GB1369717A - Hydraulic pumps - Google Patents

Hydraulic pumps

Info

Publication number
GB1369717A
GB1369717A GB1700272A GB1700272A GB1369717A GB 1369717 A GB1369717 A GB 1369717A GB 1700272 A GB1700272 A GB 1700272A GB 1700272 A GB1700272 A GB 1700272A GB 1369717 A GB1369717 A GB 1369717A
Authority
GB
United Kingdom
Prior art keywords
controlled
hydraulic pumps
pump
spool
servopiston
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
GB1700272A
Other languages
English (en)
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.)
Unisys Corp
Original Assignee
Sperry Rand 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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB1369717A publication Critical patent/GB1369717A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/437—Pump capacity control by mechanical control means, e.g. by levers or pedals
    • 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
    • F04B1/30—Control of machines or pumps with rotary cylinder blocks
    • F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
    • F04B1/324—Control of machines or pumps with rotary cylinder blocks 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
    • 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
    • F04B49/06—Control using electricity
    • 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
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/472—Automatic regulation in accordance with output requirements for achieving a target output torque

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Fluid Gearings (AREA)
  • Control Of Transmission Device (AREA)
GB1700272A 1971-06-10 1972-04-13 Hydraulic pumps Expired GB1369717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15168071A 1971-06-10 1971-06-10

Publications (1)

Publication Number Publication Date
GB1369717A true GB1369717A (en) 1974-10-09

Family

ID=22539805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1700272A Expired GB1369717A (en) 1971-06-10 1972-04-13 Hydraulic pumps

Country Status (9)

Country Link
US (1) US3732041A (enExample)
JP (1) JPS5325121B1 (enExample)
AU (1) AU459560B2 (enExample)
CA (1) CA962163A (enExample)
DE (1) DE2227898B2 (enExample)
FR (1) FR2141334A5 (enExample)
GB (1) GB1369717A (enExample)
IT (1) IT952835B (enExample)
SE (1) SE379233B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189921A (en) * 1976-07-02 1980-02-26 Eaton Corporation Hydraulic controller

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924970A (en) * 1973-11-28 1975-12-09 Gen Motors Corp Electrically controlled fuel pump
US3941513A (en) * 1974-09-05 1976-03-02 Parker-Hannifin Corporation Variable displacement pump control assembly
US3955475A (en) * 1974-10-04 1976-05-11 Daikin Kogyo Co., Ltd. Axial piston power transmission
GB1555118A (en) * 1975-10-04 1979-11-07 Lucas Industries Ltd Servo pressure control arrangements for variable stroke pumps
GB1582453A (en) * 1976-07-02 1981-01-07 Eaton Corp Hydraulic controller
US4175914A (en) * 1977-05-31 1979-11-27 The Cessna Aircraft Company Hydraulic stop
US4194363A (en) * 1979-02-21 1980-03-25 General Signal Corporation Fluid horsepower control system
US4285639A (en) * 1979-06-12 1981-08-25 Parker-Hannifin Corporation Electronic control for variable displacement pumps
DE3211307A1 (de) * 1982-03-26 1983-09-29 Linde Ag, 6200 Wiesbaden Einstellbare axialkolbenpumpe mit einem regelorgan und regelorgan fuer solche
US4512723A (en) * 1983-10-17 1985-04-23 Sundstrand Corporation Pressure limiter
US4637781A (en) * 1984-03-30 1987-01-20 Kabushiki Kaisha Komatsu Seisakusho Torque regulating system for fluid operated pump displacement control systems
US5065577A (en) * 1989-11-22 1991-11-19 Sundstrand Corporation Hydromechanical displacement control for a power drive unit
JPH05126029A (ja) * 1991-10-31 1993-05-21 Toyota Autom Loom Works Ltd 可変容量ピストンポンプ
US6705203B2 (en) * 2001-11-28 2004-03-16 Sauer-Danfoss Inc. Extended male slipper servo pad arrangement for positioning swashplate and method assembling same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3252419A (en) * 1963-12-16 1966-05-24 Bendix Corp Pump inlet pressurizing system
US3286601A (en) * 1965-01-18 1966-11-22 Abex Corp Depressurizing and blocking valve means for variable displacement pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189921A (en) * 1976-07-02 1980-02-26 Eaton Corporation Hydraulic controller

Also Published As

Publication number Publication date
DE2227898B2 (de) 1976-04-01
CA962163A (en) 1975-02-04
IT952835B (it) 1973-07-30
AU459560B2 (en) 1975-03-27
US3732041A (en) 1973-05-08
SE379233B (enExample) 1975-09-29
AU4105672A (en) 1973-10-18
JPS5325121B1 (enExample) 1978-07-25
FR2141334A5 (enExample) 1973-01-19
DE2227898A1 (de) 1973-01-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years