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GB1510341A - Rotary fluid pressure device and pressure relief system therefor - Google Patents

Rotary fluid pressure device and pressure relief system therefor

Info

Publication number
GB1510341A
GB1510341A GB11049/75A GB1104975A GB1510341A GB 1510341 A GB1510341 A GB 1510341A GB 11049/75 A GB11049/75 A GB 11049/75A GB 1104975 A GB1104975 A GB 1104975A GB 1510341 A GB1510341 A GB 1510341A
Authority
GB
United Kingdom
Prior art keywords
pressure
recesses
plate
chambers
groove
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
GB11049/75A
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.)
Eaton Corp
Original Assignee
Eaton Corp
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 Eaton Corp filed Critical Eaton Corp
Publication of GB1510341A publication Critical patent/GB1510341A/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
    • F04C2/10—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
    • F04C2/103—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 one member having simultaneously a rotational movement about its own axis and an orbital movement
    • F04C2/105—Details concerning timing or distribution 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
    • F04C2/103—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 one member having simultaneously a rotational movement about its own axis and an orbital movement
    • F04C2/104—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 one member having simultaneously a rotational movement about its own axis and an orbital movement having an articulated driving shaft

Landscapes

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

Abstract

1510341 Rotary positive-displacement fluid-machines EATON CORP 17 April 1975 [17 April 1974] 11049/75 Heading F1F In an hydraulic motor, or pump, of the gerotor type, Figs. 1 to 3, recesses 143, 145, 147, 149, 151, 153, 155 are formed in a surface 125 of a fixed plate 15 abutting a stationary outer gerotormember 23 and are connected to an outlet, or inlet, port 77 for low-pressure working-fluid so as to reduce the areas of said surface and the adjacent surface 121 of the member 23 subjected to the pressure of working fluid leaking from the chambers between the member 23 and the co-operating rotary member 27 and tending to increase the separation of said surfaces. An annular land 173 on the plate 15 lies between the recesses and the chambers. A groove 137 for a sealing ring interconnects the recesses. A similar pressure-reducing system is provided in a fixed valve-plate 19, the two sets of recesses being interconnected by a passage 171. The machine may be modified for use as a metering device in an hydraulic powerassisted steering system, Figs. 8 to 10, sealing-ring grooves 277, 279, 281 and pressure-reducing grooves 283, 285, 287 being formed in fixed members 205, 209 abutting the stationary outer gerotor-member 227. The grooves 283, 285, 287 are connected to the exhaust port by way of clearance gaps 291 circumjacent bolts 211, a groove 301 in the member 205, and a bore 303 in a valve member 215. A further pressure-reducing groove 299 may be formed in the plate 205 on the radially inner side of the chambers between the gerotor members.
GB11049/75A 1974-04-17 1975-04-17 Rotary fluid pressure device and pressure relief system therefor Expired GB1510341A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US461688A US3905728A (en) 1974-04-17 1974-04-17 Rotary fluid pressure device and pressure relief system therefor

Publications (1)

Publication Number Publication Date
GB1510341A true GB1510341A (en) 1978-05-10

Family

ID=23833556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11049/75A Expired GB1510341A (en) 1974-04-17 1975-04-17 Rotary fluid pressure device and pressure relief system therefor

Country Status (11)

Country Link
US (1) US3905728A (en)
JP (1) JPS5534319B2 (en)
CA (1) CA1032828A (en)
DD (1) DD116886A5 (en)
DE (1) DE2514179A1 (en)
DK (1) DK147949C (en)
FR (1) FR2279945A1 (en)
GB (1) GB1510341A (en)
IT (1) IT1037318B (en)
PL (1) PL115077B2 (en)
SE (1) SE404717B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199305A (en) * 1977-10-13 1980-04-22 Lear Siegler, Inc. Hydraulic Gerotor motor with balancing grooves and seal pressure relief
DE2844844A1 (en) * 1978-10-14 1980-04-17 Rexroth Gmbh G L CIRCULAR PISTON MACHINE
DE2934618C2 (en) * 1979-08-28 1983-06-30 Danfoss A/S, 6430 Nordborg Hydraulic torque amplifier for steering devices of motor vehicles
DE3150569A1 (en) * 1981-12-21 1983-06-30 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Vane cell pump
US4531082A (en) * 1983-08-16 1985-07-23 Kabushiki Kaisha Komatsu Seisakusho Control system for positioning implements
US4533302A (en) * 1984-02-17 1985-08-06 Eaton Corporation Gerotor motor and improved lubrication flow circuit therefor
US4992034A (en) * 1989-04-24 1991-02-12 Eaton Corporation Low-speed, high-torque gerotor motor and improved valving therefor
US6086344A (en) * 1998-02-02 2000-07-11 White Hydraulics, Inc. Hydraulic motor lubrication path
US7739870B2 (en) 2006-08-04 2010-06-22 Briggs And Stratton Corporation Hydrostatic transmission
US7614227B2 (en) 2006-08-04 2009-11-10 Briggs And Stratton Corporation Rotary control valve for a hydrostatic transmission
US20100038191A1 (en) * 2008-08-15 2010-02-18 Culbertson Michael O Modular actuator for wind turbine brake
CN105276183A (en) * 2014-07-16 2016-01-27 镇江大力液压马达股份有限公司 Cycloid hydraulic motor with O-shaped sealing rings for positioning and sealing
EP3056727B1 (en) * 2015-02-11 2019-05-15 Danfoss A/S Hydraulic machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1894353A (en) * 1929-09-14 1933-01-17 Tuthill Pump Co Rotary engine
US3034448A (en) * 1959-05-19 1962-05-15 Robert W Brundage Hydraulic pump
US3289542A (en) * 1963-10-29 1966-12-06 Lawrence Machine & Mfg Company Hydraulic motor or pump
DE1653823B1 (en) * 1967-12-23 1972-05-04 Danfoss As Rotary piston machine for liquid media
US3601513A (en) * 1969-07-22 1971-08-24 Trw Inc Hydraulic device
DE1947798A1 (en) * 1969-09-20 1971-04-15 Danfoss As Power or work machine
US3572983A (en) * 1969-11-07 1971-03-30 Germane Corp Fluid-operated motor
US3694114A (en) * 1970-01-15 1972-09-26 Karl Eickmann Fluid flow machine with axially biassed rotor assembly
US3695791A (en) * 1970-09-18 1972-10-03 Emerson Electric Co Variable sealed hydraulic pump or motor

Also Published As

Publication number Publication date
JPS5534319B2 (en) 1980-09-05
IT1037318B (en) 1979-11-10
FR2279945B1 (en) 1980-05-09
FR2279945A1 (en) 1976-02-20
JPS50144106A (en) 1975-11-19
PL115077B2 (en) 1981-03-31
SE404717B (en) 1978-10-23
CA1032828A (en) 1978-06-13
DE2514179C2 (en) 1987-07-23
US3905728A (en) 1975-09-16
DD116886A5 (en) 1975-12-12
DK147949C (en) 1985-08-19
DK147949B (en) 1985-01-14
DE2514179A1 (en) 1975-11-06
DK162175A (en) 1975-10-18
SE7503112L (en) 1975-10-20

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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: 19930417