WO1998021419A1 - Flow regulator - Google Patents
Flow regulator Download PDFInfo
- Publication number
- WO1998021419A1 WO1998021419A1 PCT/AU1997/000763 AU9700763W WO9821419A1 WO 1998021419 A1 WO1998021419 A1 WO 1998021419A1 AU 9700763 W AU9700763 W AU 9700763W WO 9821419 A1 WO9821419 A1 WO 9821419A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flow
- ring member
- outer ring
- channels
- wall
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
- E03D9/16—Water pressure regulating means in flushing pipes
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0106—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule
- G05D7/012—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule the sensing element being deformable and acting as a valve
Definitions
- This invention relates to plumbing apparatus. More particularly although not exclusively it discloses a flow regulator device for toilet flush valves.
- a flow regulator device for a mains pressure valve such as a toilet flush valve or the like, said device comprising a housing having an outer ring member and an inner cone member disposed centrally of said ring member, one or more fluid flow channels defined between the outer periphery of said cone member and an inner wall of said ring member and a elastic flow restriction member adjacent the inner wall of said ring member whereby in use a pressure differential on said elastic restriction member caused by fluid flow through said channels deforms said restriction member inwardly to at least partially obstruct said channels, the volume of flow through said regulator being thereby kept substantially constant through a range of flow pressures and said outer ring member being disposed within an annular bush adapted for sealing location within the inlet conduit to said mains pressure valve.
- said cone member is formed with radial fins around the periphery thereof so that at least part of said flow channels are defined between said fins.
- said elastic restriction member comprise a commercially available O-ring.
- Figure 1 is a perspective view from the inlet side of a flow regulator according to this concept.
- Figure 2 is a perspective view of the regulator of figure 1 from the outlet side.
- Figure 3 shows an example of a toilet flush valve in partial section to which the flow regulator of figure 1 may be fitted.
- Figure 4 is a cross-sectioal view along the lines A-A of figure 1 with the elastic restriction member undeformed at zero flow pressure
- Figure 5 is a cross-sectional view similar to figure 4 but with the elastic restriction member deformed inwardly under pressure flow conditions.
- a regulator designated generally as 1 with a central cone 2 and a surrounding ring housing 3.
- the cone 2 has radial fins 4 and is held at its position within the ring 3 by flanges 5 as best shown in figure 2.
- An elastic restriction member 6 which in this case is a commercially available O-ring sits inside a niche in the ring housing 3.
- Fluid such as water can thus pass through the regulator with the volume flow being related to the cross-sectional area of these channels 7 and the applied pressure.
- the above assembly sits within an annular bush 8 and is secured in place from the outlet side by a spring clip 9.
- a peripheral seal 10 which may also be an O-ring sits in a recess around the outside of the bush .
- the device may be placed within the control cock tail pipe 11 of a conventional mains pressure toilet flush valve 13 as shown by arrow "A" in figure 3.
- the inlet side of the regulator 1 faces upstream toward the control cock 14.
- the diameter of the bush 8 is chosen so as to be a close tolerance sliding fit within the pipe 11 so that the peripheral seal 10 engages the wall thereof.
- one side of the bush also abuts the end 15 of the adjoining valve inlet pipe so as to support the regulator against the force of the incoming water flow.
- the velocity of flow through the channels 7 causes a corresponding pressure differential between the inner and outer surfaces to act on the O-ring 6.
- the result of this progressive restriction is that the volume flow rate of water allowed to pass through the flush valve 13 can be maintained at or close to the optimum valve of 1.2 litres per second over a vastly increased range of mains supply pressures including up to 1100 kpa found in high rise buildings. This results in a lower noise level and an extended life for the flush valve.
- this invention at least in the form of the embodiment described provides a novel and improved flow regulator device for mains pressure flush valves.
- the example disclosed is only the currently preferred form of this invention and a wide variety of modifications may be made which would be apparent to a person skilled in the art.
- the shape and configuration of the regulator housing and bush may be changed according to application or design preference.
- the regulator has been described in relation to toilet flush valves the device may be adapted for other applications such as for example water supply valves in air conditioning plants.
Abstract
There is a flow regulator device for a mains pressure valve or the like. The device comprises a housing having an outer ring member (3) and an inner cone member (2) with fins (4) disposed centrally of said ring member (3). There are fluid flow channels (7) defined between the outer periphery of the cone member (2) and an inner wall of said ring member (3) as well as between said fins (4). There is an elastic flow restriction member (6) adjacent the inner wall of said ring member (3) whereby in use of said device a pressure differential on said elastic restriction member (6) caused by fluid flow through said channels (7) deforms said restriction member inwardly to at least partially obstruct said channels (7). The volume of flow through said regulator is thereby kept substantially constant through a range of flow pressures. The outer ring member (3) is disposed within an annular bush adapted for sealing location within the inlet conduit to said mains pressure valve.
Description
FLO REGULATOR
This invention relates to plumbing apparatus. More particularly although not exclusively it discloses a flow regulator device for toilet flush valves.
In many commercial and industrial establishments mains pressure flush valves are used on the toilets. To operate efficiently these valves must be set up to pass about 1.2 litres of flush water per second into the bowl. For normal supply pressures between about 30 kpa to 300 pa known prior art valves are generally able to operate at this flow rate without difficulty. However in some installations such as for example high rise buildings where the water supply is taken from a roof cistern the pressure head of water on the lower floors can reach 1100 kpa. At this pressure existing flush valves become very noisy and are unable to limit the flow rate to anything near the required value.
It is an object of this invention to ameliorate the aforementioned disadvantages and accordingly there is disclosed a flow regulator device for a mains pressure valve such as a toilet flush valve or the like, said device comprising a housing having an outer ring member and an inner cone member disposed centrally of said ring member, one or more fluid flow channels defined between the outer periphery of said cone member and an inner wall
of said ring member and a elastic flow restriction member adjacent the inner wall of said ring member whereby in use a pressure differential on said elastic restriction member caused by fluid flow through said channels deforms said restriction member inwardly to at least partially obstruct said channels, the volume of flow through said regulator being thereby kept substantially constant through a range of flow pressures and said outer ring member being disposed within an annular bush adapted for sealing location within the inlet conduit to said mains pressure valve.
Preferably said cone member is formed with radial fins around the periphery thereof so that at least part of said flow channels are defined between said fins.
It is also preferred that said elastic restriction member comprise a commercially available O-ring.
The currently preferred form of this invention wil 1 now be described with reference to the attached representations in which:
Figure 1 is a perspective view from the inlet side of a flow regulator according to this concept.
Figure 2 is a perspective view of the regulator of figure 1 from the outlet side.
Figure 3 shows an example of a toilet flush valve in partial section to which the flow regulator of figure 1 may be fitted.
Figure 4 is a cross-sectioal view along the lines A-A of figure 1 with the elastic restriction member undeformed at zero flow pressure, and
Figure 5 is a cross-sectional view similar to figure 4 but with the elastic restriction member deformed inwardly under pressure flow conditions.
Referring first to figures 1 and 2 there is shown a regulator designated generally as 1 with a central cone 2 and a surrounding ring housing 3. The cone 2 has radial fins 4 and is held at its position within the ring 3 by flanges 5 as best shown in figure 2. An elastic restriction member 6 which in this case is a commercially available O-ring sits inside a niche in the ring housing 3. Defined between the cone 2 and the inner periphery of the ring housing 3 as well as between adjacent fins 4 are fluid flow channels 7. Fluid such as water can thus pass through the regulator with the volume flow being related to the cross-sectional area of these channels 7 and the applied pressure. The above assembly sits within an annular bush 8 and is secured in place from the outlet side by a spring clip 9. A peripheral seal 10 which may also be an O-ring sits in a recess around the outside of
the bush .
In use the device may be placed within the control cock tail pipe 11 of a conventional mains pressure toilet flush valve 13 as shown by arrow "A" in figure 3. The inlet side of the regulator 1 faces upstream toward the control cock 14.
The diameter of the bush 8 is chosen so as to be a close tolerance sliding fit within the pipe 11 so that the peripheral seal 10 engages the wall thereof. Preferably one side of the bush also abuts the end 15 of the adjoining valve inlet pipe so as to support the regulator against the force of the incoming water flow.
As mentioned earlier the velocity of flow through the channels 7 causes a corresponding pressure differential between the inner and outer surfaces to act on the O-ring 6. This deforms the ring from the substantially circular configuration shown in figure 4 to the inwardly compressed shape of figure 5 where it abuts the ends of the fins 4 and partially obstructs the channels 7 to thereby reduce the cross-sectional flow area. The result of this progressive restriction is that the volume flow rate of water allowed to pass through the flush valve 13 can be maintained at or close to the optimum valve of 1.2 litres per second over a vastly increased range of mains supply pressures including up to 1100 kpa found in high
rise buildings. This results in a lower noise level and an extended life for the flush valve.
It will thus be appreciated that this invention at least in the form of the embodiment described provides a novel and improved flow regulator device for mains pressure flush valves. Clearly however the example disclosed is only the currently preferred form of this invention and a wide variety of modifications may be made which would be apparent to a person skilled in the art. For example the shape and configuration of the regulator housing and bush may be changed according to application or design preference. Also while the regulator has been described in relation to toilet flush valves the device may be adapted for other applications such as for example water supply valves in air conditioning plants.
Claims
1. A flow regulator device for a mains pressure valve such as a toilet flush valve or the like, said device comprising a housing having an outer ring member and an inner cone member disposed centrally of said ring member, one or more fluid flow channels defined between the outer periphery of said cone member and an inner wall of said ring member and an elastic flow restriction member adjacent the inner wall of said ring whereby in use a pressure differential on said elastic restriction member caused by flow through said channels deforms said restriction member inwardly to at least partially obstruct said channels, the volume of flow through said regulator being thereby kept substantially constant through a range of flow pressures and said outer ring member being disposed within an annular bush adapted for sealing location within the inlet conduit to said mains pressure valve.
2. The flow regulator device as claimed in claim 1 wherein a peripheral seal sits in a recess around the outside of said annular bush.
3. the flow regulator device as claimed in claim 2 wherein said outer ring member is secured in place within said annular bush by a spring clip.
4. The flow regulator device as claimed in claim 3 wherein said peripheral seal is an O-ring.
5. A mains pressure toilet flush valve of the type described wherein a flow regulator device is fitted into the control cock tail pipe of said flush valve, said flow regulator device comprising a housing having an outer ring member and an inner cone member disposed centrally of said outer ring member, one or more fluid flow channels defined between the outer periphery of said cone member and an inner wall of said outer ring member and an elastic flow restriction member adjacent the inner wall of said outer ring member whereby in use a pressure differential on said elastic restriction member caused by fluid flow through said channels deforms said restriction member inwardly to at least partially obstruct said channels, the volume of flow through said regulator being thereby kept substantially constant through a range of flow pressures and said outer ring member being disposed within an annular bush adapted for sealing location within said control cock tail pipe whereby a peripheral seal on said annular bush engages an inner wall of said control cock tail pipe and said cone member faces upsteam toward said control cock.
6. The mains pressure toilet flush valve as claimed in claim 5 wherein one side of said annular bush abuts an and of an adjoining valve inlet pipe so as to support the regulator against the force of incoming water flow.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPO3592A AUPO359296A0 (en) | 1996-11-12 | 1996-11-12 | Flow regulator |
AUPO3592 | 1996-11-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998021419A1 true WO1998021419A1 (en) | 1998-05-22 |
Family
ID=3797903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU1997/000763 WO1998021419A1 (en) | 1996-11-12 | 1997-11-12 | Flow regulator |
Country Status (2)
Country | Link |
---|---|
AU (1) | AUPO359296A0 (en) |
WO (1) | WO1998021419A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001004714A1 (en) * | 1999-07-13 | 2001-01-18 | Dieter Wildfang Gmbh | Flow regulator |
US7766860B2 (en) * | 2004-04-22 | 2010-08-03 | Medtronic, Inc. | Catheter systems having flow restrictors |
CN102793537A (en) * | 2012-09-05 | 2012-11-28 | 天津九安医疗电子股份有限公司 | Mini-type air release valve |
US8784360B2 (en) | 2009-01-21 | 2014-07-22 | Medtronic, Inc. | Catheter systems having flow restrictors |
CN106286871A (en) * | 2015-05-14 | 2017-01-04 | 厦门松霖科技有限公司 | A kind of flow regulator |
US9539382B2 (en) | 2013-03-12 | 2017-01-10 | Medtronic, Inc. | Stepped catheters with flow restrictors and infusion systems using the same |
CN107237383A (en) * | 2017-05-26 | 2017-10-10 | 厦门致杰智能科技有限公司 | A kind of big flow stable-pressure device |
EP3228765A1 (en) * | 2016-04-07 | 2017-10-11 | Geberit International AG | Conduit piece assembly |
CN113616885A (en) * | 2015-12-21 | 2021-11-09 | 3M创新有限公司 | Medicinal inhalator |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3847178A (en) * | 1970-12-10 | 1974-11-12 | Mannesmann & Keppel | Fluid flow regulators |
DE2731537A1 (en) * | 1977-07-09 | 1979-01-18 | Vaillant Joh Gmbh & Co | Controller for constant fluid flow - has annular section of hose in recesses of pipe and has slotted element |
NL7905009A (en) * | 1979-06-27 | 1980-12-30 | Ocean Bv | Excess flow valve working in one direction only - has disc shaped plug with radial protrusions and of elastic material fitting in groove |
GB2199639A (en) * | 1986-12-29 | 1988-07-13 | Hydro Tec Ltd | Fluid flow control device |
DE3723559A1 (en) * | 1987-07-16 | 1989-01-26 | Reinhard Carl Mannesmann | Liquid quantity controller |
DE4026442A1 (en) * | 1990-08-21 | 1992-02-27 | Gerber Felix | Flow regulator for flowing liquids - has elastic annular ring with central journal and is easier to set to desired rate |
JPH07260026A (en) * | 1994-03-22 | 1995-10-13 | Fujikura Rubber Ltd | Flow adjusting device |
JPH08145214A (en) * | 1994-11-22 | 1996-06-07 | Fujikura Rubber Ltd | Water governor for small flow rate |
-
1996
- 1996-11-12 AU AUPO3592A patent/AUPO359296A0/en not_active Abandoned
-
1997
- 1997-11-12 WO PCT/AU1997/000763 patent/WO1998021419A1/en unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3847178A (en) * | 1970-12-10 | 1974-11-12 | Mannesmann & Keppel | Fluid flow regulators |
DE2731537A1 (en) * | 1977-07-09 | 1979-01-18 | Vaillant Joh Gmbh & Co | Controller for constant fluid flow - has annular section of hose in recesses of pipe and has slotted element |
NL7905009A (en) * | 1979-06-27 | 1980-12-30 | Ocean Bv | Excess flow valve working in one direction only - has disc shaped plug with radial protrusions and of elastic material fitting in groove |
GB2199639A (en) * | 1986-12-29 | 1988-07-13 | Hydro Tec Ltd | Fluid flow control device |
DE3723559A1 (en) * | 1987-07-16 | 1989-01-26 | Reinhard Carl Mannesmann | Liquid quantity controller |
DE4026442A1 (en) * | 1990-08-21 | 1992-02-27 | Gerber Felix | Flow regulator for flowing liquids - has elastic annular ring with central journal and is easier to set to desired rate |
JPH07260026A (en) * | 1994-03-22 | 1995-10-13 | Fujikura Rubber Ltd | Flow adjusting device |
JPH08145214A (en) * | 1994-11-22 | 1996-06-07 | Fujikura Rubber Ltd | Water governor for small flow rate |
Non-Patent Citations (3)
Title |
---|
DERWENT ABSTRACT, Accession No. 81-A8365D; & NL,A,79 05009 (OCEAN BV), 30 December 1980. * |
PATENT ABSTRACTS OF JAPAN, Vol. 96, No. 10; & JP,A,08 145 214 (FUJIKURA RUBBER LIMITED), 7 June 1996. * |
PATENT ABSTRACTS OF JAPAN, Vol. 96, No. 2; & JP,A,07 260 026 (FUJIKURA RUBBER LIMITED), 13 October 1995. * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001004714A1 (en) * | 1999-07-13 | 2001-01-18 | Dieter Wildfang Gmbh | Flow regulator |
US6571831B1 (en) | 1999-07-13 | 2003-06-03 | Dieter Wildfang Gmbh | Flow regulator |
US7766860B2 (en) * | 2004-04-22 | 2010-08-03 | Medtronic, Inc. | Catheter systems having flow restrictors |
US8784360B2 (en) | 2009-01-21 | 2014-07-22 | Medtronic, Inc. | Catheter systems having flow restrictors |
CN102793537A (en) * | 2012-09-05 | 2012-11-28 | 天津九安医疗电子股份有限公司 | Mini-type air release valve |
US9539382B2 (en) | 2013-03-12 | 2017-01-10 | Medtronic, Inc. | Stepped catheters with flow restrictors and infusion systems using the same |
CN106286871A (en) * | 2015-05-14 | 2017-01-04 | 厦门松霖科技有限公司 | A kind of flow regulator |
CN113616885A (en) * | 2015-12-21 | 2021-11-09 | 3M创新有限公司 | Medicinal inhalator |
CN113769209A (en) * | 2015-12-21 | 2021-12-10 | 3M创新有限公司 | Medicinal inhalator |
EP3228765A1 (en) * | 2016-04-07 | 2017-10-11 | Geberit International AG | Conduit piece assembly |
CN107237383A (en) * | 2017-05-26 | 2017-10-10 | 厦门致杰智能科技有限公司 | A kind of big flow stable-pressure device |
CN107237383B (en) * | 2017-05-26 | 2023-02-28 | 厦门倍杰特科技有限公司 | Large-flow voltage stabilizer |
Also Published As
Publication number | Publication date |
---|---|
AUPO359296A0 (en) | 1996-12-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4870992A (en) | Backflow prevention device | |
US2621889A (en) | Expansible sleeve type valve | |
US5634491A (en) | Flow control valve assembly | |
US4180096A (en) | Fill valve | |
AU727048B2 (en) | Non-return device | |
US5743291A (en) | Sanitary safety device | |
AU578320B2 (en) | Diverter valve for faucet spout and spray system | |
US4577653A (en) | Anti-siphon and anti-knock diverter valve | |
US3023767A (en) | Vacuum breaker | |
CA2364883A1 (en) | Flush valve assembly with flex tube | |
US4240606A (en) | Fill valve | |
JP2006511768A (en) | Fluid control valve | |
WO1998021419A1 (en) | Flow regulator | |
USRE32981E (en) | Anti-siphon and anti-knock diverter valve | |
CA2289388C (en) | Faucet side spray diverter | |
US4887637A (en) | Pressure compensating flow control device | |
US4198029A (en) | Throttling control valve | |
JPS6213552B2 (en) | ||
US2588555A (en) | Combined valve and water silencer | |
US5287877A (en) | Sewer drain trap primer valve | |
JP2005147163A (en) | Check valve structure and back flow preventing device | |
JP3725501B2 (en) | Constant pressure reducing valve for water supply | |
US5456289A (en) | Plumbing fixture with passage choke having a knockout | |
US3129721A (en) | Check valve | |
US5516077A (en) | Relief valve with integral drain line coupling |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA JP MX US |
|
NENP | Non-entry into the national phase |
Ref country code: JP Ref document number: 1998521950 Format of ref document f/p: F |