EP1022465A3 - Hydraulically driven diaphragm pump - Google Patents

Hydraulically driven diaphragm pump Download PDF

Info

Publication number
EP1022465A3
EP1022465A3 EP00100956A EP00100956A EP1022465A3 EP 1022465 A3 EP1022465 A3 EP 1022465A3 EP 00100956 A EP00100956 A EP 00100956A EP 00100956 A EP00100956 A EP 00100956A EP 1022465 A3 EP1022465 A3 EP 1022465A3
Authority
EP
European Patent Office
Prior art keywords
hydraulically driven
diaphragm pump
driven diaphragm
diaphragm
radial direction
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.)
Withdrawn
Application number
EP00100956A
Other languages
German (de)
French (fr)
Other versions
EP1022465A2 (en
Inventor
Ralph Heimüller
Eberhard Dr. 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
Lewa Herbert Ott GmbH and Co KG
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 EP1022465A2 publication Critical patent/EP1022465A2/en
Publication of EP1022465A3 publication Critical patent/EP1022465A3/en
Withdrawn legal-status Critical Current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

Bei einer Membranpumpe mit hydraulisch angetriebener Membran (10a, 10b, 10c), die in radialer Richtung wellenförmig verläuft, ist die Anordnung derart getroffen, daß die Wellenlänge und/oder die Amplitude der wellenförmigen Ausbildung der Membran (10a, 10b, 10c) in radialer Richtung variabel ausgestaltet ist.

Figure 00000001
In the case of a diaphragm pump with a hydraulically driven diaphragm (10a, 10b, 10c) which is undulating in the radial direction, the arrangement is such that the wavelength and / or the amplitude of the undulating configuration of the diaphragm (10a, 10b, 10c) is radial Direction is variable.
Figure 00000001
EP00100956A 1999-01-19 2000-01-18 Hydraulically driven diaphragm pump Withdrawn EP1022465A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19901893 1999-01-19
DE19901893A DE19901893C1 (en) 1999-01-19 1999-01-19 Hydraulically-driven membrane pump has membrane with concentric waves preventing localized bulging and damage, whilst assuring maximum volumetric efficiency

Publications (2)

Publication Number Publication Date
EP1022465A2 EP1022465A2 (en) 2000-07-26
EP1022465A3 true EP1022465A3 (en) 2000-12-27

Family

ID=7894700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00100956A Withdrawn EP1022465A3 (en) 1999-01-19 2000-01-18 Hydraulically driven diaphragm pump

Country Status (3)

Country Link
US (1) US6327960B1 (en)
EP (1) EP1022465A3 (en)
DE (1) DE19901893C1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6824364B2 (en) 2002-09-20 2004-11-30 Rimcraft Technologies, Inc. Master/slave pump assembly employing diaphragm pump
JP2006112620A (en) * 2004-09-14 2006-04-27 Aisin Aw Co Ltd Diaphragm, and solenoid valve comprising the same
DE102006044253B3 (en) * 2006-09-16 2008-03-27 Thomas Magnete Gmbh Membrane, for a hydraulic membrane pump for diesel exhaust cleaning, has a recess to define the exact delivery dose volume
CA2705898C (en) 2007-11-21 2020-08-25 Smith & Nephew Plc Wound dressing
GB201015656D0 (en) 2010-09-20 2010-10-27 Smith & Nephew Pressure control apparatus
US8596648B2 (en) 2010-10-22 2013-12-03 Oshkosh Corporation Pump for vehicle suspension system
US9084845B2 (en) 2011-11-02 2015-07-21 Smith & Nephew Plc Reduced pressure therapy apparatuses and methods of using same
RU2014138377A (en) 2012-03-20 2016-05-20 СМИТ ЭНД НЕФЬЮ ПиЭлСи REDUCED PRESSURE THERAPY SYSTEM OPERATION MANAGEMENT BASED ON DETERMINING THE THRESHOLD THRESHOLD
US9427505B2 (en) 2012-05-15 2016-08-30 Smith & Nephew Plc Negative pressure wound therapy apparatus
EP3060806A4 (en) 2013-10-11 2017-07-12 Checkpoint Fluidic Systems International, Ltd. Scalable pumping mechanism utilizing anti-synchronized poly-diaphragm stack
US20160169218A1 (en) * 2014-11-14 2016-06-16 Checkpoint Fluidic Systems International, Ltd. Metallic Sandwich Diaphragm Pump Mechanism
US10682446B2 (en) 2014-12-22 2020-06-16 Smith & Nephew Plc Dressing status detection for negative pressure wound therapy
CN109071193B (en) 2016-04-08 2020-07-17 奥斯克什公司 Leveling system for hoisting device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1927617A (en) * 1930-01-15 1933-09-19 Schmidt Rudolf Piston engine or piston pump
FR787226A (en) * 1934-06-13 1935-09-19 Improvement in compressors or diaphragm pumps
GB540036A (en) * 1939-12-18 1941-10-02 Vickers Inc Improvements in or relating to accumulators for hydraulic power systems
JPH09286659A (en) * 1996-04-22 1997-11-04 Ngk Spark Plug Co Ltd Ceramic diaphragm and its manufacture

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1572970A (en) * 1923-12-07 1926-02-16 Taylor Instrument Co Fluid-pressure diaphragm
US2150771A (en) * 1934-12-17 1939-03-14 Kollsman Paul Self-compensating aneroid
GB521273A (en) * 1938-11-10 1940-05-16 Smith & Sons Ltd S Improvements in or relating to pressure-sensitive capsules
US2698766A (en) * 1951-11-19 1955-01-04 Cutler Hammer Inc Pressure responsive power elements
US2760260A (en) * 1952-12-17 1956-08-28 Frederick C Melchior Method of rolling capsules
US4375182A (en) * 1980-10-31 1983-03-01 Z John R Ultra-sensitive diaphragm with dual stress-relief structures
DE19631081C1 (en) * 1996-08-01 1997-10-09 Helmut Heidrich Heavy-duty diaphragm with concentric grooves and ridges
US6145430A (en) * 1998-06-30 2000-11-14 Ingersoll-Rand Company Selectively bonded pump diaphragm

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1927617A (en) * 1930-01-15 1933-09-19 Schmidt Rudolf Piston engine or piston pump
FR787226A (en) * 1934-06-13 1935-09-19 Improvement in compressors or diaphragm pumps
GB540036A (en) * 1939-12-18 1941-10-02 Vickers Inc Improvements in or relating to accumulators for hydraulic power systems
JPH09286659A (en) * 1996-04-22 1997-11-04 Ngk Spark Plug Co Ltd Ceramic diaphragm and its manufacture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 03 27 February 1998 (1998-02-27) *

Also Published As

Publication number Publication date
DE19901893C1 (en) 2000-06-15
EP1022465A2 (en) 2000-07-26
US6327960B1 (en) 2001-12-11

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