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GB1510357A - Gear pump - Google Patents

Gear pump

Info

Publication number
GB1510357A
GB1510357A GB3411175A GB3411175A GB1510357A GB 1510357 A GB1510357 A GB 1510357A GB 3411175 A GB3411175 A GB 3411175A GB 3411175 A GB3411175 A GB 3411175A GB 1510357 A GB1510357 A GB 1510357A
Authority
GB
United Kingdom
Prior art keywords
gear pump
aug
valve
fluidmachines
flowrestricting
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
GB3411175A
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor 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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of GB1510357A publication Critical patent/GB1510357A/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
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Retarders (AREA)

Abstract

1510357 Rotary positive-displacement-fluidmachines CATERPILLAR TRACTOR CO 15 Aug 1975 [19 Aug 1974] 34111/75 Heading F1F In a gear pump, which may be driven by a variable-speed engine in a vehicle, a by-pass passage 40a is controlled by a spring-loaded valve-member 42 and inter-connects inlet and outlet passages 36, 37, the state of the valve-member being dependent upon the pressure differential created by a flowrestricting orifice 38. This arrangement is said to reduce cavitation at high shaft-speeds.
GB3411175A 1974-08-19 1975-08-15 Gear pump Expired GB1510357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49862674A 1974-08-19 1974-08-19

Publications (1)

Publication Number Publication Date
GB1510357A true GB1510357A (en) 1978-05-10

Family

ID=23981846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3411175A Expired GB1510357A (en) 1974-08-19 1975-08-15 Gear pump

Country Status (3)

Country Link
JP (1) JPS5122106A (en)
CA (1) CA1054444A (en)
GB (1) GB1510357A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740140A (en) * 1985-12-11 1988-04-26 Sundstrand Corporation Pump having integral switch and bypass valve
EP0451366A1 (en) * 1990-04-11 1991-10-16 Robert Bosch Gmbh Suction line connection for a liquid pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0571346U (en) * 1991-08-02 1993-09-28 文夫 森上 Formwork support bolt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740140A (en) * 1985-12-11 1988-04-26 Sundstrand Corporation Pump having integral switch and bypass valve
EP0451366A1 (en) * 1990-04-11 1991-10-16 Robert Bosch Gmbh Suction line connection for a liquid pump

Also Published As

Publication number Publication date
CA1054444A (en) 1979-05-15
JPS5122106A (en) 1976-02-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee