GB1260203A - A hydraulic pump having a swash plate with variable inclination - Google Patents

A hydraulic pump having a swash plate with variable inclination

Info

Publication number
GB1260203A
GB1260203A GB6866/69A GB686669A GB1260203A GB 1260203 A GB1260203 A GB 1260203A GB 6866/69 A GB6866/69 A GB 6866/69A GB 686669 A GB686669 A GB 686669A GB 1260203 A GB1260203 A GB 1260203A
Authority
GB
United Kingdom
Prior art keywords
pressure
piston
valve member
delivery pressure
spring
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
GB6866/69A
Inventor
Gerard Leduc
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1260203A publication Critical patent/GB1260203A/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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/26—Control
    • F04B1/28—Control of machines or pumps with stationary cylinders
    • F04B1/29—Control of machines or pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B1/295—Control of machines or pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H23/00—Wobble-plate gearings; Oblique-crank gearings
    • F16H23/02—Wobble-plate gearings; Oblique-crank gearings with adjustment of throw by changing the position of the wobble-member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)

Abstract

1,260,203. Reciprocating pumps. G. LEDUC. Feb.7, 1969 [Feb. 7, 1968], No.6866/69. Heading F1A. [Also in Division G3] In a hydraulic pump the inclination of the swashplate 9 pivoted to a support 8 and fast with the driving-shaft 7 is made variable by the action of a piston 12 which is supplied by outlet pressure fluid via a regulating valve 27 which has one face subjected to the delivery pressure and the other face to the combined action of a spring 24 bearing on the swash-plate 9 and an intermediate hydraulic pressure which is lower than the delivery pressure. The pressure reaches the interior of the piston 12 via a calibrated orifice 18 thus providing a back pressure on the valve member 27 in addition to the spring 24. A safety valve 36 is provided to limit the maximum value of the delivery pressure and comprises a valve member 37 which is subjected on one face to the outlet pressure and on the other to a spring 38. An annular chamber (40), Fig. 2 (not shown) surrounding the valve member 37 communicates via a non-return valve (42) with one of the bores 4 of the pump which thus provides a pulsatory delivery pressure to the annular chamber (40). When the delivery pressure exceeds a predetermined value the valve member 37 is lifted, subjecting the piston 12 to the pulsatory pressure delivered from the pump bore 4 so that the piston 12 advances in steps until the angle of the swash-plate is zero.
GB6866/69A 1968-02-07 1969-02-07 A hydraulic pump having a swash plate with variable inclination Expired GB1260203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR138941 1968-02-07

Publications (1)

Publication Number Publication Date
GB1260203A true GB1260203A (en) 1972-01-12

Family

ID=8645647

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6866/69A Expired GB1260203A (en) 1968-02-07 1969-02-07 A hydraulic pump having a swash plate with variable inclination

Country Status (5)

Country Link
US (1) US3575534A (en)
JP (1) JPS4940244B1 (en)
DE (1) DE1906226A1 (en)
FR (1) FR1563864A (en)
GB (1) GB1260203A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106382215A (en) * 2016-12-13 2017-02-08 荆门市召铭液压科技有限公司 Single-control piston swash plate axial plunger pump

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4963003A (en) * 1972-06-16 1974-06-19
JPS512037U (en) * 1974-06-19 1976-01-08
US4145887A (en) * 1974-11-06 1979-03-27 U.S. Philips Corporation Swashplate compensation mechanism
US4037993A (en) * 1976-04-23 1977-07-26 Borg-Warner Corporation Control system for variable displacement compressor
US4149830A (en) * 1977-05-16 1979-04-17 The Bendix Corporation Variable displacement piston pump
GB1568946A (en) * 1977-05-09 1980-06-11 Bendix Corp Variable displacement piston pump
US4137013A (en) * 1977-09-22 1979-01-30 The Bendix Corporation Variable displacement piston pump
US4182365A (en) * 1977-09-26 1980-01-08 The Bendix Corporation Control valve for use with variable displacement piston pump
US4175915A (en) * 1978-04-27 1979-11-27 General Motors Corporation Drive shaft lug for variable displacement compressor
US4475871A (en) * 1982-08-02 1984-10-09 Borg-Warner Corporation Variable displacement compressor
JPS60175782A (en) * 1984-02-21 1985-09-09 Sanden Corp Variable capacity rolling compressor
JPS6341677A (en) * 1986-08-08 1988-02-22 Sanden Corp Variable capacity compressor
BR8704487A (en) * 1986-09-02 1988-04-19 Nippon Denso Co VARIABLE DISPLACEMENT OSCILLATING PLATE TYPE COMPRESSOR
JPH0223829Y2 (en) * 1987-05-19 1990-06-28
DE4210038A1 (en) * 1992-03-27 1993-09-30 Teves Gmbh Alfred Speed dependent, hydraulic camshaft adjustment for IC engine - has pump with supply volume controlled by motor between camshaft and drive via hydraulic operating chamber
JPH05312144A (en) * 1992-05-08 1993-11-22 Sanden Corp Variable displacement swash plate type compressor
US6443705B1 (en) 2000-11-28 2002-09-03 Ingersoll-Rand Company Direct drive variable displacement pump
US6983680B2 (en) * 2002-08-28 2006-01-10 Torvec, Inc. Long-piston hydraulic machines
EP1435457A1 (en) * 2003-01-03 2004-07-07 Lavorwash S.p.A. Swash plate pump with automatically variable flow rate
US7475617B2 (en) * 2005-06-15 2009-01-13 Torvec, Inc. Orbital transmission with geared overdrive
DE112014001751T5 (en) 2013-03-29 2015-12-17 Kabushiki Kaisha Toyota Jidoshokki Variable displacement swash plate type compressor
JP6115258B2 (en) * 2013-03-29 2017-04-19 株式会社豊田自動織機 Double-head piston type swash plate compressor
US9657561B1 (en) 2016-01-06 2017-05-23 Isodrill, Inc. Downhole power conversion and management using a dynamically variable displacement pump

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2283321A (en) * 1937-04-15 1942-05-19 Waterbury Tool Co Power transmission
US3010403A (en) * 1957-01-10 1961-11-28 Gen Motors Corp Variable pressure fluid pump
US2915985A (en) * 1957-06-20 1959-12-08 New York Air Brake Co Pump
FR1221317A (en) * 1958-03-15 1960-06-01 Automatically variable flow pump
US3067693A (en) * 1958-12-24 1962-12-11 United Aircraft Corp Control means for variable delivery pump
US3165068A (en) * 1960-06-27 1965-01-12 American Brake Shoe Co Fluid power apparatus
US3062020A (en) * 1960-11-18 1962-11-06 Gen Motors Corp Refrigerating apparatus with compressor output modulating means
FR1295952A (en) * 1961-04-26 1962-06-15 Applic Mach Motrices Self-regulating device for variable flow pumps
US3099218A (en) * 1962-05-04 1963-07-30 Weatherhead Co Constant horsepower pump
US3250227A (en) * 1963-08-09 1966-05-10 American Brake Shoe Co Torque control apparatus for hydraulic power units

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106382215A (en) * 2016-12-13 2017-02-08 荆门市召铭液压科技有限公司 Single-control piston swash plate axial plunger pump

Also Published As

Publication number Publication date
JPS4940244B1 (en) 1974-11-01
FR1563864A (en) 1969-04-18
DE1906226A1 (en) 1969-10-02
US3575534A (en) 1971-04-20

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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