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EP0919724A3 - Hydraulically driven double acting diaphragm pump - Google Patents

Hydraulically driven double acting diaphragm pump Download PDF

Info

Publication number
EP0919724A3
EP0919724A3 EP98830707A EP98830707A EP0919724A3 EP 0919724 A3 EP0919724 A3 EP 0919724A3 EP 98830707 A EP98830707 A EP 98830707A EP 98830707 A EP98830707 A EP 98830707A EP 0919724 A3 EP0919724 A3 EP 0919724A3
Authority
EP
European Patent Office
Prior art keywords
diaphragm pump
double acting
hydraulically driven
driven double
acting diaphragm
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
EP98830707A
Other languages
German (de)
French (fr)
Other versions
EP0919724B1 (en
EP0919724A2 (en
Inventor
Giuseppe Corallo
Aldo Franchi
Luciano Cardinali
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.)
Agenzia Nazionale per le Nuove Tecnologie lEnergia e lo Sviluppo Economico Sostenibile ENEA
Original Assignee
Agenzia Nazionale per le Nuove Tecnologie lEnergia e lo Sviluppo Economico Sostenibile ENEA
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 Agenzia Nazionale per le Nuove Tecnologie lEnergia e lo Sviluppo Economico Sostenibile ENEA filed Critical Agenzia Nazionale per le Nuove Tecnologie lEnergia e lo Sviluppo Economico Sostenibile ENEA
Publication of EP0919724A2 publication Critical patent/EP0919724A2/en
Publication of EP0919724A3 publication Critical patent/EP0919724A3/en
Application granted granted Critical
Publication of EP0919724B1 publication Critical patent/EP0919724B1/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
    • F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve
    • F04B43/0733—Pumps having fluid drive the actuating fluid being controlled by at least one valve with fluid-actuated pump inlet or outlet valves; with two or more pumping chambers in series

Landscapes

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

Abstract

A pumping device for liquids or aeriform substances of a double-acting reciprocating type, characterized in that it comprises a first and a second pumping unit provided with a separating element between a working fluid and a pumped fluid, and connected to an oil control assembly arranged to induce reciprocating motions in said separating elements of said units by means of pressurized oil so as to produce a suction phase in one unit and a delivery phase in the other unit and viceversa, in a continuous way.
EP98830707A 1997-11-28 1998-11-25 Hydraulically driven double acting diaphragm pump Expired - Lifetime EP0919724B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97RM000739A IT1297087B1 (en) 1997-11-28 1997-11-28 DEVICE FOR PUMPING LIQUIDS OR AERIFORMS, WITH DOUBLE ACTING ALTERNATIVE MOTION OBTAINED BY HYDRAULIC SYSTEM.
ITRM970739 1997-11-28

Publications (3)

Publication Number Publication Date
EP0919724A2 EP0919724A2 (en) 1999-06-02
EP0919724A3 true EP0919724A3 (en) 2000-04-19
EP0919724B1 EP0919724B1 (en) 2005-07-06

Family

ID=11405377

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98830707A Expired - Lifetime EP0919724B1 (en) 1997-11-28 1998-11-25 Hydraulically driven double acting diaphragm pump

Country Status (3)

Country Link
EP (1) EP0919724B1 (en)
DE (1) DE69830775T2 (en)
IT (1) IT1297087B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101245779B (en) * 2008-03-07 2010-04-21 上海凯泉泵业（集团）有限公司 Oil balancing system of reciprocating oil isolation membrane pump fluid end
DE202008010872U1 (en) 2008-08-14 2010-02-25 Bran+Luebbe Gmbh pump device
EP2154371B1 (en) 2008-08-14 2018-09-19 Bran + Lübbe GmbH Pumping device
EP2740935A1 (en) * 2012-12-05 2014-06-11 Smartbrain Fluid device
DE102021125005A1 (en) 2021-09-28 2023-03-30 Lewa Gmbh Diaphragm pump with hydraulic drive

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703055A (en) * 1950-07-21 1955-03-01 Shell Dev Diaphragm-type mud pump
FR2549904A1 (en) * 1983-07-27 1985-02-01 Paul Hydraulique High pressure pump for liquid
US4523901A (en) * 1981-10-17 1985-06-18 Barmag Barmer Maschinenfabrick Ag Control apparatus for a positive displacement reciprocating pump
US4543044A (en) * 1983-11-09 1985-09-24 E. I. Du Pont De Nemours And Company Constant-flow-rate dual-unit pump
EP0568742A1 (en) * 1992-05-08 1993-11-10 Cooper Industries, Inc. Transfer of production fluid from a well
EP0627555A1 (en) * 1993-04-16 1994-12-07 Enea Ente Per Le Nuove Tecnologie, L'energia E L'ambiente Device for pumping by a diaphragm pump operated by a hydraulic circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703055A (en) * 1950-07-21 1955-03-01 Shell Dev Diaphragm-type mud pump
US4523901A (en) * 1981-10-17 1985-06-18 Barmag Barmer Maschinenfabrick Ag Control apparatus for a positive displacement reciprocating pump
FR2549904A1 (en) * 1983-07-27 1985-02-01 Paul Hydraulique High pressure pump for liquid
US4543044A (en) * 1983-11-09 1985-09-24 E. I. Du Pont De Nemours And Company Constant-flow-rate dual-unit pump
EP0568742A1 (en) * 1992-05-08 1993-11-10 Cooper Industries, Inc. Transfer of production fluid from a well
EP0627555A1 (en) * 1993-04-16 1994-12-07 Enea Ente Per Le Nuove Tecnologie, L'energia E L'ambiente Device for pumping by a diaphragm pump operated by a hydraulic circuit

Also Published As

Publication number Publication date
DE69830775T2 (en) 2006-05-18
ITRM970739A1 (en) 1999-05-28
IT1297087B1 (en) 1999-08-03
EP0919724B1 (en) 2005-07-06
EP0919724A2 (en) 1999-06-02
DE69830775D1 (en) 2005-08-11

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