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GB1457807A - Gear pump or motor - Google Patents

Gear pump or motor

Info

Publication number
GB1457807A
GB1457807A GB970674*[A GB970674A GB1457807A GB 1457807 A GB1457807 A GB 1457807A GB 970674 A GB970674 A GB 970674A GB 1457807 A GB1457807 A GB 1457807A
Authority
GB
United Kingdom
Prior art keywords
motor
gear pump
march
low pressure
seal
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
GB970674*[A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1457807A publication Critical patent/GB1457807A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

1457807 Rotary positive-displacement fluidmachines ROBERT BOSCH GmbH 4 March 1974 [6 March 1973] 9706/74 Heading F1F A pair of pressure loaded bushes 18, 20 and 19, 21 at each side of an externally meshing gear pump or motor are biased axially by a high and a low pressure field which fields are separated by a respective seal 29 or 30. The seals 29, 30 are each in the form of an arabic numeral 3 open towards the low pressure side of the machine and are located in a respective recess. End lugs of each seal define a chamber 31 or 32 with the walls of the respective recess in which high pressure urges the lugs against the inner peripheral wall of the machines' housing.
GB970674*[A 1973-03-06 1974-05-04 Gear pump or motor Expired GB1457807A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7308439 1973-03-06

Publications (1)

Publication Number Publication Date
GB1457807A true GB1457807A (en) 1976-12-08

Family

ID=6637241

Family Applications (1)

Application Number Title Priority Date Filing Date
GB970674*[A Expired GB1457807A (en) 1973-03-06 1974-05-04 Gear pump or motor

Country Status (5)

Country Link
US (1) US3891360A (en)
JP (1) JPS5620552Y2 (en)
FR (1) FR2221019A7 (en)
GB (1) GB1457807A (en)
IT (1) IT1011030B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199374A (en) * 1986-10-20 1988-07-06 Sauer Sundstrand Spa Pressure balancing seal in gear pump or motor
CN103291762A (en) * 2013-05-13 2013-09-11 合肥力威汽车油泵有限公司 Anti-abrasion floating aluminum alloy bearing pedestal and preparation method thereof

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7500496U (en) * 1975-01-10 1976-07-22 Robert Bosch Gmbh, 7000 Stuttgart ELECTRIC WHEEL MACHINE (PUMP OR MOTOR)
JPS5653096Y2 (en) * 1975-03-20 1981-12-10
JPS5543220A (en) * 1978-09-19 1980-03-27 Kayaba Ind Co Ltd Terminal structure of seal to demarcate gear pump or high pressure area and low pressure area in motor
DE2847711A1 (en) * 1978-11-03 1980-05-14 Bosch Gmbh Robert GEAR MACHINE (PUMP OR HYDROMOTOR)
GB2051241B (en) * 1979-06-16 1983-03-16 Dowty Hydraulic Units Ltd Rotary positive-displacement fluid-pressure machines
US4298319A (en) * 1979-10-29 1981-11-03 General Signal Corporation Hydraulic gear pump or motor with floating wear plates, balance assembly, and unitary load bearing and alignment means
DE3113939A1 (en) * 1981-04-07 1982-11-11 Robert Bosch Gmbh, 7000 Stuttgart GEAR MOTOR
FR2543229B1 (en) * 1983-03-22 1985-08-16 Hydroperfect Int DEVICE FOR HYDROSTATIC COMPENSATION OF GEAR TYPE HYDRAULIC PUMPS AND MOTORS
US4768935A (en) * 1985-10-08 1988-09-06 Atos Oleodinamica S.P.A. Volumetric blade pump for fluid-hydraulic actuation
JPH0741905Y2 (en) * 1990-02-16 1995-09-27 株式会社小松製作所 Gear pump sealing device
CN103122853B (en) * 2013-01-11 2016-05-25 徐州科源液压股份有限公司 With the high-pressure gear pump floating side plate of pressing plate

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE625348A (en) * 1961-12-11
US3348492A (en) * 1966-12-05 1967-10-24 Borg Warner Reversible wear plate pump
US3371615A (en) * 1967-01-16 1968-03-05 Borg Warner Pressure loaded pump
US3473476A (en) * 1967-11-13 1969-10-21 Lear Siegler Inc Gear pump seal
FR1598392A (en) * 1968-04-13 1970-07-06

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199374A (en) * 1986-10-20 1988-07-06 Sauer Sundstrand Spa Pressure balancing seal in gear pump or motor
GB2199374B (en) * 1986-10-20 1990-08-22 Sauer Sundstrand Spa Gear machine for use as a pump or motor
CN103291762A (en) * 2013-05-13 2013-09-11 合肥力威汽车油泵有限公司 Anti-abrasion floating aluminum alloy bearing pedestal and preparation method thereof
CN103291762B (en) * 2013-05-13 2016-08-10 合肥力威汽车油泵有限公司 A kind of wear-resisting floating aluminum alloy bearing seat and preparation method

Also Published As

Publication number Publication date
FR2221019A7 (en) 1974-10-04
IT1011030B (en) 1977-01-20
JPS49146507U (en) 1974-12-18
JPS5620552Y2 (en) 1981-05-15
US3891360A (en) 1975-06-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930304