsing, or spinning |
US3890987A (en) * | 1973-06-04 | 1975-06-24 | Whirlpool Co | Washing apparatus with auxiliary distributor |
US3935719A (en) * | 1973-08-06 | 1976-02-03 | A-T-O Inc. | Recirculating |
DE2401296B2 (en) * | 1974-01-11 | 1980-10-30 | Boewe Maschinenfabrik Gmbh, 8900 Augsburg | Method and device for cleaning and then washing clothes, laundry or the like |
DE2410107C3 (en) | 1974-03-02 | 1979-01-18 | Hermann Zanker Kg, Maschinen- Und Metallwarenfabrik, 7400 Tuebingen | Washer with condenser |
US4020396A (en) * | 1975-02-07 | 1977-04-26 | Westinghouse Electric Corporation | Time division multiplex system for a segregated phase comparison relay system |
SE388571B (en) * | 1975-02-24 | 1976-10-11 | Bergkvist Lars A | DEVICE FOR CLEANING THE VEHICLE WINDSCREEN, STRALKASTARGLASS, REAR MIRROR, REFLEXDON E D |
JPS51117205A (en) | 1975-04-04 | 1976-10-15 | Strobel & Soehne Gmbh & Co J | Steam generating machine |
DE2533759C3 (en) | 1975-07-29 | 1981-05-07 | Leopold 6700 Ludwigshafen Anderl | Device for treating waste water from large laundries, breweries or the like. |
US4034583A (en) * | 1976-03-03 | 1977-07-12 | Firma Vosswerk Gmbh | Washing machines |
DE2659079C3 (en) * | 1976-12-27 | 1979-08-09 | Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart | Display device for the degree of calcification of water heaters in electric household appliances, in particular electric coffee machines |
US4108000A (en) * | 1977-05-05 | 1978-08-22 | Jenor | Gauge glass protector |
JPS5468072A (en) | 1977-11-09 | 1979-05-31 | Sanyo Electric Co Ltd | Washing machine |
AT358182B (en) | 1978-07-28 | 1980-08-25 | Ver Edelstahlwerke Ag | VAPORIZED STERILIZER FOR LAUNDRY, FABRICS, INSTRUMENTS OR THE LIKE |
US4373430A (en) | 1978-10-02 | 1983-02-15 | Oscar Lucks Company | Humidifier for a proof box |
US4207683A (en) * | 1979-02-01 | 1980-06-17 | Horton Roberta J | Clothes dryer |
FR2581442B2 (en) | 1979-08-03 | 1988-05-13 | Brenot Claude | DIRECT EVAPORATION STEAM GENERATOR |
DE2940217C2 (en) * | 1979-10-04 | 1984-05-17 | Mewa Mechanische Weberei Altstadt Gmbh, 6200 Wiesbaden | Method for dewatering laundry and dewatering device |
DE3162025D1 (en) | 1980-06-28 | 1984-03-01 | Hoesch Werke Ag | Method of washing laundry, and washing machine with drum for performing the method |
DE3103529A1 (en) | 1981-02-03 | 1982-08-26 | Wilh. Cordes GmbH & Co Maschinenfabrik, 4740 Oelde | Pressing machine or laundry mangle with a device for generating steam |
DE3139466A1 (en) | 1981-10-03 | 1983-04-21 | Meiko Maschinen- Und Apparatebau, Ingenieur Oskar Meier Gmbh & Co, 7600 Offenburg | Backflow preventer |
US4489574A (en) * | 1981-11-10 | 1984-12-25 | The Procter & Gamble Company | Apparatus for highly efficient laundering of textiles |
FR2525645A1 (en) | 1982-04-23 | 1983-10-28 | Thomson Brandt | Washing machine using spray wetting instead of sump immersion - to reduce water usage and heat input per kg laundry |
US4496473A (en) | 1982-04-27 | 1985-01-29 | Interox Chemicals Limited | Hydrogen peroxide compositions |
DE3230764C2 (en) | 1982-08-16 | 1985-04-04 | Jörg 8500 Nürnberg Danneberg | Process for finishing and / or drying textile pieces |
DE3475826D1 (en) | 1983-07-18 | 1989-02-02 | Elwatt Srl | Improvements in steam generators for use with electrodomestic appliances such as a steam iron |
IT1164324B (en) | 1983-07-27 | 1987-04-08 | Eurodomestici Ind Riunite | DEVICE FOR THE ABATEMENT OF STEAM IN DOMESTIC WASHING MACHINES |
JPS60138399A (en) | 1983-12-27 | 1985-07-23 | Yamato Scient Co Ltd | Method of cleaning boiler using ceramic heater |
DE3408136A1 (en) | 1984-03-06 | 1985-09-19 | Passat-Maschinenbau Gmbh, 7100 Heilbronn | Process and appliance for the treatment of textiles |
EP0217981A1 (en) | 1985-07-25 | 1987-04-15 | Richard O. Kaufmann | Continuous flow laundry system and method |
JPS61128995A (en) | 1984-11-26 | 1986-06-17 | 三洋電機株式会社 | Washing machine |
DE3501008A1 (en) | 1985-01-14 | 1986-07-17 | Robert 8027 Neuried Weigl | Pressureless continuous-flow steam generator with a preheater |
US4646630A (en) * | 1985-03-25 | 1987-03-03 | The Lucks Company | Humidifier assembly |
JPS6266891A (en) | 1985-09-19 | 1987-03-26 | 三洋電機株式会社 | Washing machine |
DD241941B1 (en) | 1985-10-21 | 1989-04-26 | Berlin Oberbekleidung | SAFETY DEVICE FOR A TRANSPORTABLE SMALL STEAM GENERATOR |
IT1187300B (en) | 1985-11-06 | 1987-12-23 | Zanussi Elettrodomestici | WASHING MACHINE |
US4784666A (en) * | 1986-08-08 | 1988-11-15 | Whirlpool Corporation | High performance washing process for vertical axis automatic washer |
JPS6375167A (en) * | 1986-09-12 | 1988-04-05 | 落合 宏通 | Method for finish processing of clothing |
EP0280782A1 (en) | 1987-02-03 | 1988-09-07 | E. Schönmann & Co. AG | Steam generator |
DE8703344U1 (en) | 1987-03-05 | 1988-07-07 | Schaper, Karl, 3203 Sarstedt, De | |
EP0284554B1 (en) | 1987-03-27 | 1991-08-14 | Maschinenfabrik Ad. Schulthess & Co.AG. | Washing method and tunnel type washing machine |
US4777682A (en) | 1987-04-23 | 1988-10-18 | Washex Machinery Corporation | Integral water and heat reclaim system for a washing machine |
DE3715059C1 (en) * | 1987-05-06 | 1988-08-18 | Rowenta Werke Gmbh | Steam iron |
US4809597A (en) * | 1987-05-15 | 1989-03-07 | Lin Shui T | Circulatory system sterilizer |
JPH0629652B2 (en) * | 1987-07-13 | 1994-04-20 | 株式会社荏原製作所 | Combustion control device in fluidized bed boiler |
ES2032784T3 (en) | 1987-08-01 | 1993-03-01 | Elena Ronchi | INSTANT STEAM GENERATOR FOR DOMESTIC AND PROFESSIONAL USE. |
FR2625794B1 (en) * | 1988-01-08 | 1990-05-04 | Bourgeois Ste Coop Production | WATER VAPOR GENERATOR FOR COOKING APPLIANCE |
US5212969A (en) * | 1988-02-23 | 1993-05-25 | Mitsubishi Jukogyo Kabushiki Kaisha | Drum type washing apparatus and method of processing the wash using said apparatus |
EP0548064B1 (en) * | 1988-02-23 | 1998-04-08 | Mitsubishi Jukogyo Kabushiki Kaisha | Drum type washing apparatus |
ES2007913A6 (en) | 1988-06-09 | 1989-07-01 | Balay Sa | Rinsing system for automatic washing machine |
US4870763A (en) | 1988-07-22 | 1989-10-03 | Sunbeam Corporation | Multi-port steam chamber metering valve for steam iron |
JPH0249700A (en) | 1988-08-11 | 1990-02-20 | Matsushita Electric Ind Co Ltd | Steam generator |
US5032186A (en) * | 1988-12-27 | 1991-07-16 | American Sterilizer Company | Washer-sterilizer |
DE8901904U1 (en) * | 1989-02-17 | 1989-07-20 | Lechmetall Landsberg Gmbh, 8910 Landsberg, De | |
EP0384200B1 (en) | 1989-02-23 | 1993-09-22 | Asea Brown Boveri Ag | Steam condenser |
IT1230907B (en) | 1989-06-23 | 1991-11-08 | Ocean Spa | PERFECTED WASHING MACHINE |
US5063609A (en) * | 1989-10-11 | 1991-11-05 | Applied Materials, Inc. | Steam generator |
IT221382Z2 (en) * | 1989-12-01 | 1994-03-16 | Zanussi A Spa Industrie | STEAM CONDENSING DEVICE FOR LINEN MACHINES OR COMBINED MACHINES FOR WASHING AND DRYING LINEN |
US4987627A (en) * | 1990-01-05 | 1991-01-29 | Whirlpool Corporation | High performance washing process for vertical axis automatic washer |
US5154197A (en) | 1990-05-18 | 1992-10-13 | Westinghouse Electric Corp. | Chemical cleaning method for steam generators utilizing pressure pulsing |
JP2840428B2 (en) | 1990-10-22 | 1998-12-24 | 三洋電機株式会社 | Fully automatic washing machine |
EP0674756A1 (en) | 1991-02-26 | 1995-10-04 | Valvtec Pty Ltd | Assembly for prevention of backflow in valves |
US5193491A (en) * | 1991-04-01 | 1993-03-16 | Delaware Capital Formation, Inc. | Cleaning system for boiler |
IT224189Z2 (en) | 1991-04-10 | 1996-02-09 | C Ar El Costruzione Armadi Ele | EQUIPMENT FOR THE PRODUCTION OF STEAM FOR AIR HUMIDIFICATION |
DE4116673A1 (en) | 1991-05-22 | 1992-11-26 | Licentia Gmbh | Wetting washing in program-controlled washing machine - by initially bringing drum filled with washing to specified speed, filling with water and reducing drum rotation speed |
KR930006264Y1 (en) * | 1991-05-25 | 1993-09-17 | 삼성전자 주식회사 | Opening & shutting device for washing machine |
KR930004677Y1 (en) * | 1991-06-11 | 1993-07-22 | 삼성전자 주식회사 | The water tank cover for washing machine having a heater |
KR950009229Y1 (en) * | 1991-10-16 | 1995-10-23 | 삼성전자 주식회사 | Supplying water device of washing machine |
ES2074970T3 (en) | 1991-10-25 | 1997-05-16 | Unilever Nv | DETERGENT DIFFUSER. |
US5199455A (en) | 1991-11-27 | 1993-04-06 | Chardon Rubber Company | Anti-siphon device for drain conduits |
US5219370A (en) * | 1992-01-02 | 1993-06-15 | Whirlpool Corporation | Tumbling method of washing fabric in a horizontal axis washer |
US5152252A (en) * | 1992-01-23 | 1992-10-06 | Autotrol Corporation | Water treatment control system for a boiler |
US5172888A (en) | 1992-02-07 | 1992-12-22 | Westinghouse Electric Corp. | Apparatus for sealingly enclosing a check valve |
US5172654A (en) * | 1992-02-10 | 1992-12-22 | Century Controls, Inc. | Microprocessor-based boiler controller |
FR2688807B1 (en) | 1992-03-20 | 1994-07-01 | Superba Sa | STEAM IRONING APPARATUS PROVIDED WITH A SCALE DETECTION AND SUPPRESSION DEVICE. |
US5219371A (en) * | 1992-03-27 | 1993-06-15 | Shim Kyong S | Dry cleaning system and method having steam injection |
DE69314636T2 (en) * | 1992-05-26 | 1998-04-09 | Vos Ind Pty Ltd | COOKER |
FR2692290B1 (en) | 1992-06-12 | 1995-07-07 | Seb Sa | IRON COMPRISING AN ANTI-SCALE MAGNETIC ELEMENT. |
JPH05346485A (en) | 1992-06-15 | 1993-12-27 | Hitachi Ltd | Built-in pump of reactor |
IT226767Z2 (en) | 1992-07-13 | 1997-07-01 | Whirlpool Italia | DEVICE TO IMPROVE THE SENDING OF DETERGENT IN A TANK OF A WASHING MACHINE SCRUBBER OR SIMILAR |
DE4225847C2 (en) | 1992-08-05 | 1997-07-10 | Kaercher Gmbh & Co Alfred | Mobile washing station for textiles |
US5345637A (en) * | 1993-04-27 | 1994-09-13 | Whirlpool Corporation | High performance washing system for a horizontal axis washer |
FR2708636B1 (en) | 1993-08-06 | 1996-02-02 | Moulinex Sa | Steam generator for iron. |
CA2142685A1 (en) | 1994-02-22 | 1995-08-23 | Dale E. Mueller | Method of washing in a vertical axis washer |
IT234928Y1 (en) | 1994-03-15 | 2000-03-20 | Interpump Spa | DOMESTIC STEAM CLEANER. |
DE4413213A1 (en) | 1994-04-15 | 1995-10-19 | Senkingwerk Gmbh Kg | Operating continuous washing plant |
JPH0866591A (en) * | 1994-08-31 | 1996-03-12 | Toshiba Corp | Fully automatic washer |
MY115384A (en) * | 1994-12-06 | 2003-05-31 | Sharp Kk | Drum type washing machine and drier |
DE4443338C1 (en) | 1994-12-06 | 1996-06-05 | Miele & Cie | Heating device for washing machines |
IT1275186B (en) | 1995-02-10 | 1997-07-30 | Candy Spa | WASHING PROCEDURE FOR WASHING MACHINE |
US5619983A (en) * | 1995-05-05 | 1997-04-15 | Middleby Marshall, Inc. | Combination convection steamer oven |
US6094523A (en) | 1995-06-07 | 2000-07-25 | American Sterilizer Company | Integral flash steam generator |
IT1277413B1 (en) | 1995-08-02 | 1997-11-10 | Candy Spa | DEVICE FOR LIMITING STEAM OUTPUT FROM A WASHING MACHINE |
BE1009718A6 (en) | 1995-10-20 | 1997-07-01 | Peeters Tom Walter | Washing machine. |
JPH09133305A (en) | 1995-11-10 | 1997-05-20 | Mitsubishi Heavy Ind Ltd | Asymmetrical branch pipe apparatus for boiler |
IT1282275B1 (en) * | 1995-12-06 | 1998-03-16 | Electrolux Zanussi Elettrodome | WASHING MACHINE WITH LOW CONSUMPTION RINSE CYCLES |
GB2309071A (en) | 1996-01-10 | 1997-07-16 | Ngai Shing Dev Limited | Steam generator |
FR2743823B1 (en) | 1996-01-19 | 1998-02-27 | Seb Sa | HOUSEHOLD APPLIANCE WITH STEAM COMPRISING AN ANTI-SCALE DEVICE |
FR2745896B1 (en) * | 1996-03-07 | 1998-04-24 | Armines | METHOD AND INSTALLATION FOR DRYING A MASS OF WET FIBROUS MATERIAL, IN PARTICULAR A LAUNDRY MASS |
US5815637A (en) * | 1996-05-13 | 1998-09-29 | Semifab Corporation | Humidifier for control of semi-conductor manufacturing environments |
DE19620512A1 (en) | 1996-05-22 | 1997-11-27 | Miele & Cie | Program-controlled washing machine |
FR2750709B1 (en) | 1996-07-05 | 1998-10-30 | Esswein Sa | HEATING METHOD AND DEVICE FOR A DRYING WASHING MACHINE |
IT1288957B1 (en) | 1996-07-26 | 1998-09-25 | Esse 85 Srl | STEAM GENERATOR FOR IRON OR SIMILAR |
US5732664A (en) * | 1996-08-30 | 1998-03-31 | Badeaux, Jr.; Joseph W. | Boiler control system |
JP3907770B2 (en) | 1997-02-25 | 2007-04-18 | 東静電気株式会社 | Method and apparatus for reclaiming futons |
DE29707168U1 (en) | 1997-04-11 | 1997-06-12 | Ingbuero H Hoerich Umwelttechn | Facility for recycling washing water from laundries |
US6045588A (en) | 1997-04-29 | 2000-04-04 | Whirlpool Corporation | Non-aqueous washing apparatus and method |
IT1297843B1 (en) * | 1997-05-06 | 1999-12-20 | Imetec Spa | DOMESTIC STABILIZED BOILER WATER LEVEL ELECTRIC GENERATOR, ESPECIALLY FOR IRONS. |
DE19730422A1 (en) | 1997-07-16 | 1999-01-21 | Aeg Hausgeraete Gmbh | Wetting laundry items in program-controlled washing machine |
JPH1147488A (en) | 1997-07-31 | 1999-02-23 | Mitsubishi Heavy Ind Ltd | Water saving tank drier of washing and drying machine and water saving tank drying method for washing and drying machine |
DE19736794C2 (en) | 1997-08-23 | 2000-04-06 | Whirlpool Co | Dishwasher with lower and upper spray arm and a circulation pump |
JP3182382B2 (en) * | 1997-09-10 | 2001-07-03 | 三洋電機株式会社 | Centrifugal dehydrator |
DE19742282C1 (en) | 1997-09-25 | 1999-02-11 | Miele & Cie | Program controlled laundry appliance |
DE19743508A1 (en) | 1997-10-01 | 1999-04-08 | Bosch Siemens Hausgeraete | Heating washing solution in washing machine |
DE19751028C2 (en) | 1997-11-19 | 2001-12-06 | Miele & Cie | Procedure for carrying out a hygiene program |
JPH11164980A (en) | 1997-12-04 | 1999-06-22 | Osaka Gas Co Ltd | Drum type fully-automatic washing and drying machine |
JPH11164979A (en) | 1997-12-04 | 1999-06-22 | Osaka Gas Co Ltd | Drum type fully-automatic washing and drying machine |
KR100494256B1 (en) | 1998-04-28 | 2005-06-13 | 마츠시타 덴끼 산교 가부시키가이샤 | Iron |
DE69910171T2 (en) | 1998-09-22 | 2004-06-17 | Koninklijke Philips Electronics N.V. | STEAM IRON WITH SCALING INDICATOR |
JP4354558B2 (en) | 1998-12-16 | 2009-10-28 | 有限会社ネオフィールド | Cleaning method and cleaning device |
DE19903951B4 (en) | 1999-02-02 | 2013-11-14 | Fritz Eichenauer Gmbh & Co. Kg | Heatable pump housing for liquid heating |
GB2358641B (en) | 1999-03-25 | 2002-10-09 | John Herbert North | Improved washing machine |
DE60022173T2 (en) | 1999-03-25 | 2006-02-16 | John Herbert North | Washing machine |
US6460381B1 (en) | 1999-03-29 | 2002-10-08 | Sanyo Electric Co., Ltd. | Washing machine or an apparatus having a rotatable container |
AU4600400A (en) | 1999-04-22 | 2001-05-08 | Eltek S.P.A. | Household appliance using water, namely a washing machine, with improved device for softening the water |
TW484139B (en) | 1999-06-18 | 2002-04-21 | Siemens Power Corp | Method for the inspection of steam generator tubing utilizing nonaxisymetric guided waves |
SE521337C2 (en) | 1999-08-09 | 2003-10-21 | Electrolux Ab | Textile washing machine with steam drying |
US6327730B1 (en) | 1999-12-08 | 2001-12-11 | Maytag Corporation | Adjustable liquid temperature control system for a washing machine |
GB9930695D0 (en) | 1999-12-24 | 2000-02-16 | Unilever Plc | Composition and method for bleaching a substrate |
DE20001650U1 (en) | 2000-01-31 | 2000-03-23 | Chen Chung Ming | Vapor-emitting cleaning device |
EP1269072B1 (en) | 2000-03-30 | 2006-07-12 | IMETEC S.p.A. | Household steam generator apparatus |
US6885813B2 (en) | 2000-03-31 | 2005-04-26 | De'longhi S.P.A. | Disposable steam generator for domestic steam appliances |
ES2215514T3 (en) | 2000-04-22 | 2004-10-16 | Eugster/Frismag Ag | INJECTION STEAM GENERATOR FOR SMALL APPLIANCES. |
US6845290B1 (en) | 2000-05-02 | 2005-01-18 | General Electric Company | System and method for controlling a dryer appliance |
US6691536B2 (en) | 2000-06-05 | 2004-02-17 | The Procter & Gamble Company | Washing apparatus |
US7021087B2 (en) | 2000-06-05 | 2006-04-04 | Procter & Gamble Company | Methods and apparatus for applying a treatment fluid to fabrics |
DE10035904B4 (en) | 2000-06-16 | 2010-07-08 | Pharmagg Systemtechnik Gmbh | Apparatus for the wet treatment of laundry |
DE10028944B4 (en) | 2000-06-16 | 2016-01-28 | Herbert Kannegiesser Gmbh | Method and apparatus for wet treatment of laundry |
US6434857B1 (en) | 2000-07-05 | 2002-08-20 | Smartclean Jv | Combination closed-circuit washer and drier |
DE10043165C2 (en) | 2000-07-25 | 2003-10-30 | B I M Textil Mietservice Betr | Circulation process for environmentally friendly cleaning of contaminated textiles, especially industrial cleaning cloths with solvent residues |
AU2001280787A1 (en) * | 2000-07-25 | 2002-02-05 | Steiner-Atlantic Corp. | Textile cleaning processes and apparatuses |
DE10039904B4 (en) | 2000-08-16 | 2005-12-15 | Senkingwerk Gmbh | Method for washing laundry in a tankless washing line and washing line for carrying out the method |
US6789404B2 (en) | 2000-09-20 | 2004-09-14 | Samsung Electronics Co., Ltd | Washing machine and controlling method therof |
DE10109247B4 (en) | 2001-02-26 | 2004-07-08 | Rational Ag | Device and method for cleaning a cooking device |
JP2003019382A (en) | 2001-07-09 | 2003-01-21 | Mitsubishi Electric Corp | Washing machine |
CH695383A5 (en) | 2001-07-10 | 2006-04-28 | V Zug Ag | Dryer or washing machine with steamer. |
EP1421233A2 (en) | 2001-07-28 | 2004-05-26 | John Herbert North | Improvements in and relating to washing machines |
GB0118472D0 (en) * | 2001-07-28 | 2001-09-19 | North John H | Improvements in and relating to washing machines |
RU2224967C2 (en) | 2001-08-09 | 2004-02-27 | Сидоренко Борис Револьдович | Evaporative chamber of contour heating pipe |
JP4784029B2 (en) | 2001-09-21 | 2011-09-28 | パナソニック株式会社 | Washing machine |
IL147526A0 (en) | 2002-01-08 | 2002-08-14 | Frum Hanan | A fabric treatment system |
EP1351016B1 (en) | 2002-04-02 | 2009-10-07 | Masami Nomura | Superheated steam generator |
US6622529B1 (en) | 2002-04-15 | 2003-09-23 | Nicholas J. Crane | Apparatus for heating clothes |
JP2003311084A (en) | 2002-04-18 | 2003-11-05 | Matsushita Electric Ind Co Ltd | Washing machine |
DE10312163A1 (en) | 2002-04-19 | 2003-11-06 | Heinrich Anton Kamm | Industrial machine for washing woven textile fabrics has series of wash, rinse and drying drums through which material passes and soiled water is evaporated and condensed for reuse |
JP3991759B2 (en) | 2002-04-23 | 2007-10-17 | 松下電器産業株式会社 | Dry washing machine |
JP4264798B2 (en) | 2002-04-26 | 2009-05-20 | 三菱電機株式会社 | Cleaning device and home appliances using the cleaning device |
JP4163445B2 (en) | 2002-05-09 | 2008-10-08 | 日立アプライアンス株式会社 | Washing and drying machine |
JP3867637B2 (en) | 2002-07-30 | 2007-01-10 | 松下電器産業株式会社 | Steam generating device and cooking device provided with steam generating device |
JP2004121666A (en) | 2002-10-04 | 2004-04-22 | Takara Belmont Co Ltd | Heater control method in steam generator for hairdressing |
TWI294473B (en) | 2002-10-16 | 2008-03-11 | Matsushita Electric Ind Co Ltd | Washing and drying machine |
JP2004167131A (en) | 2002-11-22 | 2004-06-17 | Matsushita Electric Ind Co Ltd | Washing machine |
US20040163184A1 (en) * | 2002-12-09 | 2004-08-26 | Royal Appliance Mfg. | Clothes de-wrinkler and deodorizer |
DE10260151A1 (en) | 2002-12-20 | 2004-07-01 | BSH Bosch und Siemens Hausgeräte GmbH | Clothes dryer and process for removing odors from textiles |
DE10260163A1 (en) | 2002-12-20 | 2004-07-08 | BSH Bosch und Siemens Hausgeräte GmbH | dishwasher |
DE10301450A1 (en) | 2003-01-09 | 2004-07-22 | Hansgrohe Ag | Device for generating steam and process for cleaning and operating the same |
EP1441059B1 (en) | 2003-01-25 | 2012-01-18 | Electrolux Home Products Corporation N.V. | Process for treating fabrics in a domestic laundry dryer |
DE10302972B4 (en) | 2003-01-25 | 2007-03-08 | Electrolux Home Products Corporation N.V. | Method and device for generating steam for laundry care |
KR100517612B1 (en) * | 2003-03-31 | 2005-09-28 | 엘지전자 주식회사 | Drum washer by spray steam |
KR100517613B1 (en) | 2003-03-31 | 2005-09-28 | 엘지전자 주식회사 | Drum washer by spray steam |
KR100510680B1 (en) * | 2003-03-31 | 2005-08-31 | 엘지전자 주식회사 | Drum washer by spray steam |
KR100504501B1 (en) * | 2003-04-14 | 2005-08-02 | 엘지전자 주식회사 | Drum washer's washing method by spray steam |
US7584633B2 (en) | 2003-04-14 | 2009-09-08 | Lg Electronics Inc. | Spray type drum washing machine |
WO2004091359A2 (en) | 2003-04-15 | 2004-10-28 | Kleker Richard G | Apparatus for washing and drying garments |
US7235109B2 (en) | 2004-04-12 | 2007-06-26 | Kleker Richard G | Apparatus for processing garments including a water and air system |
US7168274B2 (en) | 2003-05-05 | 2007-01-30 | American Dryer Corporation | Combination washer/dryer having common heat source |
DE10328071B4 (en) | 2003-06-23 | 2019-01-31 | BSH Hausgeräte GmbH | Process for cleaning water-carrying household cleaning appliances |
US20040261194A1 (en) | 2003-06-27 | 2004-12-30 | The Procter & Gamble Company | Fabric article treating system |
KR20050015758A (en) | 2003-08-07 | 2005-02-21 | 삼성전자주식회사 | Drum Type Washing Machine And Controlling Method The Same |
KR20050017655A (en) | 2003-08-08 | 2005-02-22 | 삼성전자주식회사 | Drum washing machine and control method thereof |
KR100540749B1 (en) | 2003-08-13 | 2006-01-10 | 엘지전자 주식회사 | Steam generator for drum-type washing machine |
KR100531379B1 (en) | 2003-08-13 | 2005-11-28 | 엘지전자 주식회사 | Method for smoothing wrinkles of laundry in Drum-type washing machine |
KR100500887B1 (en) | 2003-08-13 | 2005-07-14 | 엘지전자 주식회사 | Apparatus for generating steam in Drum-type washing machine and method of the same |
KR100666318B1 (en) * | 2003-08-13 | 2007-01-10 | 엘지전자 주식회사 | Steam generator for drum-type washing machine |
KR20050017481A (en) | 2003-08-13 | 2005-02-22 | 엘지전자 주식회사 | Drum-type washing machine with steam generator |
KR20050017490A (en) | 2003-08-13 | 2005-02-22 | 엘지전자 주식회사 | Method for generating steam in Drum-type washing machine |
US7406842B2 (en) * | 2003-08-13 | 2008-08-05 | Lg Electronics Inc. | Washing machine |
WO2005018837A1 (en) | 2003-08-23 | 2005-03-03 | Technoscience Integrated Technology Appliances Pte Ltd | A portable sanitizer |
US7096828B2 (en) | 2003-08-29 | 2006-08-29 | American Griddle Corporation | Self cleaning boiler and steam generator |
US7213541B2 (en) | 2003-08-29 | 2007-05-08 | Lunaire Limited | Steam generating method and apparatus for simulation test chambers |
US7600402B2 (en) * | 2003-11-04 | 2009-10-13 | Lg Electronics Inc. | Washing apparatus and control method thereof |
KR101003358B1 (en) | 2003-12-16 | 2010-12-23 | 삼성전자주식회사 | Washing machine |
KR101003359B1 (en) | 2003-12-23 | 2010-12-28 | 삼성전자주식회사 | Drum type washing machine and washing method thereof |
KR20050065722A (en) | 2003-12-23 | 2005-06-30 | 삼성전자주식회사 | Washing machine and control method thereof |
KR20050065721A (en) | 2003-12-23 | 2005-06-30 | 삼성전자주식회사 | Washing machine |
US20050144737A1 (en) | 2003-12-30 | 2005-07-07 | Roepke Jon A. | Clothes washer additive dispenser apparatus and method |
KR20050072294A (en) | 2004-01-06 | 2005-07-11 | 삼성전자주식회사 | Washing machine and control method thereof |
KR101022226B1 (en) | 2004-01-06 | 2011-03-17 | 삼성전자주식회사 | Washing Machine And Control Method Thereof |
AU2005200379B2 (en) | 2004-02-06 | 2011-02-24 | Lg Electronics Inc. | Structure for blocking outflow of fluid for washing machine |
JP3722820B2 (en) | 2004-02-27 | 2005-11-30 | シャープ株式会社 | Steam cooker |
US20050205482A1 (en) | 2004-03-16 | 2005-09-22 | Gladney William R | Water filter for clothes washing machine |
JP4724426B2 (en) | 2004-03-30 | 2011-07-13 | シチズンホールディングス株式会社 | Gas sensor sensing element and catalytic combustion gas sensor |
KR100629332B1 (en) | 2004-04-07 | 2006-09-29 | 엘지전자 주식회사 | Washing machine with dryer and the control method of the same |
CN2682887Y (en) * | 2004-04-08 | 2005-03-09 | 佑鑫实业股份有限公司 | Music shoes with multiple playing keys |
KR100629333B1 (en) | 2004-04-09 | 2006-09-29 | 엘지전자 주식회사 | Heating Apparatus of Washing Machine and Washing Method |
JP4030523B2 (en) | 2004-05-12 | 2008-01-09 | 三洋電機株式会社 | Washing machine |
KR100595555B1 (en) | 2004-05-13 | 2006-07-03 | 엘지전자 주식회사 | Steam injection type washing machine and temperature correction method thereof |
KR20050112232A (en) | 2004-05-25 | 2005-11-30 | 삼성전자주식회사 | A washer equipping a deodorization means and control method thereof |
DE602005019230D1 (en) | 2004-05-31 | 2010-03-25 | Lg Electronics Inc | OPERATING METHOD OF A WASHING DEVICE |
WO2005118944A1 (en) | 2004-06-02 | 2005-12-15 | Koninklijke Philips Electronics N.V. | Steam generator having at least one spiral-shaped steam channel and at least one flat resistive heating element |
WO2006001612A1 (en) | 2004-06-23 | 2006-01-05 | Lg Electronics Inc. | Washing machine and method thereof |
KR20060001372A (en) | 2004-06-30 | 2006-01-06 | 삼성에스디아이 주식회사 | Electron emission device with low background-brightness |
EP1616990B1 (en) | 2004-07-13 | 2017-08-30 | LG Electronics, Inc. | Washing machine with steam generation apparatus |
US7360328B2 (en) | 2004-07-14 | 2008-04-22 | Kai Tung Augustine Fung | Steam generating device and iron using the steam generating device |
KR100565251B1 (en) | 2004-07-19 | 2006-03-30 | 엘지전자 주식회사 | Water saving washing method for drum type washing machine |
US8122547B2 (en) | 2004-07-20 | 2012-02-28 | Lg Electronics Inc. | Washing machine and method for controlling the same |
DE102004039662A1 (en) | 2004-08-16 | 2006-02-23 | BSH Bosch und Siemens Hausgeräte GmbH | Program-controlled washing machine |
KR100635669B1 (en) | 2004-10-07 | 2006-10-17 | 엘지전자 주식회사 | Drum type washing machine for having dry function of tub construction |
JP4439371B2 (en) | 2004-10-12 | 2010-03-24 | 三洋電機株式会社 | Washing machine |
KR100662364B1 (en) | 2004-11-01 | 2007-01-02 | 엘지전자 주식회사 | Apparatus for washing and drying clothes |
US20060096333A1 (en) | 2004-11-05 | 2006-05-11 | Samsung Electronics Co., Ltd. | Steam generating device and washing machine having the same |
KR100595263B1 (en) | 2004-11-10 | 2006-07-03 | 엘지전자 주식회사 | operating method of Refresh Mode in washing device |
US7418789B2 (en) | 2004-11-10 | 2008-09-02 | Lg Electronics Inc. | Combination dryer and method thereof |
US20060137105A1 (en) | 2004-11-12 | 2006-06-29 | Lg Electronics Inc. | Drying control apparatus and method of washing and drying machine |
KR100745418B1 (en) | 2004-11-16 | 2007-08-02 | 삼성전자주식회사 | Control method of washing machine having steam generation |
KR20060055222A (en) | 2004-11-18 | 2006-05-23 | 삼성전자주식회사 | Washing machine and control method thereof |
DE602004004558T2 (en) | 2004-11-23 | 2008-01-03 | Electrolux Home Products Corporation N.V. | Fleet-revolving household washing machine with automatic determination of the laundry weight, and associated operating method. |
KR100672515B1 (en) | 2004-11-30 | 2007-01-24 | 엘지전자 주식회사 | Operating method of washing device |
KR20060061974A (en) † | 2004-12-02 | 2006-06-09 | 삼성전자주식회사 | Apparatus for remove wrinkles of clothes and method thereof |
KR100672502B1 (en) | 2004-12-09 | 2007-01-24 | 엘지전자 주식회사 | Method of washing device |
KR100672501B1 (en) | 2004-12-09 | 2007-01-24 | 엘지전자 주식회사 | Method of washing device |
CN1664222B (en) | 2004-12-20 | 2010-05-05 | 松下·万宝(广州)电熨斗有限公司 | Electric iron |
JP4885146B2 (en) | 2004-12-28 | 2012-02-29 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Steam generator below a predetermined maximum value and method for maintaining the degree of contamination of its contents |
KR20060082689A (en) | 2005-01-13 | 2006-07-19 | 삼성전자주식회사 | A washing machine and a washing tub cleaning method |
WO2006091057A1 (en) | 2005-02-28 | 2006-08-31 | Lg Electronics Inc. | Refresher and machine for washing or drying with the same |
KR100763386B1 (en) | 2005-02-25 | 2007-10-05 | 엘지전자 주식회사 | Control Method of The Washing Machine |
WO2006090973A1 (en) | 2005-02-25 | 2006-08-31 | Lg Electronics Inc. | Washing a tub or a drum in a washing machine |
KR100698147B1 (en) | 2005-02-25 | 2007-03-26 | 엘지전자 주식회사 | Control Method for Washing Machine |
KR101186595B1 (en) | 2005-02-28 | 2012-09-27 | 엘지전자 주식회사 | coupling structure of steam generator in washing device |
EP2230348B1 (en) | 2005-03-16 | 2016-03-09 | LG Electronics Inc. | Washing or drying machine using steam and method for controlling the same |
KR20060100604A (en) | 2005-03-17 | 2006-09-21 | 엘지전자 주식회사 | Apparatus for spraying steam in washing machine |
KR100753506B1 (en) | 2005-03-17 | 2007-08-31 | 엘지전자 주식회사 | Water level sensor of apparatus for spraying steam in washing machine |
KR100672367B1 (en) | 2005-03-25 | 2007-01-24 | 엘지전자 주식회사 | Method for washing by steam in drum type washer |
WO2006101304A1 (en) | 2005-03-25 | 2006-09-28 | Lg Electronics Inc. | Method for controlling washing machine |
US20080271500A1 (en) | 2005-03-25 | 2008-11-06 | Lg Electronics Inc. | Laundry Machine |
WO2006101365A1 (en) | 2005-03-25 | 2006-09-28 | Lg Electronics Inc. | Operating method of the laundry machine |
KR100781274B1 (en) | 2006-01-06 | 2007-11-30 | 엘지전자 주식회사 | method for controlling washing machine |
KR100672526B1 (en) | 2005-03-25 | 2007-01-24 | 엘지전자 주식회사 | Washing device and method thereof |
ES2340064T5 (en) | 2005-03-25 | 2015-04-24 | Lg Electronics Inc. | Steam generator, and washing device and procedure for it |
KR100753507B1 (en) | 2005-03-25 | 2007-08-31 | 엘지전자 주식회사 | drum type washing machine |
PL1861539T3 (en) | 2005-03-25 | 2015-08-31 | Lg Electronics Inc | Laundry machine and method for controlling the same |
KR100808176B1 (en) | 2005-03-25 | 2008-02-29 | 엘지전자 주식회사 | steam generator for drum type washing machine |
KR100672371B1 (en) | 2005-03-25 | 2007-01-24 | 엘지전자 주식회사 | Operating method in washing machine |
EP1861532B1 (en) | 2005-03-25 | 2011-01-12 | LG Electronics Inc. | Method for controlling operation of a washing machine |
WO2006101362A1 (en) | 2005-03-25 | 2006-09-28 | Lg Electronics Inc. | Method for washing of washer |
KR100686031B1 (en) | 2005-03-25 | 2007-02-22 | 엘지전자 주식회사 | Control Method for washing course by spray steam in drum type washer |
KR100546626B1 (en) | 2005-03-29 | 2006-01-26 | 엘지전자 주식회사 | Steam washing method for washing machine |
US20090139037A1 (en) | 2005-04-22 | 2009-06-04 | Seong Hai Jeong | Laundry device and method for controlling the same |
WO2006126815A2 (en) | 2005-05-23 | 2006-11-30 | Lg Electronics, Inc. | Dryer and method for controlling the same |
DE112006000052B4 (en) | 2005-05-23 | 2011-07-07 | Lg Electronics Inc., Seoul | Laundry machine with steam generator |
KR20060120824A (en) | 2005-05-23 | 2006-11-28 | 엘지전자 주식회사 | Fixing structure of apparatus for steam generator in washing machine |
JP4927075B2 (en) | 2005-05-23 | 2012-05-09 | エルジー エレクトロニクス インコーポレイティド | Water level sensor structure of steam generator of drum washing machine |
DE112006000038B4 (en) | 2005-05-23 | 2012-10-31 | Lg Electronics Inc. | Steam generator for a drum washing machine |
DE112006000053T5 (en) | 2005-05-23 | 2007-11-08 | Lg Electronics Inc. | Steam generator and washing machine with such |
ES2579453T3 (en) | 2005-05-23 | 2016-08-11 | Lg Electronics Inc. | Steam generation device for a drum type washing machine |
KR101154962B1 (en) | 2005-05-23 | 2012-06-18 | 엘지전자 주식회사 | steam generator having press-sensor for drum washing machine and contrl method as the same |
KR101253126B1 (en) | 2005-05-23 | 2013-04-10 | 엘지전자 주식회사 | Water Level Sensor of Apparatus for Spraying Steam in Drum type Washer |
WO2006129913A1 (en) | 2005-05-31 | 2006-12-07 | Lg Electronics Inc. | A method for controlling a washing machine |
KR100833857B1 (en) | 2005-05-31 | 2008-06-02 | 엘지전자 주식회사 | Washing machine |
WO2006129916A1 (en) | 2005-05-31 | 2006-12-07 | Lg Electronics Inc. | Laundry machine |
EP1751344B1 (en) | 2005-05-31 | 2017-11-22 | LG Electronics Inc. | A washing machine generating and using the steam |
KR101235193B1 (en) | 2005-06-13 | 2013-02-20 | 삼성전자주식회사 | Washing machine and control method thereof |
ATE386835T1 (en) | 2005-06-16 | 2008-03-15 | Electrolux Home Prod Corp | WATER RECYCLING DOMESTIC WASHING MACHINE WITH AUTOMATIC LAUNDRY CAPTURE AND ASSOCIATED METHOD |
KR101154971B1 (en) | 2005-06-30 | 2012-06-18 | 엘지전자 주식회사 | Control Method for time display in drum type washer by spray steam |
RU2395033C2 (en) | 2005-07-11 | 2010-07-20 | Конинклейке Филипс Электроникс Н.В. | Boiler system to be used with steam generating device |
WO2007010327A1 (en) | 2005-07-22 | 2007-01-25 | F.M.B. S.P.A. | Machine and method for washing and/or dry-cleaning articles |
DE102006035015B4 (en) | 2005-07-30 | 2010-04-08 | Lg Electronics Inc. | Laundry treatment device and control method therefor |
WO2007024050A1 (en) | 2005-08-25 | 2007-03-01 | Lg Electronics Inc. | Operating method for laundry machine |
KR101137335B1 (en) | 2005-08-25 | 2012-04-19 | 엘지전자 주식회사 | operating method for laundry machine |
KR101199361B1 (en) | 2005-08-25 | 2012-11-09 | 엘지전자 주식회사 | washing device and method thereof |
KR101215347B1 (en) | 2005-08-29 | 2012-12-26 | 엘지전자 주식회사 | steam generator for drum washing machine and control method as the same |
KR100774181B1 (en) | 2005-09-01 | 2007-11-07 | 엘지전자 주식회사 | steam generator |
US20070084000A1 (en) | 2005-10-13 | 2007-04-19 | Bernardino Flavio E | Stain removal process using combination of low and high speed spin |
US20070107884A1 (en) | 2005-10-27 | 2007-05-17 | Sirkar Kamalesh K | Polymeric hollow fiber heat exchange systems |
DE102005051721A1 (en) | 2005-10-27 | 2007-05-03 | Aweco Appliance Systems Gmbh & Co. Kg | Household machine, especially washing machine or dishwasher, has steam generator with through pass heating element and pipe and steam nozzle in working space |
KR20070049406A (en) | 2005-11-08 | 2007-05-11 | 삼성전자주식회사 | Drum type washing machine |
WO2007055510A1 (en) | 2005-11-10 | 2007-05-18 | Lg Electronics Inc. | Steam generator and laundry dryer having the same and controlling method thereof |
WO2007055475A1 (en) | 2005-11-11 | 2007-05-18 | Lg Electronics Inc. | Drum-type washing machine and tub cleaning method of the same |
WO2007058477A1 (en) | 2005-11-15 | 2007-05-24 | Lg Electronics, Inc. | Apparatus of supplying and dicharging fluid and method of operating the same |
AU2005330965B2 (en) | 2005-12-22 | 2009-03-05 | Lg Electronics Inc. | Method for cleaning a tub in a washing machine |
CN101052761B (en) | 2005-12-22 | 2010-06-16 | Lg电子株式会社 | Method of cleaning drum of washing machine |
KR20070074119A (en) | 2006-01-06 | 2007-07-12 | 엘지전자 주식회사 | Steam generator and washing machine using the same |
JP2009523051A (en) | 2006-01-11 | 2009-06-18 | エルジー エレクトロニクス インコーポレイティド | Washing apparatus and steam washing method thereof |
KR101139250B1 (en) | 2006-01-26 | 2012-05-14 | 삼성전자주식회사 | Washing machine with steam generator and method using the same |
KR20070078328A (en) | 2006-01-26 | 2007-07-31 | 엘지전자 주식회사 | Steam generator and washing machine using the same |
KR101233164B1 (en) | 2006-01-26 | 2013-02-15 | 엘지전자 주식회사 | Steam generator and washing machine using the same |
KR20070078329A (en) | 2006-01-26 | 2007-07-31 | 엘지전자 주식회사 | Steam generator and washing machine using the same |
KR20070088068A (en) | 2006-02-24 | 2007-08-29 | 엘지전자 주식회사 | Steam generator for washing machine |
FR2899246B1 (en) | 2006-03-31 | 2008-05-09 | Rowenta Werke Gmbh | STEAM IRON COMPRISING A DESCALING INDICATOR |
KR100672490B1 (en) | 2006-04-13 | 2007-01-24 | 엘지전자 주식회사 | Steam generator for clothing process device and using the same |
US7730568B2 (en) | 2006-06-09 | 2010-06-08 | Whirlpool Corporation | Removal of scale and sludge in a steam generator of a fabric treatment appliance |
US7765628B2 (en) | 2006-06-09 | 2010-08-03 | Whirlpool Corporation | Steam washing machine operation method having a dual speed spin pre-wash |
US7627920B2 (en) | 2006-06-09 | 2009-12-08 | Whirlpool Corporation | Method of operating a washing machine using steam |
US20070283728A1 (en) | 2006-06-09 | 2007-12-13 | Nyik Siong Wong | Prevention of scale and sludge in a steam generator of a fabric treatment appliance |
US20070283509A1 (en) | 2006-06-09 | 2007-12-13 | Nyik Siong Wong | Draining liquid from a steam generator of a fabric treatment appliance |
US20090307921A1 (en) | 2006-06-12 | 2009-12-17 | Sang Hun Bae | Laundry dryer and method for controlling the same |
KR101328917B1 (en) | 2006-06-27 | 2013-11-14 | 엘지전자 주식회사 | Steam generator |
KR100789834B1 (en) | 2006-07-04 | 2008-01-02 | 엘지전자 주식회사 | Drum-type washer and tub cleaning method of the same |
US7708959B2 (en) | 2006-07-20 | 2010-05-04 | Scholle Corporation | Sterilization system and method suitable for use in association with filler devices |
US7681418B2 (en) | 2006-08-15 | 2010-03-23 | Whirlpool Corporation | Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor |
CN1962988A (en) | 2006-11-17 | 2007-05-16 | 李德锵 | Front and rear roller crosslinked cloth-traction mechanism for quilting machine |
CN101191612A (en) | 2006-11-20 | 2008-06-04 | 游图明 | Steam forming method and device for domestic appliances |
US20080141552A1 (en) | 2006-12-18 | 2008-06-19 | Lg Electronics Inc. | Steam dryer |
DE102007023020B3 (en) | 2007-05-15 | 2008-05-15 | Miele & Cie. Kg | Front loadable laundry treatment machine i.e. washing machine, has inlet valve controlling water supply to inlet opening of steam generation device, where free flow section is arranged between inlet valve and inlet opening of tank |
US7690062B2 (en) | 2007-08-31 | 2010-04-06 | Whirlpool Corporation | Method for cleaning a steam generator |
US7966683B2 (en) | 2007-08-31 | 2011-06-28 | Whirlpool Corporation | Method for operating a steam generator in a fabric treatment appliance |
US8037565B2 (en) | 2007-08-31 | 2011-10-18 | Whirlpool Corporation | Method for detecting abnormality in a fabric treatment appliance having a steam generator |
-
2006
- 2006-08-15 US US11/464,513 patent/US7681418B2/en active Active
-
2007
- 2007-08-08 CA CA002596566A patent/CA2596566A1/en not_active Abandoned
- 2007-08-13 EP EP07253174.2A patent/EP1889966B2/en active Active
- 2007-08-14 MX MX2007009859A patent/MX2007009859A/en not_active Application Discontinuation
-
2010
- 2010-02-02 US US12/698,199 patent/US7913339B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20080040868A1 (en) | 2008-02-21 |
US7681418B2 (en) | 2010-03-23 |
EP1889966A2 (en) | 2008-02-20 |
US20100132128A1 (en) | 2010-06-03 |
US7913339B2 (en) | 2011-03-29 |
EP1889966B2 (en) | 2015-10-21 |
EP1889966A3 (en) | 2010-06-02 |
EP1889966B1 (en) | 2012-03-21 |
MX2007009859A (en) | 2008-10-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7681418B2 (en) | Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor | |
US7591859B2 (en) | Water supply control for a steam generator of a fabric treatment appliance using a weight sensor | |
US7707859B2 (en) | Water supply control for a steam generator of a fabric treatment appliance | |
CA2638944C (en) | Method for detecting abnormality in a fabric treatment appliance having a steam generator | |
EP1889963B1 (en) | Determining fabric temperature in a fabric treating appliance | |
US9732957B2 (en) | Fabric treatment appliance with steam backflow device | |
US8555676B2 (en) | Fabric treatment appliance with steam backflow device | |
US20170183806A1 (en) | Detergent dispenser for a laundry treating appliance | |
KR100600768B1 (en) | Wash machine and control method for the same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FZDE | Discontinued |