EP0874157A3 - Rotary positive displacement pump - Google Patents

Rotary positive displacement pump Download PDF

Info

Publication number
EP0874157A3
EP0874157A3 EP98107092A EP98107092A EP0874157A3 EP 0874157 A3 EP0874157 A3 EP 0874157A3 EP 98107092 A EP98107092 A EP 98107092A EP 98107092 A EP98107092 A EP 98107092A EP 0874157 A3 EP0874157 A3 EP 0874157A3
Authority
EP
European Patent Office
Prior art keywords
base plate
annular surface
clamping plate
membrane
displacement pump
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
EP98107092A
Other languages
German (de)
French (fr)
Other versions
EP0874157A2 (en
EP0874157B1 (en
Inventor
Rolf Kammerer
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.)
Inotec GmbH Transport und Foerdersysteme
Inotec GmbH
Original Assignee
Inotec GmbH Transport und Foerdersysteme
Inotec GmbH
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 Inotec GmbH Transport und Foerdersysteme, Inotec GmbH filed Critical Inotec GmbH Transport und Foerdersysteme
Publication of EP0874157A2 publication Critical patent/EP0874157A2/en
Publication of EP0874157A3 publication Critical patent/EP0874157A3/en
Application granted granted Critical
Publication of EP0874157B1 publication Critical patent/EP0874157B1/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
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
    • F04B43/1269—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing the rotary axes of the rollers lying in a plane perpendicular to the rotary axis of the driving motor
    • 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
    • F04B43/021—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms the plate-like flexible member is pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the plane of the plate-like flexible member and each having its own driving 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
    • 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)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Display Devices Of Pinball Game Machines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

A rotary positive displacement pump comprises a stator (1) with a clamping plate (6) and a base plate (3) with an annular surface (5) on the clamping plate (6)-facing side. A membrane (11) covering the annular surface (5) is held between the clamping plate (6) and base plate (3) and forms a pumping channel (12) extending from an inlet (13) to an outlet (15) between the membrane (11) and base plate (3). A powered rotor (2) running around the concentric axis (4) of the annular surface (5) has at least one roller (21) running around the rear face of a circle of individual pressure transfer elements (14) which press the membrane (11) onto the annular surface to progressively interrupt the path from inlet (13) to outlet (15). The annular surface (5) is a layer of a softer material than the base plate (3). Preferably, the soft material layer (5) is a silicone polymer with a 20-50 Shore hardness extending over the area covered by the pressure transfer elements (14) and is either cast, vulcanised or bonded into a recess in the base plate (3) so that it projects above the recess edges. The base plate (3) is made of a dimensionally stable plastic and is held between the fixed clamping plate (6) and a removable clamping plate (24).
EP98107092A 1997-04-25 1998-04-18 Rotary positive displacement pump Expired - Lifetime EP0874157B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29707480U 1997-04-25
DE29707480U DE29707480U1 (en) 1997-04-25 1997-04-25 Rotary displacement pump

Publications (3)

Publication Number Publication Date
EP0874157A2 EP0874157A2 (en) 1998-10-28
EP0874157A3 true EP0874157A3 (en) 1999-04-28
EP0874157B1 EP0874157B1 (en) 2002-12-18

Family

ID=8039528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98107092A Expired - Lifetime EP0874157B1 (en) 1997-04-25 1998-04-18 Rotary positive displacement pump

Country Status (3)

Country Link
EP (1) EP0874157B1 (en)
AT (1) ATE230069T1 (en)
DE (2) DE29707480U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1082625C (en) * 1999-07-07 2002-04-10 张建辉 Piezoelectric ceramic pamp with three-way type inlet and outlet

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2722893A (en) * 1950-01-17 1955-11-08 Maillot Leon Alfred Collapsible chamber pump
DE3542454A1 (en) * 1985-11-30 1987-06-04 Walter Swoboda Diaphragm rotary pump
DE29511966U1 (en) * 1994-09-17 1995-09-28 Kammerer Rolf Rotary displacement pump
DE29609865U1 (en) * 1996-06-04 1996-10-24 Kammerer Rolf Rotary displacement pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2722893A (en) * 1950-01-17 1955-11-08 Maillot Leon Alfred Collapsible chamber pump
DE3542454A1 (en) * 1985-11-30 1987-06-04 Walter Swoboda Diaphragm rotary pump
DE29511966U1 (en) * 1994-09-17 1995-09-28 Kammerer Rolf Rotary displacement pump
DE29609865U1 (en) * 1996-06-04 1996-10-24 Kammerer Rolf Rotary displacement pump

Also Published As

Publication number Publication date
EP0874157A2 (en) 1998-10-28
DE59806668D1 (en) 2003-01-30
DE29707480U1 (en) 1997-07-17
EP0874157B1 (en) 2002-12-18
ATE230069T1 (en) 2003-01-15

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