EP0258797A3 - Variable discharge gear pump - Google Patents

Variable discharge gear pump Download PDF

Info

Publication number
EP0258797A3
EP0258797A3 EP87112353A EP87112353A EP0258797A3 EP 0258797 A3 EP0258797 A3 EP 0258797A3 EP 87112353 A EP87112353 A EP 87112353A EP 87112353 A EP87112353 A EP 87112353A EP 0258797 A3 EP0258797 A3 EP 0258797A3
Authority
EP
European Patent Office
Prior art keywords
gear pump
variable discharge
variable
discharge gear
pump housing
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Withdrawn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
EP87112353A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0258797A2 (en
Inventor
Yasuyoshi Itami Works Saegusa
Mamoru Itami Works Sugimoto
Kikuo Itami Works Hashimoto
Mutsuo Itami Works Terada
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of EP0258797A2 publication Critical patent/EP0258797A2/en
Publication of EP0258797A3 publication Critical patent/EP0258797A3/en
Withdrawn legal-status Critical Current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
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • 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
    • F04C14/14—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 using rotating valves
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP87112353A 1986-08-27 1987-08-25 Variable discharge gear pump Withdrawn EP0258797A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP20248786 1986-08-27
JP202487/86 1986-08-27
JP117560/87 1987-05-13
JP62117560A JPH01104991A (ja) 1986-08-27 1987-05-13 可変容量歯車ポンプ

Publications (2)

Publication Number Publication Date
EP0258797A2 EP0258797A2 (en) 1988-03-09
EP0258797A3 true EP0258797A3 (en) 1988-10-05

Family

ID=26455654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87112353A Withdrawn EP0258797A3 (en) 1986-08-27 1987-08-25 Variable discharge gear pump

Country Status (3)

Country Link
EP (1) EP0258797A3 (ko)
JP (1) JPH01104991A (ko)
KR (1) KR880003112A (ko)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231690A1 (de) * 1992-09-22 1994-03-24 Walter Schopf Innenzahnradpumpe mit variierbarer Förderleistung
CA2219062C (en) * 1996-12-04 2001-12-25 Siegfried A. Eisenmann Infinitely variable ring gear pump
ES2192242T3 (es) * 1996-12-04 2003-10-01 Siegfried A Dipl-Ing Eisenmann Bomba anular de engranajes continuamente variable.
DE10207348C2 (de) * 2001-02-23 2003-06-26 Joma Hydromechanic Gmbh Volumenstromvariable Rotorpumpe
DE10305585B3 (de) * 2002-12-19 2004-02-12 Joma-Hydromechanic Gmbh Rotorpumpe
US7153110B2 (en) 2002-12-19 2006-12-26 Joma-Hydromechanic Gmbh Variable volume flow internal gear pump
FR2865507B1 (fr) * 2004-01-27 2006-03-17 Renault Sas Pompe rotative trochoide a debit variable
EP2894294B1 (en) * 2014-01-10 2016-08-24 Volvo Car Corporation Control ring for a hydrostatical device
EP2894295B1 (en) 2014-01-10 2016-08-24 Volvo Car Corporation A control ring for a displacement pump and a displacement pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3026809A (en) * 1956-04-06 1962-03-27 Borg Warner Internal-external gear pump
GB896393A (en) * 1959-08-14 1962-05-16 Robert Wesley Brundage Variable volume internal chamber type hydraulic pump
GB1426223A (en) * 1973-05-15 1976-02-25 Concentric Pumps Ltd Rotary positive-idsplacement pumps

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3026809A (en) * 1956-04-06 1962-03-27 Borg Warner Internal-external gear pump
GB896393A (en) * 1959-08-14 1962-05-16 Robert Wesley Brundage Variable volume internal chamber type hydraulic pump
GB1426223A (en) * 1973-05-15 1976-02-25 Concentric Pumps Ltd Rotary positive-idsplacement pumps

Also Published As

Publication number Publication date
KR880003112A (ko) 1988-05-13
EP0258797A2 (en) 1988-03-09
JPH01104991A (ja) 1989-04-21

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18W Application withdrawn

Withdrawal date: 19891011

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SUGIMOTO, MAMORUITAMI WORKS

Inventor name: TERADA, MUTSUOITAMI WORKS

Inventor name: HASHIMOTO, KIKUOITAMI WORKS

Inventor name: SAEGUSA, YASUYOSHIITAMI WORKS