EP3001035A3 - Membrane pump - Google Patents

Membrane pump Download PDF

Info

Publication number
EP3001035A3
EP3001035A3 EP15002679.7A EP15002679A EP3001035A3 EP 3001035 A3 EP3001035 A3 EP 3001035A3 EP 15002679 A EP15002679 A EP 15002679A EP 3001035 A3 EP3001035 A3 EP 3001035A3
Authority
EP
European Patent Office
Prior art keywords
membrane
cell wall
working
pump
lifting drive
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
EP15002679.7A
Other languages
German (de)
French (fr)
Other versions
EP3001035A2 (en
EP3001035B1 (en
Inventor
Stephan Kaufmann
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.)
KNF Flodos AG
Original Assignee
KNF Flodos AG
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 KNF Flodos AG filed Critical KNF Flodos AG
Publication of EP3001035A2 publication Critical patent/EP3001035A2/en
Publication of EP3001035A3 publication Critical patent/EP3001035A3/en
Application granted granted Critical
Publication of EP3001035B1 publication Critical patent/EP3001035B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/14—Machines, pumps, or pumping installations having flexible working members having peristaltic action having plate-like flexible members

Landscapes

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

Abstract

Die Erfindung betrifft eine Membranpumpe (109) mit einem Pumpengehäuse (1), an dem eine Einwegzelle (2) lösbar fixierbar ist, die eine erste und eine zweite Zellwand (3, 4) hat, welche (3, 4) einen Arbeitsraum (5) zwischen sich umgrenzen, und mit einer Arbeitsmembran (6), die (6) mit einem oszillierenden Hubantrieb in Antriebsverbindung steht und die (6) auf ihrer dem Hubantrieb abgewandten Membranflachseite mit der flexiblen ersten Zellwand (3) lösbar koppelbar ist. Für die erfindungsgemäße Membranpumpe (109) ist kennzeichnend, dass in der Arbeitsmembrane (6) zum Entleeren des zwischen ihr und der ersten Zellwand (3) angeordneten Schadraumes (11) wenigstens ein Auslasskanal (12) mit einem Rückflussbehinderer oder einem Rückflussverhinderer vorgesehen ist (vgl. Fig. 1).

Figure imgaf001
The invention relates to a diaphragm pump (109) having a pump housing (1) on which a disposable cell (2) can be detachably fixed, which has a first and a second cell wall (3, 4), which (3, 4) has a working space (5 ) between them, and with a working diaphragm (6) which is in driving connection with an oscillating lifting drive and which (6) can be detachably coupled to the flexible first cell wall (3) on its membrane flat side facing away from the lifting drive. It is characteristic of the membrane pump (109) according to the invention that at least one outlet channel (12) with a reflux obstruction or a backflow preventer is provided in the working membrane (6) for emptying the dead space (11) between it and the first cell wall (3) (cf. Fig. 1).
Figure imgaf001
EP15002679.7A 2014-09-17 2015-09-16 Membrane pump Active EP3001035B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014013779.1A DE102014013779A1 (en) 2014-09-17 2014-09-17 diaphragm pump

Publications (3)

Publication Number Publication Date
EP3001035A2 EP3001035A2 (en) 2016-03-30
EP3001035A3 true EP3001035A3 (en) 2016-05-18
EP3001035B1 EP3001035B1 (en) 2017-03-08

Family

ID=54293010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15002679.7A Active EP3001035B1 (en) 2014-09-17 2015-09-16 Membrane pump

Country Status (3)

Country Link
US (1) US10260493B2 (en)
EP (1) EP3001035B1 (en)
DE (1) DE102014013779A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI659719B (en) * 2017-02-09 2019-05-21 瑞士商耐斯泰克公司 Membrane pump for beverage preparation module
US11598328B2 (en) * 2017-04-06 2023-03-07 Biosense Webster (Israel) Ltd. Disposable pump chamber for an infusion pump
DE202019106655U1 (en) 2019-11-29 2019-12-11 Schöning Gmbh pump closure
DE102021134629B4 (en) * 2021-12-23 2024-05-29 KNF Micro AG Pump head for a diaphragm pump

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055467A1 (en) * 1980-12-29 1982-07-07 LEWA Herbert Ott GmbH + Co. Diaphragm pump with a pressure relieved diaphragm
EP1072868A1 (en) * 1999-07-09 2001-01-31 Sawatec Ag Dosing device for liquids

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1110137A (en) * 1976-05-24 1981-10-06 Ingemar H. Lundquist Intravenous liquid pumping system and method
FR2517378B1 (en) * 1981-11-28 1988-03-11 Becker Erich MEMBRANE PUMP
JPS6073891U (en) 1983-10-28 1985-05-24 三菱電機株式会社 diaphragm pump
DE3408331C2 (en) * 1984-03-07 1986-06-12 Fresenius AG, 6380 Bad Homburg Pumping arrangement for medical purposes
US4743169A (en) * 1984-08-25 1988-05-10 Aisin Seiki Kabushiki Kaisha Diaphragm-type vacuum pump device
IL83259A (en) * 1987-07-20 1992-05-25 D F Lab Ltd Disposable cell and diaphragm pump for use of same
US6814547B2 (en) * 2002-05-24 2004-11-09 Baxter International Inc. Medical fluid pump
US7503910B2 (en) * 2006-02-01 2009-03-17 Carmeli Adahan Suctioning system, method and kit
DE102007005736A1 (en) * 2007-01-31 2008-08-14 Gardner Denver Thomas Gmbh Displacement pump for delivering a fluid with automatic adjustment to the compressibility of this fluid
US8192401B2 (en) * 2009-03-20 2012-06-05 Fresenius Medical Care Holdings, Inc. Medical fluid pump systems and related components and methods

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055467A1 (en) * 1980-12-29 1982-07-07 LEWA Herbert Ott GmbH + Co. Diaphragm pump with a pressure relieved diaphragm
EP1072868A1 (en) * 1999-07-09 2001-01-31 Sawatec Ag Dosing device for liquids

Also Published As

Publication number Publication date
US20160076529A1 (en) 2016-03-17
EP3001035A2 (en) 2016-03-30
US10260493B2 (en) 2019-04-16
EP3001035B1 (en) 2017-03-08
DE102014013779A1 (en) 2016-03-17

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