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GB1481911A - Hydraulic device with rotor seal - Google Patents

Hydraulic device with rotor seal

Info

Publication number
GB1481911A
GB1481911A GB9203/75A GB920375A GB1481911A GB 1481911 A GB1481911 A GB 1481911A GB 9203/75 A GB9203/75 A GB 9203/75A GB 920375 A GB920375 A GB 920375A GB 1481911 A GB1481911 A GB 1481911A
Authority
GB
United Kingdom
Prior art keywords
plate
rotor
seal
annular
fluid
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
GB9203/75A
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW 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 TRW Inc filed Critical TRW Inc
Publication of GB1481911A publication Critical patent/GB1481911A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/08—Axially-movable sealings for working fluids
    • 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)
  • Sealing Devices (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

1481911 Rotary positive-displacement fluid-machines TRW Inc 5 March 1975 [22 March 1974] 9203/75 Heading F1F In a gerotor-type hydraulic motor, or pump, leakage from the spaces between the stator 21 and rotor 22 to outlet, or inlet, bores 52, 53 in a power output, or input, shaft 15 is minimized by provision of an annular seal 100 in a side face 104 of the rotor. As shown in Fig. 2 the seal gives fluid in the said spaces access to the face 104 so that the rotor is pressed against a non-rotating plate 49. Another non-rotating plate 44, upon which the seal bears, may contain passages 56 extending between the said spaces and a flowcontrolling valve-plate 47, which is rotated in a planetary manner by a "wobble shaft" 33 interconnecting the rotor and shaft 15. Low-pressure working-fluid flows from, or to, the plate 47 by way of bores 50, 51, the high-pressure working- fluid being supplied, or discharged, through an annular passageway 26 beneath a cylindrical casing 12. To reduce wear the seal may be made of polyethylene having a molecular weight of 2.8 x 10<SP>6</SP>. Alternatively, an annular seal 236 is lodged in the inner one of two plates 212, 214 in place of the plate 49, an annular groove 224 in the inner plate being connected to the annular passageway 26a by a radial passage 228. The pressure transmitted to the outer side-face of the plate 214 from the passageway 26a forces the plates apart and the rotor against the plate 44a.
GB9203/75A 1974-03-22 1975-03-05 Hydraulic device with rotor seal Expired GB1481911A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US453710A US3894821A (en) 1974-03-22 1974-03-22 Hydraulic device with rotor seal

Publications (1)

Publication Number Publication Date
GB1481911A true GB1481911A (en) 1977-08-03

Family

ID=23801732

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9203/75A Expired GB1481911A (en) 1974-03-22 1975-03-05 Hydraulic device with rotor seal

Country Status (8)

Country Link
US (1) US3894821A (en)
JP (1) JPS5534320Y2 (en)
CA (1) CA1018822A (en)
DK (1) DK148450C (en)
ES (1) ES435891A1 (en)
FR (1) FR2264992B1 (en)
GB (1) GB1481911A (en)
IT (1) IT1034595B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2606172C2 (en) * 1976-02-17 1983-12-22 Danfoss A/S, 6430 Nordborg Rotary piston machine for liquids
US4145167A (en) * 1976-02-17 1979-03-20 Danfoss A/S Gerotor machine with pressure balancing recesses in inner gear
US4171938A (en) * 1977-11-21 1979-10-23 Eaton Corporation Fluid pressure operated pump or motor
US4741681A (en) * 1986-05-01 1988-05-03 Bernstrom Marvin L Gerotor motor with valving in gerotor star
US5080567A (en) * 1989-11-30 1992-01-14 White Hydraulics, Inc. Gerator hydraulic device having seal with steel and resilient members
US6345969B1 (en) * 2000-06-28 2002-02-12 White Hydraulics, Inc. Increased capacity valving plates for a hydraulic motor
US7322808B2 (en) * 2005-05-18 2008-01-29 White Drive Products, Inc. Balancing plate—shuttle ball
US8500423B2 (en) * 2010-04-13 2013-08-06 Eaton Corporation Frame rotated hydraulic motor with improved parking brake
US9784107B2 (en) 2012-10-22 2017-10-10 Parker-Hannifin Corporation Hydraulic motor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US889247A (en) * 1906-10-03 1908-06-02 Concentric Engine And Mfg Company Rotary engine.
US3616882A (en) * 1970-02-05 1971-11-02 Trw Inc Hydraulic motor-pump assembly with built-in brake
US3671154A (en) * 1970-10-08 1972-06-20 Gen Motors Corp Epitrochoidal compressor
US3711225A (en) * 1971-08-26 1973-01-16 Gen Motors Corp Epitrochoidal compressor

Also Published As

Publication number Publication date
JPS50122901U (en) 1975-10-07
DK119375A (en) 1975-09-23
AU7946175A (en) 1976-09-30
FR2264992A1 (en) 1975-10-17
IT1034595B (en) 1979-10-10
DK148450B (en) 1985-07-08
DK148450C (en) 1985-11-25
US3894821A (en) 1975-07-15
CA1018822A (en) 1977-10-11
JPS5534320Y2 (en) 1980-08-14
FR2264992B1 (en) 1980-03-28
ES435891A1 (en) 1977-03-16

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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