US20080226477A1 - Electromagnetic oscillating fluid pump - Google Patents
Electromagnetic oscillating fluid pump Download PDFInfo
- Publication number
- US20080226477A1 US20080226477A1 US12/128,899 US12889908A US2008226477A1 US 20080226477 A1 US20080226477 A1 US 20080226477A1 US 12889908 A US12889908 A US 12889908A US 2008226477 A1 US2008226477 A1 US 2008226477A1
- Authority
- US
- United States
- Prior art keywords
- valve
- piston
- fluid pump
- electromagnetic
- housing
- 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
- 239000012530 fluid Substances 0.000 title claims abstract description 11
- 230000004075 alteration Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
- F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
- F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
Definitions
- the present invention relates to pumps, and more particularly to electromagnetically driven oscillating pumps.
- Electromagnetic oscillating pumps are well known in the art. Typically, an electromagnetic coil is utilized to move an armature carried by an impeller relative to the frame assembly of the pump. Upon energization, a bellows-shaped discharge end of the impeller, defining a discharge chamber, is compressed, thereby decreasing the volume of the discharge chamber. This decrease in volume forces the liquid inside the chamber out of the pump through a one-way discharge valve.
- a spring or permanent magnet Upon de-energization, a spring or permanent magnet returns the impeller to its original position or beyond, thereby increasing the volume of the discharge chamber. As a result, a partial vacuum is created inside the discharge chamber, and liquid is drawn from an inlet end of the impeller, past a center valve, and into the discharge chamber. The electromagnetic coil is then re-energized and the cycle is repeated, thereby producing a stop-and-go flow in one direction.
- a primary object of the present invention is to provide an electromagnetic oscillating fluid pump, which can be employed in any direction without limits.
- Another object of the present invention is to provide an electromagnetic oscillating fluid pump, which avoids using pivoting connection between valve and piston for extending durability.
- FIG. 1 is a longitudinal cross section of an electromagnetic oscillating fluid pump according to one preferred embodiment of the present invention showing the pump in a static status;
- FIG. 2 is a longitudinal cross section showing a first motion status
- FIG. 3 is a longitudinal cross section showing a second motion status.
- the pump includes a housing 1 which is a hollow cylinder to accommodate other elements.
- An air inlet 13 and an air outlet 11 are arranged at the centers of two end sides of the housing, respectively.
- Two annular electromagnetic coils 21 , 22 are fixed at two ends of the housing 1 , respectively.
- the hollow centers of the electromagnetic coils 21 , 22 form air passages 211 , 221 , respectively.
- the air passages 211 , 221 are corresponding to the air inlet 13 and air outlet 11 .
- a piston 3 is slidably disposed between the two electromagnetic coils 21 , 22 .
- a control circuit (not shown) electrically couples the two electromagnetic coils 21 , 22 to change their magnetic polarity.
- the piston 3 made of a permanent magnet is of a disk shape. Thus, its magnetic polarity appears in a direction of upside and downside.
- a first valve hole 31 is formed at the center of the piston 3 to slidably receive a first valve 30 .
- the first valve 30 is of a T shape composed of two perpendicular main bars 301 , 302 and one tail bar 303 .
- the horizontal main bar 301 is parallel to and longer than the tail bar 303 .
- a gap 304 is defined between the vertical main bar 302 and the first valve hole 31 for allowing air to pass through.
- a second valve 12 which has the same outline as the first valve 30 , can be disposed in the second valve hole 10 at upper end of the housing 1 . The second valve 12 can prevent air pushed by the piston 3 from directly spouting out.
- the space between the two electromagnetic coils 21 , 22 is substantially the reciprocating space of the piston 3 .
- the electromagnetic coil 21 , 22 are magnetically energized, the piston 3 can be reciprocatingly driven by the magnetism.
- FIGS. 2 and 3 illustrate the operation of the electromagnetic oscillating fluid pump.
- upside of the piston which is adjacent to the first electromagnetic coil 21
- the piston 3 is located more adjacent to the electromagnetic coil 21 , and the first valve 30 and second valve 12 are both closed.
- a control circuit (not shown) controls both the lower half of the first electromagnetic coil 21 and the upper half of the second electromagnetic coil 22 to be N pole.
- the piston 3 is magnetically driven by the electromagnetic coils 21 , 22 to move downward.
- air pressed by the piston 3 pushes the first valve 30 to move upward.
- the first valve 30 is opened so that air can passes through the gap 304 and the through holes 305 .
- the control circuit controls the magnetic elements 21 , 22 to change their magnetic polarity, i.e. both the lower half of the first electromagnetic coil 21 and the upper half of the second electromagnetic coil 22 to be S pole.
- the piston 3 is magnetically driven by the electromagnetic coil 21 to move upward.
- air pressed by the piston 3 pushes the second valve 12 to move upward. Therefore, air can pass through the second valve hole 10 to spout out of the air outlet 11 .
Abstract
An electromagnetic oscillating fluid pump with a T-shaped valve includes a housing having an air outlet end and an air outlet, two electromagnetic coils disposed in the housing and a magnetic piston slidably disposed between the two electromagnetic coils, which has a valve disposed therein. By changing the magnetic polarity of the electromagnetic coil, the piston is magnetically driven to reciprocate. During reciprocation of the piston, air can be pressed to open the valve to pass through a gap between the valve and piston.
Description
- This application is a continuation-in-part of U.S. patent application Ser. No. 10/957,585, filed Oct. 5, 2004.
- The present invention relates to pumps, and more particularly to electromagnetically driven oscillating pumps.
- Electromagnetic oscillating pumps are well known in the art. Typically, an electromagnetic coil is utilized to move an armature carried by an impeller relative to the frame assembly of the pump. Upon energization, a bellows-shaped discharge end of the impeller, defining a discharge chamber, is compressed, thereby decreasing the volume of the discharge chamber. This decrease in volume forces the liquid inside the chamber out of the pump through a one-way discharge valve.
- Upon de-energization, a spring or permanent magnet returns the impeller to its original position or beyond, thereby increasing the volume of the discharge chamber. As a result, a partial vacuum is created inside the discharge chamber, and liquid is drawn from an inlet end of the impeller, past a center valve, and into the discharge chamber. The electromagnetic coil is then re-energized and the cycle is repeated, thereby producing a stop-and-go flow in one direction.
- Currently, the oscillating pumps known in the art use alternation of magnetic polarity as the returning force. Han's U.S. Pat. No. 5,501,581, for example, discloses an electromagnetic oscillating pump using a valve pivotedly connected to a magnetic cylinder. Due to cylindrical shape of the magnetic cylinder, the valve must be connected at substantially single one pivoting point. Under a situation of frequently and periodically movement, the pivot between the valve and magnetic cylinder must tend to fail because of its structural weakness. Furthermore, such pumps as Han must be utilized in a specific direction, which is horizontal with pivot upward just as shown in his drawings. Therefore, the pump disclosed by Han is less useful.
- A primary object of the present invention is to provide an electromagnetic oscillating fluid pump, which can be employed in any direction without limits.
- Another object of the present invention is to provide an electromagnetic oscillating fluid pump, which avoids using pivoting connection between valve and piston for extending durability.
-
FIG. 1 is a longitudinal cross section of an electromagnetic oscillating fluid pump according to one preferred embodiment of the present invention showing the pump in a static status; -
FIG. 2 is a longitudinal cross section showing a first motion status; and -
FIG. 3 is a longitudinal cross section showing a second motion status. - In order to better understanding the features and technical contents of the present invention, the present invention is hereinafter described in detail by incorporating with the accompanying drawings. However, the accompanying drawings are only for the convenience of illustration and description, no limitation is intended thereto.
- Terms such as “top”, “bottom”, “horizontal”, “vertical”, “end” and so forth will be used in the description to follow. However, these are relative terms, used for ease of understanding. Whether an element or feature is “above”, “under” or at the “end” of another element or feature depends on a particular point of view. Thus, the descriptions are not to be read as restrictive on the invention.
- Referring first to
FIG. 1 , an electromagnetic oscillating fluid pump in accordance with one embodiment of the present invention is illustrated. The pump includes ahousing 1 which is a hollow cylinder to accommodate other elements. Anair inlet 13 and anair outlet 11 are arranged at the centers of two end sides of the housing, respectively. Two annularelectromagnetic coils housing 1, respectively. The hollow centers of theelectromagnetic coils form air passages air passages air inlet 13 andair outlet 11. Apiston 3 is slidably disposed between the twoelectromagnetic coils electromagnetic coils - The
piston 3 made of a permanent magnet is of a disk shape. Thus, its magnetic polarity appears in a direction of upside and downside. Afirst valve hole 31 is formed at the center of thepiston 3 to slidably receive afirst valve 30. Thefirst valve 30 is of a T shape composed of two perpendicularmain bars tail bar 303. The horizontalmain bar 301 is parallel to and longer than thetail bar 303. Agap 304 is defined between the verticalmain bar 302 and thefirst valve hole 31 for allowing air to pass through. There may be one or more throughholes 305 around the first hole and under the horizontalmain bar 301 for satisfying requirement of a larger quantity of air passing thefirst valve 30. Additionally, asecond valve 12, which has the same outline as thefirst valve 30, can be disposed in thesecond valve hole 10 at upper end of thehousing 1. Thesecond valve 12 can prevent air pushed by thepiston 3 from directly spouting out. - The space between the two
electromagnetic coils piston 3. When theelectromagnetic coil piston 3 can be reciprocatingly driven by the magnetism. -
FIGS. 2 and 3 illustrate the operation of the electromagnetic oscillating fluid pump. Here, we assume that upside of the piston, which is adjacent to the firstelectromagnetic coil 21, is a north (N) pole, while the downside is a south (S) pole. Before thepiston 3 starts reciprocating, thepiston 3 is located more adjacent to theelectromagnetic coil 21, and thefirst valve 30 andsecond valve 12 are both closed. A control circuit (not shown) controls both the lower half of the firstelectromagnetic coil 21 and the upper half of the secondelectromagnetic coil 22 to be N pole. At this time, thepiston 3 is magnetically driven by theelectromagnetic coils piston 3 moves towards the secondelectromagnetic coil 22, air pressed by thepiston 3 pushes thefirst valve 30 to move upward. In other words, thefirst valve 30 is opened so that air can passes through thegap 304 and the throughholes 305. - After that, the control circuit controls the
magnetic elements electromagnetic coil 21 and the upper half of the secondelectromagnetic coil 22 to be S pole. Thus, thepiston 3 is magnetically driven by theelectromagnetic coil 21 to move upward. When thepiston 3 moves towards the firstmagnetic element 21, similarly to thefirst valve 30, air pressed by thepiston 3 pushes thesecond valve 12 to move upward. Therefore, air can pass through thesecond valve hole 10 to spout out of theair outlet 11. - Since, any person having ordinary skill in the art may readily find various equivalent alterations or modifications in light of the features as disclosed above, it is appreciated that the scope of the present invention is defined in the following claims. Therefore, all such equivalent alterations or modifications without departing from the subject matter as set forth in the following claims is considered within the spirit and scope of the present invention.
Claims (4)
1. A electromagnetic oscillating fluid pump, comprising:
a housing being hollow cylinder and having an air inlet and an air outlet at two ends thereof, respectively;
two electromagnetic coils disposed within the housing;
a piston made of permanent magnet, disposed between the two electromagnetic coils, wherein the piston is of a disk shape with two magnetic poles on two sides thereof, respectively, a first valve hole is arranged in the piston; and
a first valve slidably received in the first valve hole, being of a T shape.
2. The fluid pump as recited in claim 1 , wherein the first valve is composed of two perpendicular main bars and one tail bar, the horizontal main bar is parallel to and longer than the tail bar, and a gap is defined between the vertical main bar and the first valve hole for allowing air to pass through.
3. The fluid pump as recited in claim 1 , further comprising one or more through holes around the first hole and under the first valve.
4. The fluid pump as recited in claim 1 , further comprising a second valve slidably received in a second valve hole located in the housing near the air outlet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/128,899 US20080226477A1 (en) | 2004-10-05 | 2008-05-29 | Electromagnetic oscillating fluid pump |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/957,585 US20060073039A1 (en) | 2004-10-05 | 2004-10-05 | Linear oscillating pressurizing device |
US12/128,899 US20080226477A1 (en) | 2004-10-05 | 2008-05-29 | Electromagnetic oscillating fluid pump |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/957,585 Continuation-In-Part US20060073039A1 (en) | 2004-10-05 | 2004-10-05 | Linear oscillating pressurizing device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080226477A1 true US20080226477A1 (en) | 2008-09-18 |
Family
ID=39762906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/128,899 Abandoned US20080226477A1 (en) | 2004-10-05 | 2008-05-29 | Electromagnetic oscillating fluid pump |
Country Status (1)
Country | Link |
---|---|
US (1) | US20080226477A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110020143A1 (en) * | 2009-07-22 | 2011-01-27 | Van Brunt Nicholas P | Method of controlling gaseous fluid pump |
US20130287611A1 (en) * | 2011-01-07 | 2013-10-31 | Inficon Gmbh | Double acting refrigeration compressor |
CN103603785A (en) * | 2013-10-24 | 2014-02-26 | 加西贝拉压缩机有限公司 | Gas compressor |
US20170114911A1 (en) * | 2015-10-23 | 2017-04-27 | Sumitomo Heavy Industries, Ltd. | Valve structure, nonlubricated linear compressor, and cryocooler |
CN107112882A (en) * | 2014-07-11 | 2017-08-29 | 马文·雷·麦肯齐 | Oscillating linear compressor |
CN108412722A (en) * | 2018-03-13 | 2018-08-17 | 李永超 | Li Shi electromagnetic pumps, heat production piping network, hot channel network, Constant-temp. pipeline network and its control system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4714423A (en) * | 1986-12-13 | 1987-12-22 | Ngk Insulators, Ltd. | Evacuating device for plunger molding apparatus |
US4775301A (en) * | 1986-06-27 | 1988-10-04 | Cartwright Garry E | Oscillating electromagnetic pump with one-way diaphragm valves |
US5472323A (en) * | 1993-01-07 | 1995-12-05 | Tdk Corporation | Movable magnet type pump |
US5818131A (en) * | 1997-05-13 | 1998-10-06 | Zhang; Wei-Min | Linear motor compressor and its application in cooling system |
-
2008
- 2008-05-29 US US12/128,899 patent/US20080226477A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4775301A (en) * | 1986-06-27 | 1988-10-04 | Cartwright Garry E | Oscillating electromagnetic pump with one-way diaphragm valves |
US4714423A (en) * | 1986-12-13 | 1987-12-22 | Ngk Insulators, Ltd. | Evacuating device for plunger molding apparatus |
US5472323A (en) * | 1993-01-07 | 1995-12-05 | Tdk Corporation | Movable magnet type pump |
US5818131A (en) * | 1997-05-13 | 1998-10-06 | Zhang; Wei-Min | Linear motor compressor and its application in cooling system |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110020143A1 (en) * | 2009-07-22 | 2011-01-27 | Van Brunt Nicholas P | Method of controlling gaseous fluid pump |
US20110020156A1 (en) * | 2009-07-22 | 2011-01-27 | Van Brunt Nicholas P | Gaseous fluid pump |
WO2011011440A3 (en) * | 2009-07-22 | 2011-06-09 | Vbox, Incorporated | Method of controlling gaseous fluid pump |
US9695806B2 (en) | 2009-07-22 | 2017-07-04 | Vbox, Incorporated | Method of controlling gaseous fluid pump |
US20130287611A1 (en) * | 2011-01-07 | 2013-10-31 | Inficon Gmbh | Double acting refrigeration compressor |
US9777717B2 (en) * | 2011-01-07 | 2017-10-03 | Inficon Gmbh | Double acting refrigeration compressor |
CN103603785A (en) * | 2013-10-24 | 2014-02-26 | 加西贝拉压缩机有限公司 | Gas compressor |
CN107112882A (en) * | 2014-07-11 | 2017-08-29 | 马文·雷·麦肯齐 | Oscillating linear compressor |
US20170114911A1 (en) * | 2015-10-23 | 2017-04-27 | Sumitomo Heavy Industries, Ltd. | Valve structure, nonlubricated linear compressor, and cryocooler |
US10480665B2 (en) * | 2015-10-23 | 2019-11-19 | Sumitomo Heavy Industries, Ltd. | Valve structure, nonlubricated linear compressor, and cryocooler |
CN108412722A (en) * | 2018-03-13 | 2018-08-17 | 李永超 | Li Shi electromagnetic pumps, heat production piping network, hot channel network, Constant-temp. pipeline network and its control system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20080226477A1 (en) | Electromagnetic oscillating fluid pump | |
US6676388B2 (en) | Gas compression apparatus for reciprocating compressor | |
US6736614B1 (en) | Rotary piston drive mechanism | |
US7819642B2 (en) | Reciprocatory fluid pump | |
US4406591A (en) | Electromagnetic fluid pump | |
US4874299A (en) | High precision pump | |
US6299421B1 (en) | Oil supply apparatus of linear compressor | |
CA2469058A1 (en) | Reciprocating fluid pump employing reversing polarity motor | |
US20110056235A1 (en) | Linear electric compressor and refrigerant circuit | |
US3485441A (en) | Magnetically biased compressor check valves | |
JPH0442536Y2 (en) | ||
KR20030041289A (en) | Apparatus for supporting piston in reciprocating compressor | |
US3302582A (en) | Electromagnetic pump | |
US5104299A (en) | Electromagnetic reciprocating pump | |
KR101484325B1 (en) | Linear compressor | |
US1822242A (en) | Pump for liquids | |
JPH10184553A (en) | Electromagnetic pump | |
US6540491B1 (en) | Electromagnetic reciprocating compressor | |
US4509402A (en) | Magnetic reversing mechanism | |
JP2000045943A (en) | Electromagnetic reciprocating compressor | |
EP0203222A1 (en) | Electromagnetic linear motor and pump apparatus | |
KR20100112483A (en) | Linear compressor | |
CN218376766U (en) | Novel pump | |
CN218376823U (en) | High-precision electromagnetic metering pump | |
JPH10115473A (en) | Linear compressor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ROSSMAX INTERNATIONAL LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WU, CHAU-CHUAN;WU, TOWER S.J.;REEL/FRAME:021025/0862 Effective date: 20080519 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |