GB1335042A - Hydraulic actuator controls - Google Patents

Hydraulic actuator controls

Info

Publication number
GB1335042A
GB1335042A GB1335042DA GB1335042A GB 1335042 A GB1335042 A GB 1335042A GB 1335042D A GB1335042D A GB 1335042DA GB 1335042 A GB1335042 A GB 1335042A
Authority
GB
United Kingdom
Prior art keywords
hydraulic actuator
actuator controls
jan
heading
oct
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
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 Group Services Ltd
Original Assignee
Sperry Rand Ltd
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 Ltd filed Critical Sperry Rand Ltd
Publication of GB1335042A publication Critical patent/GB1335042A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3052—Shuttle valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional control characterised by the type of actuation actuated by fluid 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing circuits
    • F15B2211/6051—Load sensing circuits having valve means between output member and the load sensing circuit
    • F15B2211/6054—Load sensing circuits having valve means between output member and the load sensing circuit using shuttle valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
    • F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/67—Methods for controlling pilot 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soil Working Implements (AREA)

Abstract

1335042 Hydraulic motor control circuits SPERRY RAND Ltd 1 Jan 1971 [5 Jan 1970 6 Oct 1970] Divided out of 1335041 27151/73 and 27152/73 Heading F1P The description and drawings are substantially identical with those of the Specification 1335041, but the claims are different.
GB1335042D 1970-01-05 1970-01-05 Hydraulic actuator controls Expired GB1335042A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2715173 1970-01-05

Publications (1)

Publication Number Publication Date
GB1335042A true GB1335042A (en) 1973-10-24

Family

ID=10255046

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1335042D Expired GB1335042A (en) 1970-01-05 1970-01-05 Hydraulic actuator controls

Country Status (1)

Country Link
GB (1) GB1335042A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0002446A1 (en) * 1977-12-09 1979-06-27 Mannesmann Rexroth GmbH Electrically controlled four way valve functioning independently from the load
EP0021742A2 (en) * 1979-06-15 1981-01-07 Sperry Corporation Hydraulic actuator control
EP0023416A2 (en) * 1979-07-26 1981-02-04 Vickers Incorporated Hydraulic valve
EP0041247A2 (en) * 1980-06-03 1981-12-09 Backé, Wolfgang, Prof. Dr.-Ing. Pilot-operated device for load-independent flow control
EP0089412A2 (en) * 1982-03-22 1983-09-28 Caterpillar Inc. Fluid system with flow compensated torque control
EP0098719A2 (en) * 1982-07-02 1984-01-18 Vickers Incorporated Hydraulic valve with dual feedback control
EP0115073A2 (en) * 1983-01-03 1984-08-08 Weatherford Oil Tool GmbH Switching and control device for hydraulic or pneumatic equipments
EP0251603A2 (en) * 1986-06-24 1988-01-07 Group Lotus Plc Hydraulic actuator controlled by servovalve

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0002446A1 (en) * 1977-12-09 1979-06-27 Mannesmann Rexroth GmbH Electrically controlled four way valve functioning independently from the load
EP0021742A2 (en) * 1979-06-15 1981-01-07 Sperry Corporation Hydraulic actuator control
EP0021742A3 (en) * 1979-06-15 1981-05-27 Sperry Corporation Improvements in or relating to hydraulic actuator controls
EP0023416A2 (en) * 1979-07-26 1981-02-04 Vickers Incorporated Hydraulic valve
EP0023416A3 (en) * 1979-07-26 1981-12-30 Sperry Limited Hydraulic valve
US4413648A (en) * 1979-07-26 1983-11-08 Sperry Limited Hydraulic valves
EP0041247A2 (en) * 1980-06-03 1981-12-09 Backé, Wolfgang, Prof. Dr.-Ing. Pilot-operated device for load-independent flow control
EP0041247B1 (en) * 1980-06-03 1985-11-13 Backé, Wolfgang, Prof. Dr.-Ing. Pilot-operated device for load-independent flow control
EP0089412A3 (en) * 1982-03-22 1984-09-26 Caterpillar Tractor Co. Fluid system with flow compensated torque control
EP0089412A2 (en) * 1982-03-22 1983-09-28 Caterpillar Inc. Fluid system with flow compensated torque control
EP0098719A2 (en) * 1982-07-02 1984-01-18 Vickers Incorporated Hydraulic valve with dual feedback control
EP0098719A3 (en) * 1982-07-02 1984-08-01 Sperry Corporation Hydraulic valves with dual feedback control
EP0115073A2 (en) * 1983-01-03 1984-08-08 Weatherford Oil Tool GmbH Switching and control device for hydraulic or pneumatic equipments
EP0115073A3 (en) * 1983-01-03 1985-05-08 Weatherford Oil Tool Gmbh Switching and control device for hydraulic or pneumatic equipments
EP0251603A2 (en) * 1986-06-24 1988-01-07 Group Lotus Plc Hydraulic actuator controlled by servovalve
EP0251603A3 (en) * 1986-06-24 1989-12-06 Group Lotus Plc Hydraulic actuator controlled by servovalve

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414A Case decided by the comptroller ** specification amended (sect. 14/1949)
SPA Amended specification published
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee