US20140234132A1 - Pump, In Particular Pneumatic Pump - Google Patents
Pump, In Particular Pneumatic Pump Download PDFInfo
- Publication number
- US20140234132A1 US20140234132A1 US14/123,998 US201214123998A US2014234132A1 US 20140234132 A1 US20140234132 A1 US 20140234132A1 US 201214123998 A US201214123998 A US 201214123998A US 2014234132 A1 US2014234132 A1 US 2014234132A1
- Authority
- US
- United States
- Prior art keywords
- pump
- valve
- housing
- spring
- pump according
- 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
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
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/045—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms with in- or outlet valve arranged in the plate-like pumping flexible members
-
- 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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0045—Special features with a number of independent working chambers which are actuated successively by one mechanism
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/03—Stopping, starting, unloading or idling control by means of valves
- F04B49/035—Bypassing
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
Definitions
- a pump of the type described above is additionally equipped with a pressure relief valve used especially when a vehicle's seat bladders are being filled because they can leak under an excess pressure load.
- the pressure relief valve in turn, has a valve element that closes a pressure relief opening and in closing direction rests on a spring element arranged in a spring space.
- the excess pressure valve opens when there is a limit pressure set by the spring element.
- the limit pressure can vary depending on the application. So far, the approach has been to use springs of various strengths in the assembly of the pump, but this entails a corresponding logistical and technical assembly effort. Additionally, there is the risk of that the wrong springs could be fit into the pump during assembly.
- the task of the invention is to suggest a pump of the type described above to remedy this situation.
- the inner wall of the spring space to have a regulating area extending along the closing direction by holding the excessively dimensioned stop element in a clamped way with regard to the regulating area, whereby the spring space has an actuating opening through which the stop element advancing in closing direction is accessible with a tappet or the like, for example.
- the clamping force can be chosen through corresponding dimensional ratios in such a way that the stop element impinged on by the spring element against the closing direction is reliably held in the intended position in the adjustment area.
- a more or less elastic and/or plastic deformation of the stop element takes place and/or of a housing wall that circumscribes the spring space.
- a stop element made of a material harder than the one used for the pump's housing or for the housing wall that circumscribes the spring space is advantageous.
- the stop element is pressed into the material of a housing wall that circumscribes the spring space.
- a metallic stop element is preferably used.
- a stop element executed as a sphere is used, in which case the adjustment area that acts together with the stop element is circularly cylindrical, i.e. forms the surface shell of a circular cylinder.
- This design rules out a wrong assembly caused by erroneously positioning the stop element in the spring space, for example in a wrong turning position with regard to an axis running parallel to the closing direction.
- noise reduction is achieved by having the lower-pressure side of the pressure relief valve end in the spring space.
- the spring space With regard to its surroundings, the spring space can be fully closed so there is no fluid connection to the atmosphere and therefore the propagation of an airborne noise generated inside the spring space is prevented from reaching the exterior.
- this bore hole can have a very small flow cross-section. It is different with the inlet opening, whose flow cross-section cannot be reduced at will so that an airborne noise generated in the pressure relief valve can propagate almost unhindered into the surroundings.
- FIG. 1 A perspective lateral view of a pump with a housing encompassing one upper part of the housing, one lower part of the housing, an upper and a lower support, and a motor,
- FIG. 7 A longitudinal cut through the pump housing with a cutting line corresponding to line VII-VII in FIGS. 4 & 5 ,
- FIG. 9 A partial sectional view of another embodiment of a pump, in which the spring space is connected to the surroundings via a bore hole;
- the pump 1 shown in the illustrations is intended to be installed in a vehicle seat and serves for filling seat bladders to change the contour of a vehicle seat in the sitting or backrest area, for example.
- the pump 1 comprises a housing 2 (especially made of plastic) on which an outlet connection piece 3 has been form-fitted.
- the side of the housing 2 supporting the outlet connection piece 3 will also be referred to as upper side 4 below.
- a motor 6 especially an electric motor, has been flanged onto the lower side 5 of the housing 2 .
- the housing 2 comprises an upper part 7 and a lower part 8 , in which case the upper part 7 supports the connection piece 3 and forms the upper side 4 .
- the inlet valves 30 and the outlet valves 33 have in each case a valve element 30 a that is freely cut as tongue-shaped parts from a valve membrane 13 forming an entire membrane and that in each case controls an inlet opening 30 and an outlet opening 33 c located in the upper support 9 .
- Each one of the valve elements 30 a acts with a seal seat 30 b protruding from the underside of the upper part of the housing 7 ( FIGS. 3 & 6 ).
- the seal seats 30 b are sections of a ring-shaped closed seal seat 32 that separates the lower pressure side of the pump 1 from its pressurized side.
- the valve seats 33 b assigned to the outlet valves 33 protrude from the upper side of the upper support 9 . In the situation shown in FIG. 7 , the valve element 33 a lies on top of the valve seat 33 b that encompasses the outlet opening 33 c.
- all inlet ports 35 end in a collecting space 41 (located above the valve membrane 13 ) arranged centrally on the pump in the direction of the arrow 40 in FIG. 1 in the top view.
- the collecting space 45 is circumscribed towards the top by the upper part of the housing 7 and towards the bottom by a central area of the valve membrane 13 that comprises the valve elements 30 a of the inlet valves 30 .
- the stop element 51 is inserted into the spring space 49 through the assembly opening 50 while the pump is being assembled and moved in closing direction 31 until the spring force exerted by the threaded compression spring 48 correlates with the desired limit pressure.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/097,484 US9261092B2 (en) | 2011-09-02 | 2013-12-05 | Pump, in particular pneumatic pump |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011082105.8 | 2011-09-02 | ||
DE102011082105 | 2011-09-02 | ||
PCT/EP2012/067126 WO2013030408A1 (de) | 2011-09-02 | 2012-09-03 | Pumpe, insbesondere pneumatikpumpe |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/067126 A-371-Of-International WO2013030408A1 (de) | 2011-09-02 | 2012-09-03 | Pumpe, insbesondere pneumatikpumpe |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/097,484 Continuation US9261092B2 (en) | 2011-09-02 | 2013-12-05 | Pump, in particular pneumatic pump |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140234132A1 true US20140234132A1 (en) | 2014-08-21 |
Family
ID=46832367
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/123,998 Abandoned US20140234132A1 (en) | 2011-09-02 | 2012-09-03 | Pump, In Particular Pneumatic Pump |
US14/097,484 Active US9261092B2 (en) | 2011-09-02 | 2013-12-05 | Pump, in particular pneumatic pump |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/097,484 Active US9261092B2 (en) | 2011-09-02 | 2013-12-05 | Pump, in particular pneumatic pump |
Country Status (4)
Country | Link |
---|---|
US (2) | US20140234132A1 (de) |
CN (2) | CN103717897A (de) |
DE (3) | DE112012005082B3 (de) |
WO (1) | WO2013030408A1 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103717897A (zh) * | 2011-09-02 | 2014-04-09 | 建筑组合及解决系统阿尔夫梅尔精密股份公司 | 泵,特别是气动泵 |
DE102012218012A1 (de) * | 2012-10-02 | 2014-04-03 | Alfmeier Präzision AG Baugruppen und Systemlösungen | Gehäuse mit zwei aus Kunststoff gefertigten Gehäuseteilen |
CN106460743B (zh) * | 2014-04-21 | 2017-12-22 | 斯坦蒂内有限责任公司 | 用于单柱塞燃油泵的减压阀 |
US9920753B2 (en) | 2014-08-13 | 2018-03-20 | Nextern, Inc. | Canted off-axis driver for quiet pneumatic pumping |
JP6593579B2 (ja) * | 2015-04-27 | 2019-10-23 | ミツミ電機株式会社 | 小型ポンプおよびそれに使用されるダイヤフラム組立体 |
CN107654353B (zh) * | 2016-07-25 | 2019-04-19 | 厦门科际精密器材有限公司 | 气泵 |
US10458402B2 (en) * | 2016-07-25 | 2019-10-29 | Xiamen Conjoin Electronics Technology Co., Ltd. | Micro water pump capable of controlling flow precisely |
EP3330540B1 (de) * | 2016-12-05 | 2019-06-19 | Burckhardt Compression AG | Poppetventil |
CN108331741A (zh) * | 2017-01-20 | 2018-07-27 | 研能科技股份有限公司 | 流体输送装置 |
CN109838371A (zh) * | 2017-11-29 | 2019-06-04 | 厦门科际精密器材有限公司 | 隔膜泵 |
CN109838369A (zh) * | 2017-11-29 | 2019-06-04 | 厦门科际精密器材有限公司 | 隔膜泵 |
DE102018207800B4 (de) | 2017-11-29 | 2024-04-18 | Xiamen Koge Micro Tech Co., Ltd. | Membranpumpe mit verringertem Betriebsgeräusch während einer Druckentlastung |
CN109838370A (zh) * | 2017-11-29 | 2019-06-04 | 厦门科际精密器材有限公司 | 隔膜泵 |
DE102018102120B4 (de) * | 2017-11-29 | 2022-04-28 | Xiamen Koge Micro Tech Co., Ltd. | Membranpumpe |
CN108869248A (zh) * | 2018-08-24 | 2018-11-23 | 新发展(长春)汽车自控系统有限公司 | 气动腰托专用气泵 |
CN110905788B (zh) * | 2018-09-17 | 2021-07-02 | 科际精密股份有限公司 | 气动泵 |
CN110949214A (zh) * | 2018-09-27 | 2020-04-03 | 科际精密股份有限公司 | 用以调整气囊的泵阀组合装置 |
CN111075698B (zh) * | 2018-10-19 | 2021-10-15 | 科际精密股份有限公司 | 用以调整气囊的泵阀组合装置 |
KR102537065B1 (ko) * | 2018-11-15 | 2023-05-26 | 탕트링 시팅 테크놀로지 아이엔씨. | 외부 압력 릴리프 밸브를 갖는 에어 펌프 |
CN112483368B (zh) * | 2019-09-11 | 2024-04-16 | 厦门科际精密器材有限公司 | 隔膜泵 |
US20210180585A1 (en) * | 2019-12-13 | 2021-06-17 | Xiamen Koge Micro Tech Co., Ltd. | Mini air pump |
DE102021133287A1 (de) | 2021-12-15 | 2023-06-15 | Faurecia Autositze Gmbh | Verfahren zur Manipulation eines Fluidaktuators sowie Funktionseinrichtung zur Durchführung des Verfahrens |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3953154A (en) * | 1971-12-01 | 1976-04-27 | Wanner William F | Pressure control and unloader valve |
US4576554A (en) * | 1983-11-08 | 1986-03-18 | Hydromatik Gmbh | Swashplate axial piston pump |
US4614481A (en) * | 1985-06-10 | 1986-09-30 | Vanderjagt John A | Pump with replaceable cartridge |
US5341161A (en) * | 1991-06-14 | 1994-08-23 | Canon Kabushiki Kaisha | Ink recorder including a sealing member for an ink storage section |
US5749709A (en) * | 1996-05-15 | 1998-05-12 | Du; Benjamin R. | Positive displacement pump including modular pump component |
US5893609A (en) * | 1997-06-20 | 1999-04-13 | Mccord Winn Textron Inc. | Air pumping system for an automotive seat |
US6135144A (en) * | 1999-11-23 | 2000-10-24 | Thomas Industries, Inc. | Pressure relief valve assembly |
US6422212B1 (en) * | 1998-04-24 | 2002-07-23 | Robert Bosch Gmbh | On-off valve in a fuel injection system for internal combustion engines |
US6692117B1 (en) * | 1997-07-14 | 2004-02-17 | Owens-Illinois Closure Inc. | Liquid containment and dispensing device with improved flow control valve |
US20080206078A1 (en) * | 2007-02-28 | 2008-08-28 | Jtekt Corporation | Electric pump unit and electric oil pump apparatus |
US20130161332A1 (en) * | 2010-05-06 | 2013-06-27 | Jeff Yager | Vehicle fuel tank |
US8568109B2 (en) * | 2009-10-01 | 2013-10-29 | Alfred Kaercher Gmbh & Co. Kg | Pump for a high-pressure cleaning device |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1049017A (en) * | 1911-09-15 | 1912-12-31 | Double Body Bolster Co | Buffing mechanism for car-platforms. |
US4049017A (en) * | 1976-04-12 | 1977-09-20 | Henry Valve Company | Adjustable relief valve |
US5203803A (en) * | 1991-04-03 | 1993-04-20 | Aquatec Water Systems, Inc. | Reverse osmosis water purifier booster pump system |
JP3834745B2 (ja) * | 1999-05-11 | 2006-10-18 | 応研精工株式会社 | 小型ポンプ |
US20030047216A1 (en) * | 2001-09-07 | 2003-03-13 | Kelly Paul A. | Pop-type pressure relief valve |
JP2005076534A (ja) * | 2003-08-29 | 2005-03-24 | Mitsumi Electric Co Ltd | 排気弁装置付小型ポンプ及びその排気弁装置付小型ポンプを使用した血圧計 |
CN200943570Y (zh) * | 2006-08-04 | 2007-09-05 | 黄旭浩 | 一种微型隔膜泵 |
JP2008215232A (ja) * | 2007-03-05 | 2008-09-18 | Mitsumi Electric Co Ltd | 小型ポンプ |
JP5223436B2 (ja) * | 2008-04-16 | 2013-06-26 | オムロンヘルスケア株式会社 | 逆止弁構造、ダイヤフラムポンプおよび血圧計 |
CN101799080B (zh) * | 2009-11-09 | 2012-11-14 | 陈广强 | 双球刚柔变形密封阀 |
CN103717897A (zh) * | 2011-09-02 | 2014-04-09 | 建筑组合及解决系统阿尔夫梅尔精密股份公司 | 泵,特别是气动泵 |
-
2012
- 2012-09-03 CN CN201280027521.5A patent/CN103717897A/zh active Pending
- 2012-09-03 WO PCT/EP2012/067126 patent/WO2013030408A1/de active Application Filing
- 2012-09-03 DE DE112012005082.7T patent/DE112012005082B3/de active Active
- 2012-09-03 DE DE202012013619.4U patent/DE202012013619U1/de not_active Expired - Lifetime
- 2012-09-03 DE DE112012002756.6T patent/DE112012002756B4/de active Active
- 2012-09-03 CN CN201410006620.6A patent/CN103711682B/zh active Active
- 2012-09-03 US US14/123,998 patent/US20140234132A1/en not_active Abandoned
-
2013
- 2013-12-05 US US14/097,484 patent/US9261092B2/en active Active
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3953154A (en) * | 1971-12-01 | 1976-04-27 | Wanner William F | Pressure control and unloader valve |
US4576554A (en) * | 1983-11-08 | 1986-03-18 | Hydromatik Gmbh | Swashplate axial piston pump |
US4614481A (en) * | 1985-06-10 | 1986-09-30 | Vanderjagt John A | Pump with replaceable cartridge |
US5341161A (en) * | 1991-06-14 | 1994-08-23 | Canon Kabushiki Kaisha | Ink recorder including a sealing member for an ink storage section |
US5749709A (en) * | 1996-05-15 | 1998-05-12 | Du; Benjamin R. | Positive displacement pump including modular pump component |
US5893609A (en) * | 1997-06-20 | 1999-04-13 | Mccord Winn Textron Inc. | Air pumping system for an automotive seat |
US6692117B1 (en) * | 1997-07-14 | 2004-02-17 | Owens-Illinois Closure Inc. | Liquid containment and dispensing device with improved flow control valve |
US6422212B1 (en) * | 1998-04-24 | 2002-07-23 | Robert Bosch Gmbh | On-off valve in a fuel injection system for internal combustion engines |
US6135144A (en) * | 1999-11-23 | 2000-10-24 | Thomas Industries, Inc. | Pressure relief valve assembly |
US20080206078A1 (en) * | 2007-02-28 | 2008-08-28 | Jtekt Corporation | Electric pump unit and electric oil pump apparatus |
US8568109B2 (en) * | 2009-10-01 | 2013-10-29 | Alfred Kaercher Gmbh & Co. Kg | Pump for a high-pressure cleaning device |
US20130161332A1 (en) * | 2010-05-06 | 2013-06-27 | Jeff Yager | Vehicle fuel tank |
Also Published As
Publication number | Publication date |
---|---|
CN103717897A (zh) | 2014-04-09 |
WO2013030408A1 (de) | 2013-03-07 |
DE112012002756A5 (de) | 2014-06-26 |
DE112012005082B3 (de) | 2018-04-26 |
CN103711682A (zh) | 2014-04-09 |
CN103711682B (zh) | 2016-10-26 |
DE202012013619U1 (de) | 2018-08-17 |
US9261092B2 (en) | 2016-02-16 |
DE112012002756B4 (de) | 2021-05-12 |
US20140161654A1 (en) | 2014-06-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ALFMEIER PRAEZISION AG BAUGRUPPEN UND SYSTEMLOESUN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DOERFLER, ERICH;GEHLMANN, RONNY;SIGNING DATES FROM 20140226 TO 20140306;REEL/FRAME:032808/0762 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |