GB1163490A - Improvements in or relating to Rotary Positive-Displacement Hydraulic Pumps and Motors - Google Patents

Improvements in or relating to Rotary Positive-Displacement Hydraulic Pumps and Motors

Info

Publication number
GB1163490A
GB1163490A GB57821/67A GB5782167A GB1163490A GB 1163490 A GB1163490 A GB 1163490A GB 57821/67 A GB57821/67 A GB 57821/67A GB 5782167 A GB5782167 A GB 5782167A GB 1163490 A GB1163490 A GB 1163490A
Authority
GB
United Kingdom
Prior art keywords
rollers
recesses
axis
teeth
displacement hydraulic
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
GB57821/67A
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 GB1163490A publication Critical patent/GB1163490A/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
    • F04C2/086—Carter
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/01—Materials digest

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

1,163,490. Bearings. TRW Inc. 20 Dec., 1967 [27 Sept., 1967], No. 57821/67. Heading F2A. [Also in Division F1] A rotary positive-displacement hydraulic pump, or motor, comprises an externallytoothed member 12 meshing with an internallytoothed member 20 and defining therewith a plurality of working chambers 21a to 21g, the teeth of the member 20 being constituted by cylindrical rollers or vanes 17 lodged in recesses 18 of slightly greater diameter and lined with a material 27 having a coefficient of friction lower than that of the remainder of the member 20 so as to minimize friction when the rollers are revolved by the teeth of the member 12 during operation of the pump or motor, which involves either planetary rotation of one member relative to the other or rotation of one member about its own axis while the other member gyrates along a circular path about said axis without revolving about its own axis. The aforementioned material may be copper plating or a fluorocarbon resin such as P.T.F.E., fluorinated ethylene propylene, chlorotrifluoroethylene or polyvinylidene fluoride. The member 20 may be made of cast iron or sintered iron, which may be impregnated with plastics material, Fig. 3 (not shown), to render it impervious to the hydraulic working fluid e.g. oil. It is indicated that, owing to the recesses 18 being of slightly greater diameter than the rollers, a hydrodynamic film of the working fluid is formed between the rollers and the walls of the recesses, thereby effecting lubrication of the rollers.
GB57821/67A 1967-09-27 1967-12-20 Improvements in or relating to Rotary Positive-Displacement Hydraulic Pumps and Motors Expired GB1163490A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67091567A 1967-09-27 1967-09-27

Publications (1)

Publication Number Publication Date
GB1163490A true GB1163490A (en) 1969-09-04

Family

ID=24692408

Family Applications (1)

Application Number Title Priority Date Filing Date
GB57821/67A Expired GB1163490A (en) 1967-09-27 1967-12-20 Improvements in or relating to Rotary Positive-Displacement Hydraulic Pumps and Motors

Country Status (5)

Country Link
US (1) US3460481A (en)
DE (1) DE1653922C3 (en)
FR (1) FR1554495A (en)
GB (1) GB1163490A (en)
SE (1) SE328776B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3591320A (en) * 1969-04-08 1971-07-06 George V Woodling Pressurized roller means in a fluid pressure device
DE1931143A1 (en) * 1969-06-19 1971-02-04 Danfoss As Hydraulic rotary piston machine
US3622254A (en) * 1969-06-20 1971-11-23 Precision Scient Co Pump
US3687578A (en) * 1970-09-04 1972-08-29 Trw Inc Hydraulic pump motor
US3778201A (en) * 1972-03-23 1973-12-11 Davey Compressor Co Compressor blade
DE2259117C2 (en) * 1972-12-02 1975-01-09 Danfoss A/S, Nordborg (Daenemark) Parallel and internal-axis rotary piston machine
US3860367A (en) * 1973-08-24 1975-01-14 Ford Motor Co Controlled porous coating for rotary engine side housing
US4008015A (en) * 1975-11-03 1977-02-15 Eaton Corporation Rotor-stator gear set
DE2637980A1 (en) * 1976-08-24 1978-03-02 Bosch Gmbh Robert FUEL SUPPLY UNIT
CN1157274C (en) * 1998-10-29 2004-07-14 住友重机械工业株式会社 Method of manufacturing pin holding ring for internal gear, internally meshed planetary gear structure, and hydraulic motor and pump
DE19961401C2 (en) * 1999-12-20 2002-06-27 Sauer Danfoss Nordborg As Nord Hydraulic machine
US6802244B1 (en) 2003-04-25 2004-10-12 Sauer-Danfoss, Inc. Hydrostatic cylinder block and method of making the same
JP2007292005A (en) * 2006-04-27 2007-11-08 Hitachi Ltd Pump device and power steering device
DE102006047312A1 (en) * 2006-10-06 2008-04-10 Sauer-Danfoss Aps Hydraulic machine
DE102007015626A1 (en) 2007-03-27 2008-10-02 Sauer-Danfoss Aps Hydraulic machine
US8047825B2 (en) * 2007-04-09 2011-11-01 United Technologies Corporation Fluoropolymer-containing films for use with positive-displacement fluid pumps

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB591143A (en) * 1944-07-20 1947-08-08 Robert Edison Edouard Jessop Improvements in or relating to rotary roller-vane pumps
US2345975A (en) * 1938-12-24 1944-04-04 Vickers Inc Power transmission pump or motor
US2586964A (en) * 1946-09-24 1952-02-26 Jr Frederick Kraissl Rotary pump
US2619040A (en) * 1949-03-15 1952-11-25 Maisch Oliver Liquid measuring and dispensing pump
US2815718A (en) * 1952-07-24 1957-12-10 Gen Electric Ball piston type fluid transmission
DE1035415B (en) * 1953-01-23 1958-07-31 Glacier Co Ltd bearings
GB795204A (en) * 1955-07-20 1958-05-21 Emi Ltd Improvements in or relating to rotary oil vacuum pumps
US3004333A (en) * 1957-06-18 1961-10-17 Clevite Corp Bearing and method of making same
US3289602A (en) * 1965-09-03 1966-12-06 Trw Inc Fluid pressure device
US3389618A (en) * 1966-05-11 1968-06-25 Char Lynn Co Torque transmitting device

Also Published As

Publication number Publication date
DE1653922C3 (en) 1981-07-02
DE1653922A1 (en) 1972-02-10
FR1554495A (en) 1969-01-17
US3460481A (en) 1969-08-12
DE1653922B2 (en) 1980-11-20
SE328776B (en) 1970-09-21

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414B Case decided by the comptroller ** grants allowed (sect. 14/1949)
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years