EP1134415A3 - Membrane clamping with elasticity compensation system - Google Patents

Membrane clamping with elasticity compensation system Download PDF

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Publication number
EP1134415A3
EP1134415A3 EP01105806A EP01105806A EP1134415A3 EP 1134415 A3 EP1134415 A3 EP 1134415A3 EP 01105806 A EP01105806 A EP 01105806A EP 01105806 A EP01105806 A EP 01105806A EP 1134415 A3 EP1134415 A3 EP 1134415A3
Authority
EP
European Patent Office
Prior art keywords
pump
diaphragm
clamping area
compensation system
pump 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.)
Granted
Application number
EP01105806A
Other languages
German (de)
French (fr)
Other versions
EP1134415B1 (en
EP1134415A2 (en
Inventor
Eberhard Prof. Dr.-Ing. Schlücker
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.)
Lewa GmbH
Original Assignee
Lewa GmbH
Lewa Herbert Ott GmbH and Co KG
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 Lewa GmbH, Lewa Herbert Ott GmbH and Co KG filed Critical Lewa GmbH
Publication of EP1134415A2 publication Critical patent/EP1134415A2/en
Publication of EP1134415A3 publication Critical patent/EP1134415A3/en
Application granted granted Critical
Publication of EP1134415B1 publication Critical patent/EP1134415B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06—Pumps having fluid drive
    • F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
    • 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
    • F04B43/0054—Special features particularities of the flexible members
    • F04B43/0063—Special features particularities of the flexible members bell-shaped flexible members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/04—PTFE [PolyTetraFluorEthylene]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Die Erfindung betrifft eine Membranpumpe mit hydraulisch angetriebener Membran (10), die an einem umlaufenden Rand zwischen einem Pumpendeckel (34) und einem Pumpengehäuse (36) in einem vorbestimmten radialen Einspannbereich (38) und mit einer vorbestimmten Andruckkraft zwischen Pumpendeckel (34) und Pumpengehäuse (36) derart eingespannt ist, daß die Andruckkraft unterhalb einer Fließgrenze des Membranwerkstoffes liegt. Hierbei ist im Einspannbereich (38) zusätzlich wenigstens ein elastisches Bauteil (40; 42; 50) vorgesehen, welches derart ausgebildet ist, daß es im Betrieb der Membranpumpe auftretende Verringerungen der Andruckkraft im Einspannbereich (38) der Membran (10) zwischen dem Pumpendeckel (34) und dem Pumpengehäuse (36) elastisch ausgleicht.

Figure 00000001
The invention relates to a diaphragm pump with a hydraulically driven diaphragm (10), which has a circumferential edge between a pump cover (34) and a pump housing (36) in a predetermined radial clamping area (38) and with a predetermined contact pressure between the pump cover (34) and the pump housing (36) is clamped in such a way that the pressure force is below a flow limit of the membrane material. At least one elastic component (40; 42; 50) is additionally provided in the clamping area (38), which is designed in such a way that there are reductions in the pressure force occurring during operation of the diaphragm pump in the clamping area (38) of the diaphragm (10) between the pump cover ( 34) and the pump housing (36) elastically compensates.
Figure 00000001
EP01105806A 2000-03-16 2001-03-08 Membrane clamping with elasticity compensation system Expired - Lifetime EP1134415B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10012904A DE10012904B4 (en) 2000-03-16 2000-03-16 Membrane clamping with elasticity compensation
DE10012904 2000-03-16

Publications (3)

Publication Number Publication Date
EP1134415A2 EP1134415A2 (en) 2001-09-19
EP1134415A3 true EP1134415A3 (en) 2002-07-17
EP1134415B1 EP1134415B1 (en) 2006-06-07

Family

ID=7635006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01105806A Expired - Lifetime EP1134415B1 (en) 2000-03-16 2001-03-08 Membrane clamping with elasticity compensation system

Country Status (3)

Country Link
US (1) US6582206B2 (en)
EP (1) EP1134415B1 (en)
DE (2) DE10012904B4 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6540833B1 (en) * 1998-01-09 2003-04-01 Fastar, Ltd. Moving head coating apparatus and method
US6913234B2 (en) * 2002-10-07 2005-07-05 Sondra Weiss Rod clamp
US6899530B2 (en) * 2002-10-31 2005-05-31 Wanner Engineering, Inc. Diaphragm pump with a transfer chamber vent with a longitudinal notch on the piston cylinder
US7090474B2 (en) * 2003-05-16 2006-08-15 Wanner Engineering, Inc. Diaphragm pump with overfill limiter
US8454324B2 (en) * 2004-03-18 2013-06-04 Precision Dispensing Systems Limited Pump
NZ531822A (en) * 2004-03-18 2007-08-31 Prec Dispensing Systems Ltd A membrane pump
DE102009023012A1 (en) * 2009-05-28 2010-12-16 G.S. Anderson Gmbh Diaphragm valve membrane
GB0915327D0 (en) * 2009-09-03 2009-10-07 Quanta Fluid Solution Ltd Pump
US9850889B2 (en) * 2010-02-02 2017-12-26 Dajustco Ip Holdings Inc. Hydraulic fluid control system for a diaphragm pump
US8596648B2 (en) 2010-10-22 2013-12-03 Oshkosh Corporation Pump for vehicle suspension system
US9255512B2 (en) * 2011-08-22 2016-02-09 Cummins Emission Solutions, Inc. Urea injection systems wash cycles
GB201305755D0 (en) 2013-03-28 2013-05-15 Quanta Fluid Solutions Ltd Re-Use of a Hemodialysis Cartridge
GB201314512D0 (en) 2013-08-14 2013-09-25 Quanta Fluid Solutions Ltd Dual Haemodialysis and Haemodiafiltration blood treatment device
GB201409796D0 (en) 2014-06-02 2014-07-16 Quanta Fluid Solutions Ltd Method of heat sanitization of a haemodialysis water circuit using a calculated dose
US9964106B2 (en) 2014-11-04 2018-05-08 Wanner Engineering, Inc. Diaphragm pump with dual spring overfill limiter
DK201570293A1 (en) * 2015-05-19 2016-12-12 Nel Hydrogen As Diaphragm compressor with an oblong shaped chamber
GB201523104D0 (en) 2015-12-30 2016-02-10 Quanta Fluid Solutions Ltd Dialysis machine
WO2017177174A1 (en) 2016-04-08 2017-10-12 Oshkosh Corporation Leveling system for lift device
US10920763B2 (en) 2016-09-01 2021-02-16 Wanner Engineering, Inc. Diaphragm with edge seal
GB201622119D0 (en) 2016-12-23 2017-02-08 Quanta Dialysis Tech Ltd Improved valve leak detection system
KR20210003177A (en) 2018-04-18 2021-01-11 워너 엔지니어링 인코포레이티드 Device to protect diaphragm pump from differential pressure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1373780A (en) * 1963-08-19 1964-10-02 Improvements to diaphragm pumps
DE1503429A1 (en) * 1963-04-26 1969-04-03 Andreas Hofer Hochdruck Appbau Sealing ring for extra high pressure compressor with diaphragm actuation
DE2620228A1 (en) * 1976-05-07 1977-11-10 Bran & Luebbe Hydraulically actuated triple diaphragm pump - has middle diaphragm slots connected to liq. filled duct with resilient seal as rupture indicator
EP0320091A1 (en) * 1987-11-13 1989-06-14 Plf Acquisition Subsidiary Inc. Apparatus and method for sensing diaphragm failures in reciprocating pumps
DE4143371A1 (en) * 1991-11-08 1993-05-13 Almatec Tech Innovationen Gmbh Membrane for double membrane pump - has oppositely placed bulges one of which carries tensioning ring in groove
US5860793A (en) * 1995-12-01 1999-01-19 Pulsafeeder, Inc. Diaphragm metering pump with push to prime air bleeder valve

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2242582A (en) * 1938-09-29 1941-05-20 Leo L Williams Fuel pump
US4275997A (en) * 1979-08-09 1981-06-30 Parker-Hannifin Corporation Hydraulic pump with proportional pressure controller
EP0055467B1 (en) * 1980-12-29 1984-12-05 LEWA Herbert Ott GmbH + Co. Diaphragm pump with a pressure relieved diaphragm
US4791805A (en) * 1985-06-07 1988-12-20 Expertek, Inc. Fuel tank leak detection apparatus
EP0223301B1 (en) * 1985-11-20 1990-01-31 Viscosuisse Sa Method for producing a weft thread from poy polyester
US4741360A (en) * 1987-09-14 1988-05-03 Tom Mcguane Industries, Inc. Fuel pressure regulator
US5062770A (en) * 1989-08-11 1991-11-05 Systems Chemistry, Inc. Fluid pumping apparatus and system with leak detection and containment
DE4018464A1 (en) * 1990-06-08 1991-12-12 Ott Kg Lewa DIAPHRAGM FOR A HYDRAULICALLY DRIVED DIAPHRAGM PUMP
US5217797A (en) * 1992-02-19 1993-06-08 W. L. Gore & Associates, Inc. Chemically resistant diaphragm
US5279504A (en) * 1992-11-02 1994-01-18 Williams James F Multi-diaphragm metering pump
JPH074359A (en) * 1993-05-06 1995-01-10 Almatec Technische Innovationen Gmbh Diaphragm for pump
US5560279A (en) * 1995-03-16 1996-10-01 W. L. Gore & Associates, Inc. Pre-failure sensing diaphragm
WO1997030283A1 (en) * 1996-02-14 1997-08-21 Mikuni Adec Corporation Diaphragm-holding synthetic resin assembly
JP3083275B2 (en) * 1997-09-18 2000-09-04 株式会社ワイ・テイ・エス Double diaphragm pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1503429A1 (en) * 1963-04-26 1969-04-03 Andreas Hofer Hochdruck Appbau Sealing ring for extra high pressure compressor with diaphragm actuation
FR1373780A (en) * 1963-08-19 1964-10-02 Improvements to diaphragm pumps
DE2620228A1 (en) * 1976-05-07 1977-11-10 Bran & Luebbe Hydraulically actuated triple diaphragm pump - has middle diaphragm slots connected to liq. filled duct with resilient seal as rupture indicator
EP0320091A1 (en) * 1987-11-13 1989-06-14 Plf Acquisition Subsidiary Inc. Apparatus and method for sensing diaphragm failures in reciprocating pumps
DE4143371A1 (en) * 1991-11-08 1993-05-13 Almatec Tech Innovationen Gmbh Membrane for double membrane pump - has oppositely placed bulges one of which carries tensioning ring in groove
US5860793A (en) * 1995-12-01 1999-01-19 Pulsafeeder, Inc. Diaphragm metering pump with push to prime air bleeder valve

Also Published As

Publication number Publication date
DE10012904A1 (en) 2001-10-04
US6582206B2 (en) 2003-06-24
EP1134415B1 (en) 2006-06-07
DE50109995D1 (en) 2006-07-20
EP1134415A2 (en) 2001-09-19
DE10012904B4 (en) 2004-08-12
US20010043872A1 (en) 2001-11-22

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