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GB1426223A - Rotary positive-idsplacement pumps - Google Patents

Rotary positive-idsplacement pumps

Info

Publication number
GB1426223A
GB1426223A GB2319573A GB2319573A GB1426223A GB 1426223 A GB1426223 A GB 1426223A GB 2319573 A GB2319573 A GB 2319573A GB 2319573 A GB2319573 A GB 2319573A GB 1426223 A GB1426223 A GB 1426223A
Authority
GB
United Kingdom
Prior art keywords
rotor
pumps
concentric
ring
rotary positive
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.)
Expired
Application number
GB2319573A
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.)
Concentric Pumps Ltd
Original Assignee
Concentric Pumps Ltd
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 Concentric Pumps Ltd filed Critical Concentric Pumps Ltd
Priority to GB2319573A priority Critical patent/GB1426223A/en
Publication of GB1426223A publication Critical patent/GB1426223A/en
Expired 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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/10—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by changing the positions of the inlet or outlet openings with respect to the working chamber

Landscapes

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

Abstract

1426223 Rotary positive-displacement pumps CONCENTRIC PUMPS Ltd 20 March 1974 [15 May 1973] 23195/73 Heading F1F A rotary positive-displacement pump of the kind in which an inner rotor is located within, and rotates in the same direction as, an outer annular eccentrically located rotor, the inner rotor having n lobes and the outer rotor n+l lobes, comprises a ring 20 in which is rotatably journalled the outer annular rotor, the inner periphery of ring 20 being concentric with the outer rotor and the outer periphery being concentric with the inner rotor, and a piston 14 sensitive to output pressure via line 10 and having a toothed rack 26 which engages peripheral teeth 24 on the ring 20, so that the orientation of the line through both axes of the rotors relative to the inlet and outlet ports 22 can be varied to cause a corresponding variation in pump output in dependence on output pressure.
GB2319573A 1973-05-15 1973-05-15 Rotary positive-idsplacement pumps Expired GB1426223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2319573A GB1426223A (en) 1973-05-15 1973-05-15 Rotary positive-idsplacement pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2319573A GB1426223A (en) 1973-05-15 1973-05-15 Rotary positive-idsplacement pumps

Publications (1)

Publication Number Publication Date
GB1426223A true GB1426223A (en) 1976-02-25

Family

ID=10191695

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2319573A Expired GB1426223A (en) 1973-05-15 1973-05-15 Rotary positive-idsplacement pumps

Country Status (1)

Country Link
GB (1) GB1426223A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076033A1 (en) * 1981-09-03 1983-04-06 Concentric Pumps Limited Variable output internal gear pump
US4413960A (en) * 1981-04-02 1983-11-08 Specht Victor J Positionable control device for a variable delivery pump
GB2120324A (en) * 1982-05-13 1983-11-30 Neptune Systems Limited Variable-displacement rotary pump or motor
US4492539A (en) * 1981-04-02 1985-01-08 Specht Victor J Variable displacement gerotor pump
EP0174734A2 (en) * 1984-09-08 1986-03-19 Concentric Pumps Limited Oil pumps
EP0252612A2 (en) * 1986-07-07 1988-01-13 Concentric Pumps Limited Oil pump
EP0258797A2 (en) * 1986-08-27 1988-03-09 Sumitomo Electric Industries Limited Variable discharge gear pump
GB2204096A (en) * 1987-03-20 1988-11-02 Concentric Pumps Ltd Variable output oil pump
EP1182351A1 (en) * 2000-08-03 2002-02-27 Schwäbische Hüttenwerke GmbH Ring gear pump with eccentricity adjustment
US7153110B2 (en) * 2002-12-19 2006-12-26 Joma-Hydromechanic Gmbh Variable volume flow internal gear pump
CN100390416C (en) * 2002-12-19 2008-05-28 乔马-流体机械有限公司 Variable volume flow rotor pump
EP2708748A1 (en) * 2012-09-12 2014-03-19 Schwäbische Hüttenwerke Automotive GmbH Switching pump with filling and/or emptying on both sides

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413960A (en) * 1981-04-02 1983-11-08 Specht Victor J Positionable control device for a variable delivery pump
US4492539A (en) * 1981-04-02 1985-01-08 Specht Victor J Variable displacement gerotor pump
EP0076033A1 (en) * 1981-09-03 1983-04-06 Concentric Pumps Limited Variable output internal gear pump
GB2120324A (en) * 1982-05-13 1983-11-30 Neptune Systems Limited Variable-displacement rotary pump or motor
JPH0681955B2 (en) 1984-09-08 1994-10-19 コンセントリツク パンプス リミテツド Gear pump
EP0174734A2 (en) * 1984-09-08 1986-03-19 Concentric Pumps Limited Oil pumps
JPS6181589A (en) * 1984-09-08 1986-04-25 コンセントリツク　パンプス　リミテツド Gear pump
EP0174734A3 (en) * 1984-09-08 1986-12-30 Concentric Pumps Limited Oil pumps
EP0252612A2 (en) * 1986-07-07 1988-01-13 Concentric Pumps Limited Oil pump
EP0252612A3 (en) * 1986-07-07 1988-07-20 Concentric Pumps Limited Oil pump
EP0258797A2 (en) * 1986-08-27 1988-03-09 Sumitomo Electric Industries Limited Variable discharge gear pump
EP0258797A3 (en) * 1986-08-27 1988-10-05 Sumitomo Electric Industries Limited Variable discharge gear pump
GB2204096A (en) * 1987-03-20 1988-11-02 Concentric Pumps Ltd Variable output oil pump
GB2204096B (en) * 1987-03-20 1991-02-06 Concentric Pumps Ltd Variable output oil pump
EP1182351A1 (en) * 2000-08-03 2002-02-27 Schwäbische Hüttenwerke GmbH Ring gear pump with eccentricity adjustment
US7153110B2 (en) * 2002-12-19 2006-12-26 Joma-Hydromechanic Gmbh Variable volume flow internal gear pump
CN100390416C (en) * 2002-12-19 2008-05-28 乔马-流体机械有限公司 Variable volume flow rotor pump
EP2708748A1 (en) * 2012-09-12 2014-03-19 Schwäbische Hüttenwerke Automotive GmbH Switching pump with filling and/or emptying on both sides

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19940319