[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0467571A1 - Improvements in gerotor pumps - Google Patents

Improvements in gerotor pumps Download PDF

Info

Publication number
EP0467571A1
EP0467571A1 EP91306147A EP91306147A EP0467571A1 EP 0467571 A1 EP0467571 A1 EP 0467571A1 EP 91306147 A EP91306147 A EP 91306147A EP 91306147 A EP91306147 A EP 91306147A EP 0467571 A1 EP0467571 A1 EP 0467571A1
Authority
EP
European Patent Office
Prior art keywords
rotor
annulus
pump
male
lobes
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Withdrawn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
EP91306147A
Other languages
German (de)
English (en)
French (fr)
Inventor
Steve Hodge
Richard Robert Freeman
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
Publication of EP0467571A1 publication Critical patent/EP0467571A1/en
Withdrawn legal-status Critical Current

Links

Images

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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

Definitions

  • This invention relates to gerotor pumps which, as well known, comprise a male lobed rotor with n lobes and a female lobed rotor or annulus with n+1 lobes in which the male rotor is located and meshed. Both are contained in a pump body. This creates a series of chambers between the two rotors, and when the two rotors turn about their parallel axes the chambers vary in volume between a minimum and a maximum on the inlet side thus inducing fluid flow into the chambers through an inlet port and vice versa on the outlet side thus expelling fluid from the pump through an outlet port.
  • the annulus may be held axially in the body 46 by means of a washer 50 and a circlip 52 as illustrated in the lower half of Figure 2; alternatively a more massive retaining ring 54 may be pressed into the cylindrical cavity which receives the gerotor set as an interference fit therein, and used to retain the parts in the required axial positions.
  • a washer 50 and a circlip 52 as illustrated in the lower half of Figure 2
  • a more massive retaining ring 54 may be pressed into the cylindrical cavity which receives the gerotor set as an interference fit therein, and used to retain the parts in the required axial positions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP91306147A 1990-07-11 1991-07-05 Improvements in gerotor pumps Withdrawn EP0467571A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9015291 1990-07-11
GB909015291A GB9015291D0 (en) 1990-07-11 1990-07-11 Improvements in gerotor pumps

Publications (1)

Publication Number Publication Date
EP0467571A1 true EP0467571A1 (en) 1992-01-22

Family

ID=10678959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91306147A Withdrawn EP0467571A1 (en) 1990-07-11 1991-07-05 Improvements in gerotor pumps

Country Status (13)

Country Link
EP (1) EP0467571A1 (es)
JP (1) JPH06501292A (es)
KR (1) KR930701692A (es)
AR (1) AR244857A1 (es)
AU (1) AU640031B2 (es)
BR (1) BR9106626A (es)
CA (1) CA2046376A1 (es)
FI (1) FI925372A (es)
GB (2) GB9015291D0 (es)
IE (1) IE912415A1 (es)
PT (1) PT98231A (es)
WO (1) WO1992001161A1 (es)
ZA (1) ZA915264B (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5395217A (en) * 1991-06-07 1995-03-07 Schwabische Huttenwerke Gmbh Gear pump for oil for an internal-combustion engine, in particular for motor vehicles
US6152717A (en) * 1998-06-11 2000-11-28 Unisia Jecs Corporation Internal gear pumps
US8625943B2 (en) 2008-05-26 2014-01-07 Nippon Telegraph And Telephone Corporation Waveguide device and module
DE102016213611A1 (de) * 2016-07-25 2018-01-25 Zf Friedrichshafen Ag Rotorpumpe und Anordnung zum Antrieb einer Rotorpumpe

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19807630A1 (de) 1998-02-23 1999-08-26 Bayer Ag Wasserhaltige Mittel zur Bekämpfung parasitierender Insekten und Milben an Menschen
US7410349B2 (en) * 2004-10-26 2008-08-12 Magna Powertrain Usa, Inc. High efficiency gerotor pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR566247A (fr) * 1923-04-26 1924-02-11 Hill Engineering Co Inc Rotors conjugués
US1486836A (en) * 1923-04-28 1924-03-11 Hill Compressor & Pump Company Rotary-pump pressure control
GB2100354A (en) * 1981-06-16 1982-12-22 Fuji Heavy Ind Ltd An internal-combustion engine oil pump
DE3603773A1 (de) * 1986-01-03 1987-07-09 Schwaebische Huettenwerke Gmbh Zahnradmaschine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB233423A (en) * 1924-02-07 1925-05-07 Hill Compressor & Pump Co Inc Improvements in or relating to rotary pumps or the like
GB331054A (en) * 1929-01-03 1930-07-03 Thomas Winter Nichols Improvements in rotary pumps, compressors and the like
GB370474A (en) * 1930-12-11 1932-04-11 Thomas Winter Nichols Improvements in rotary pumps
GB404424A (en) * 1932-10-19 1934-01-18 Aladar Ledacskiss Improvements in or relating to rotary toothed-wheel engines
US3121341A (en) * 1960-05-25 1964-02-18 Francis A Hill Gears with rigid molded surfaces
IT1118556B (it) * 1979-04-12 1986-03-03 Whitehead Moto Fides Spa Stabi Procedimento per la realizzazione di una pompa meccanica rotativa e relativa pompa ottenuta
GB2219631B (en) * 1988-06-09 1992-08-05 Concentric Pumps Ltd Improvements relating to gerotor pumps
EP0361716B1 (en) * 1988-09-28 1993-09-01 Concentric Pumps Limited Improvements relating to gerotor pumps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR566247A (fr) * 1923-04-26 1924-02-11 Hill Engineering Co Inc Rotors conjugués
US1486836A (en) * 1923-04-28 1924-03-11 Hill Compressor & Pump Company Rotary-pump pressure control
GB2100354A (en) * 1981-06-16 1982-12-22 Fuji Heavy Ind Ltd An internal-combustion engine oil pump
DE3603773A1 (de) * 1986-01-03 1987-07-09 Schwaebische Huettenwerke Gmbh Zahnradmaschine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5395217A (en) * 1991-06-07 1995-03-07 Schwabische Huttenwerke Gmbh Gear pump for oil for an internal-combustion engine, in particular for motor vehicles
US6152717A (en) * 1998-06-11 2000-11-28 Unisia Jecs Corporation Internal gear pumps
US8625943B2 (en) 2008-05-26 2014-01-07 Nippon Telegraph And Telephone Corporation Waveguide device and module
DE102016213611A1 (de) * 2016-07-25 2018-01-25 Zf Friedrichshafen Ag Rotorpumpe und Anordnung zum Antrieb einer Rotorpumpe
DE102016213611B4 (de) 2016-07-25 2022-12-01 Zf Friedrichshafen Ag Rotorpumpe und Anordnung zum Antrieb einer Rotorpumpe

Also Published As

Publication number Publication date
AU8102591A (en) 1992-02-04
KR930701692A (ko) 1993-06-12
GB2245935A (en) 1992-01-15
FI925372A0 (fi) 1992-11-26
ZA915264B (en) 1992-04-29
JPH06501292A (ja) 1994-02-10
GB9114604D0 (en) 1991-08-21
GB9015291D0 (en) 1990-08-29
AU640031B2 (en) 1993-08-12
IE912415A1 (en) 1992-01-15
FI925372A (fi) 1992-11-26
BR9106626A (pt) 1993-06-01
WO1992001161A1 (en) 1992-01-23
AR244857A1 (es) 1993-11-30
PT98231A (pt) 1993-08-31
CA2046376A1 (en) 1992-01-12

Similar Documents

Publication Publication Date Title
EP0345978B1 (en) Improvements relating to gerotor pumps
US4505649A (en) Vane pumps
US6422845B1 (en) Rotary hydraulic vane pump with improved undervane porting
EP0399387A2 (en) Rotary vane machine
US5472321A (en) Fuel pump having an impeller with axially balanced forces acting thereon
US5501585A (en) Oil pump having a sealing mechanism for a pumping chamber
US2855857A (en) Regulator for positive displacement fluid machines
EP0467571A1 (en) Improvements in gerotor pumps
EP0481347A1 (en) Vane pump
US4415319A (en) Pump unit
US6478559B2 (en) Balanced vane pump
US20140147321A1 (en) Fluid device with pressurized roll pockets
US6886665B2 (en) Lubrication system valve
US4599051A (en) Vane type rotary pump
EP0361716B1 (en) Improvements relating to gerotor pumps
WO2010123556A2 (en) Vane pump with improved rotor and vane extension ring
US6419469B1 (en) Pump having a main outlet communicating with a secondary outlet by a gap
GB2110759A (en) Rotary positive-displacement fluid-machines
EP0841485A1 (en) Variable flow pump
EP0252612B1 (en) Oil pump
EP0881390B2 (en) Oil pump apparatus
US4432709A (en) Internally shafted planetary piston engine
GB2102888A (en) Rotary positive-displacement pumps
EP0664395A1 (en) Internal gear pump
CN108425841A (zh) 转子及具有该转子的液压泵

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19920706

17Q First examination report despatched

Effective date: 19930601

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19950725