CA1164725A - Displacement control for a hydraulic pump or motor with failure override - Google Patents

Displacement control for a hydraulic pump or motor with failure override

Info

Publication number
CA1164725A
CA1164725A CA000386412A CA386412A CA1164725A CA 1164725 A CA1164725 A CA 1164725A CA 000386412 A CA000386412 A CA 000386412A CA 386412 A CA386412 A CA 386412A CA 1164725 A CA1164725 A CA 1164725A
Authority
CA
Canada
Prior art keywords
control
control valve
swash plate
displacement
operative
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
CA000386412A
Other languages
English (en)
French (fr)
Inventor
H. Allen Myers
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.)
Sundstrand Corp
Original Assignee
Sundstrand 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 Sundstrand Corp filed Critical Sundstrand Corp
Application granted granted Critical
Publication of CA1164725A publication Critical patent/CA1164725A/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
    • F04B1/30—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Control Of Fluid Gearings (AREA)
CA000386412A 1980-11-21 1981-09-22 Displacement control for a hydraulic pump or motor with failure override Expired CA1164725A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/209,069 US4381702A (en) 1980-11-21 1980-11-21 Displacement control for a hydraulic pump or motor with failure override
US209,069 1980-11-21

Publications (1)

Publication Number Publication Date
CA1164725A true CA1164725A (en) 1984-04-03

Family

ID=22777198

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000386412A Expired CA1164725A (en) 1980-11-21 1981-09-22 Displacement control for a hydraulic pump or motor with failure override

Country Status (3)

Country Link
US (1) US4381702A (US20100268047A1-20101021-C00003.png)
JP (2) JPS57113978A (US20100268047A1-20101021-C00003.png)
CA (1) CA1164725A (US20100268047A1-20101021-C00003.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008042308A2 (en) 2006-09-29 2008-04-10 Government Of The United States Of America, As Represented By The Administrator Of The U.S. Environmental Protection Agency Safe over-center pump/motor

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4483663A (en) * 1982-08-23 1984-11-20 Sundstrand Corporation Output speed droop compensating pump control
US4631000A (en) * 1984-07-16 1986-12-23 Sundstrand Corporation Variable displacement hydraulic pressure intensifier
DE3728206A1 (de) * 1987-08-24 1989-03-16 Rexroth Mannesmann Gmbh Sicherheitsanordnung fuer eine an ein drucknetz mit eingepraegtem druck angeschlossene hydrostatische maschine
US5160245A (en) * 1991-05-01 1992-11-03 Sauer, Inc. Displacement control feedback apparatus and method
GB2342701A (en) * 1998-09-11 2000-04-19 Lucas Ind Plc Control of a variable displacement axial piston pump
US6176684B1 (en) 1998-11-30 2001-01-23 Caterpillar Inc. Variable displacement hydraulic piston unit with electrically operated variable displacement control and timing control
TW565652B (en) * 2002-12-13 2003-12-11 Ind Tech Res Inst Stirling engine with variable stroke
US8596057B2 (en) * 2009-10-06 2013-12-03 Caterpillar Inc. Method and apparatus for controlling a variable displacement hydraulic pump
US8661804B2 (en) * 2009-12-11 2014-03-04 Caterpillar Inc. Control system for swashplate pump
US9346347B2 (en) * 2010-04-21 2016-05-24 The United States Of America, As Represented By The Administrator Of The U.S. Environmental Protection Agency Methods for safe operation of hydraulic hybrid vehicles with over-center pump/motors
DE102012214619A1 (de) * 2012-08-17 2014-02-20 Robert Bosch Gmbh Aktoreinrichtung und Axialkolbenmaschine
EP2944818B1 (en) * 2013-11-20 2018-12-26 Jiangsu Hengli Hydraulic Technology Co., Ltd. Plunger pump power control device and control method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH469908A (de) * 1965-08-27 1969-03-15 Von Roll Ag Hydraulische Steuereinrichtung
JPS4940242B1 (US20100268047A1-20101021-C00003.png) * 1968-12-28 1974-11-01
US3881317A (en) * 1973-10-25 1975-05-06 Automation Equipment Inc Control system for variable displacement hydraulic pump
US3946560A (en) * 1974-02-13 1976-03-30 Sundstrand Corporation Hydrostatic transmission control
US4050247A (en) * 1976-10-07 1977-09-27 Eaton Corporation Control valve for variable displacement pump or motor
US4227443A (en) * 1978-09-25 1980-10-14 General Electric Company Fail-fixed servovalve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008042308A2 (en) 2006-09-29 2008-04-10 Government Of The United States Of America, As Represented By The Administrator Of The U.S. Environmental Protection Agency Safe over-center pump/motor
WO2008042308A3 (en) * 2006-09-29 2008-09-12 Us Gov Env Protection Agency Safe over-center pump/motor
US8356985B2 (en) 2006-09-29 2013-01-22 The United States Of America, As Represented By The Administrator Of The U.S. Environmental Protection Agency Safe over-center pump/motor

Also Published As

Publication number Publication date
JPH0430386Y2 (US20100268047A1-20101021-C00003.png) 1992-07-22
JPH0290365U (US20100268047A1-20101021-C00003.png) 1990-07-18
US4381702A (en) 1983-05-03
JPS57113978A (en) 1982-07-15

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Legal Events

Date Code Title Description
MKEX Expiry