CA989247A - Hydraulic pump or motor - Google Patents

Hydraulic pump or motor

Info

Publication number
CA989247A
CA989247A CA191,520A CA191520A CA989247A CA 989247 A CA989247 A CA 989247A CA 191520 A CA191520 A CA 191520A CA 989247 A CA989247 A CA 989247A
Authority
CA
Canada
Prior art keywords
motor
hydraulic pump
hydraulic
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.)
Expired
Application number
CA191,520A
Inventor
Bruce B. Myers
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.)
Reliance Electric Co
Original Assignee
Reliance Electric Co
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 Reliance Electric Co filed Critical Reliance Electric Co
Application granted granted Critical
Publication of CA989247A publication Critical patent/CA989247A/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
    • 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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/088—Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement

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)
CA191,520A 1973-04-20 1974-02-01 Hydraulic pump or motor Expired CA989247A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00352938A US3817665A (en) 1973-04-20 1973-04-20 Hydraulic pump or motor

Publications (1)

Publication Number Publication Date
CA989247A true CA989247A (en) 1976-05-18

Family

ID=23387090

Family Applications (1)

Application Number Title Priority Date Filing Date
CA191,520A Expired CA989247A (en) 1973-04-20 1974-02-01 Hydraulic pump or motor

Country Status (7)

Country Link
US (1) US3817665A (en)
JP (1) JPS502203A (en)
BE (1) BE811635A (en)
CA (1) CA989247A (en)
FR (1) FR2226572B1 (en)
GB (1) GB1425297A (en)
IT (1) IT1009909B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781552A (en) * 1985-11-27 1988-11-01 Jean Malfit High pressure hydraulic generator receiver for power transmission
US4824331A (en) * 1987-07-29 1989-04-25 Hydreco, Incorporated Variable discharge gear pump with energy recovery
US5167320A (en) * 1991-03-04 1992-12-01 Reliance Electric Industrial Company Variable speed drive for screw conveyor
EP0519276B1 (en) * 1991-06-19 1995-08-16 Eaton Corporation Supercharger carry-over venting means
US5190450A (en) * 1992-03-06 1993-03-02 Eastman Kodak Company Gear pump for high viscosity materials
JP3830313B2 (en) * 1999-09-06 2006-10-04 株式会社ジェイテクト Gear pump
US6808121B2 (en) * 2003-02-11 2004-10-26 Charles J. Rice Fluid pump
GB0406897D0 (en) * 2004-03-26 2004-04-28 Wabco Automotive Uk Ltd Vacuum pump oil pressure relief
US20070178003A1 (en) * 2005-11-22 2007-08-02 Parker-Hannifin Corporation Gear pump with ripple chamber for low noise and pressure ripples
DE202006014930U1 (en) 2006-09-28 2008-02-14 Trw Automotive Gmbh Hydraulic device
DE102007031901B4 (en) * 2007-07-09 2014-06-12 Schwäbische Hüttenwerke Automotive GmbH & Co. KG Reciprocating positive displacement pump with filling level increasing inlet
US10408212B2 (en) 2014-05-21 2019-09-10 Circor Pumps North America, Llc Gear pump having through-shaft bearing weepage control
CN110848132B (en) * 2019-12-04 2021-08-06 中国直升机设计研究所 Hand-operated hydraulic refueling device for aircraft
US11953032B2 (en) * 2021-02-09 2024-04-09 Caterpillar Inc. Hydraulic pump or motor with mounting configuration for increased torque
US12006924B2 (en) 2021-08-04 2024-06-11 Caterpillar Inc. Axial piston pump mounting flange configuration

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1129090A (en) * 1914-04-08 1915-02-23 American La France Fire Engine Company Inc Gear-pump.
US2281767A (en) * 1940-07-12 1942-05-05 Du Pont Pump
US2884864A (en) * 1955-04-14 1959-05-05 Borg Warner Pressure loaded pump, trapping grooves

Also Published As

Publication number Publication date
FR2226572A1 (en) 1974-11-15
BE811635A (en) 1974-06-17
US3817665A (en) 1974-06-18
FR2226572B1 (en) 1978-04-21
DE2409118A1 (en) 1974-11-14
DE2409118B2 (en) 1977-02-10
JPS502203A (en) 1975-01-10
GB1425297A (en) 1976-02-18
IT1009909B (en) 1976-12-20

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