EP0123579B1 - Dispositif pour la compensation hydrostatique de pompes et moteurs hydrauliques du type à engrenage - Google Patents

Dispositif pour la compensation hydrostatique de pompes et moteurs hydrauliques du type à engrenage Download PDF

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Publication number
EP0123579B1
EP0123579B1 EP84400565A EP84400565A EP0123579B1 EP 0123579 B1 EP0123579 B1 EP 0123579B1 EP 84400565 A EP84400565 A EP 84400565A EP 84400565 A EP84400565 A EP 84400565A EP 0123579 B1 EP0123579 B1 EP 0123579B1
Authority
EP
European Patent Office
Prior art keywords
grooves
bearings
compensation
chambers
seals
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
EP84400565A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0123579A1 (fr
Inventor
Roger Laumont
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.)
Hydroperfect International Inc
Original Assignee
Hydroperfect International Inc
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 Hydroperfect International Inc filed Critical Hydroperfect International Inc
Publication of EP0123579A1 publication Critical patent/EP0123579A1/fr
Application granted granted Critical
Publication of EP0123579B1 publication Critical patent/EP0123579B1/fr
Expired legal-status Critical Current

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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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps

Definitions

  • the shaft 8 constitutes the driving shaft and protrudes from the cover 3 while the shaft 9 is completely included inside the pump.
  • a seal 10a is provided on the shaft 8 to prevent any leakage of working liquid.
  • FIG. 4 shows, by way of example and to illustrate the arrangement of the various joints described, two grooves A and B each containing a joint A, respectively B 1 , these grooves being provided one in a cover C, the other in a pad D.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP84400565A 1983-03-22 1984-03-20 Dispositif pour la compensation hydrostatique de pompes et moteurs hydrauliques du type à engrenage Expired EP0123579B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8304650A FR2543229B1 (fr) 1983-03-22 1983-03-22 Dispositif pour la compensation hydrostatique de pompes et moteurs hydrauliques du type a engrenage
FR8304650 1983-03-22

Publications (2)

Publication Number Publication Date
EP0123579A1 EP0123579A1 (fr) 1984-10-31
EP0123579B1 true EP0123579B1 (fr) 1986-09-10

Family

ID=9287092

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84400565A Expired EP0123579B1 (fr) 1983-03-22 1984-03-20 Dispositif pour la compensation hydrostatique de pompes et moteurs hydrauliques du type à engrenage

Country Status (21)

Country Link
US (1) US4527966A (cs)
EP (1) EP0123579B1 (cs)
JP (1) JPS6011691A (cs)
KR (1) KR860000960B1 (cs)
AR (1) AR230757A1 (cs)
AT (1) ATE22161T1 (cs)
AU (1) AU2593684A (cs)
BR (1) BR8401311A (cs)
CA (1) CA1221876A (cs)
CS (1) CS252815B2 (cs)
DD (1) DD216768A5 (cs)
DE (2) DE123579T1 (cs)
DK (1) DK160084A (cs)
ES (1) ES530833A0 (cs)
FR (1) FR2543229B1 (cs)
HU (1) HUT39840A (cs)
IL (1) IL71306A0 (cs)
IN (1) IN160317B (cs)
NO (1) NO841123L (cs)
NZ (1) NZ207553A (cs)
RO (1) RO92213B (cs)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8415879D0 (en) * 1984-06-21 1984-07-25 Dowty Hydraulic Units Ltd Rotary positive displacement fluid-pressure machines
FR2574517B1 (fr) * 1984-12-10 1988-09-02 Hydroperfect Int Joint d'etancheite et son application a la realisation de la compensation hydrostatique de pompes et moteurs hydrauliques
IT1200232B (it) * 1986-10-20 1989-01-05 Sund Strand Hydratec Spa Macchina ad ingranaggi fungente da pompa o motore
EP0287698B1 (de) * 1987-04-24 1990-11-14 JOHN S. BARNES GmbH Zahnradpumpe oder -motor für Fluide
IT1220330B (it) * 1988-04-08 1990-06-15 Sauer Sundstrand Spa Macchina ad ingranaggi fungente da pompa o motore
US5022837A (en) * 1989-11-13 1991-06-11 Sta-Rite Industries, Inc. Seal arrangement for a gear machine
EP0563661A1 (de) * 1992-03-19 1993-10-06 J.M. Voith GmbH Sichellose Innenzahnradpumpe mit radial beweglichen Dichtelementen zur Radialkompensation
JPH10274171A (ja) * 1997-01-31 1998-10-13 United Dominion Ind Inc 定位置洗浄ギヤポンプ
JP3932595B2 (ja) * 1997-03-12 2007-06-20 株式会社日立製作所 ギヤポンプ
FR2772839B1 (fr) 1997-12-19 2000-02-11 Hydroperfect Int Pompe a carburant, notamment essence, en particulier pour l'injection directe du carburant dans un moteur a combustion interne, groupe electro-pompe comportant une telle pompe et vehicule automobile equipe d'un tel groupe electro-pompe
US6902382B2 (en) * 2003-09-11 2005-06-07 Matthew Peter Christensen Gear motor start up control

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578887A (en) * 1968-11-15 1971-05-18 Marco Turolla Geared pumps

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3096719A (en) * 1960-04-29 1963-07-09 Webster Electric Co Inc Rotary pump or motor
US3291053A (en) * 1965-01-14 1966-12-13 Clark Equipment Co Thrust bearing for pump or motor
US3482524A (en) * 1968-06-12 1969-12-09 Gen Signal Corp Pump or motor
FR2215103A5 (cs) * 1973-01-23 1974-08-19 Hydroperfect Int
US3891360A (en) * 1973-03-06 1975-06-24 Bosch Gmbh Robert Gear machine with axially movable end wall seal
GB2051241B (en) * 1979-06-16 1983-03-16 Dowty Hydraulic Units Ltd Rotary positive-displacement fluid-pressure machines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578887A (en) * 1968-11-15 1971-05-18 Marco Turolla Geared pumps

Also Published As

Publication number Publication date
AU2593684A (en) 1984-09-27
DE123579T1 (de) 1985-04-25
IL71306A0 (en) 1984-06-29
ES8500394A1 (es) 1984-11-01
CS207284A2 (en) 1987-03-12
DE3460661D1 (en) 1986-10-16
DK160084A (da) 1984-09-23
NO841123L (no) 1984-09-24
KR860000960B1 (ko) 1986-07-23
US4527966A (en) 1985-07-09
KR840008035A (ko) 1984-12-12
FR2543229B1 (fr) 1985-08-16
CS252815B2 (en) 1987-10-15
RO92213A (ro) 1987-07-30
ES530833A0 (es) 1984-11-01
FR2543229A1 (fr) 1984-09-28
IN160317B (cs) 1987-07-04
EP0123579A1 (fr) 1984-10-31
DK160084D0 (da) 1984-03-20
BR8401311A (pt) 1984-10-30
JPS6011691A (ja) 1985-01-21
AR230757A1 (es) 1984-06-29
ATE22161T1 (de) 1986-09-15
NZ207553A (en) 1986-07-11
RO92213B (ro) 1987-07-31
DD216768A5 (de) 1984-12-19
CA1221876A (en) 1987-05-19
HUT39840A (en) 1986-10-29

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