US20140234132A1 - Pump, In Particular Pneumatic Pump - Google Patents

Pump, In Particular Pneumatic Pump Download PDF

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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
Application number
US14/123,998
Other languages
English (en)
Inventor
Erich Dörfler
Ronny Gehlmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfmeier Praezision SE
Original Assignee
Alfmeier Praezision AG Baugruppen und Systemlosungen
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alfmeier Praezision AG Baugruppen und Systemlosungen filed Critical Alfmeier Praezision AG Baugruppen und Systemlosungen
Priority to US14/097,484 priority Critical patent/US9261092B2/en
Assigned to Alfmeier Präzision AG Baugruppen und Systemlösungen reassignment Alfmeier Präzision AG Baugruppen und Systemlösungen ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GEHLMANN, Ronny, Dörfler, Erich
Publication of US20140234132A1 publication Critical patent/US20140234132A1/en
Abandoned legal-status Critical Current

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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)
US14/123,998 2011-09-02 2012-09-03 Pump, In Particular Pneumatic Pump Abandoned US20140234132A1 (en)

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)

* Cited by examiner, † Cited by third party
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)

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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

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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

Patent Citations (12)

* Cited by examiner, † Cited by third party
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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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