EP0198635A3 - Fluid valves - Google Patents

Fluid valves Download PDF

Info

Publication number
EP0198635A3
EP0198635A3 EP86302507A EP86302507A EP0198635A3 EP 0198635 A3 EP0198635 A3 EP 0198635A3 EP 86302507 A EP86302507 A EP 86302507A EP 86302507 A EP86302507 A EP 86302507A EP 0198635 A3 EP0198635 A3 EP 0198635A3
Authority
EP
European Patent Office
Prior art keywords
lever
valve
strips
bore
lengths
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.)
Withdrawn
Application number
EP86302507A
Other languages
German (de)
French (fr)
Other versions
EP0198635A2 (en
Inventor
John Denis Smith
Peter James Davis
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.)
Claverham Holdings Ltd
Original Assignee
Fairey Hydraulics 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 Fairey Hydraulics Ltd filed Critical Fairey Hydraulics Ltd
Publication of EP0198635A2 publication Critical patent/EP0198635A2/en
Publication of EP0198635A3 publication Critical patent/EP0198635A3/en
Withdrawn legal-status Critical Current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
    • 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
    • F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • F15B13/0442—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors with proportional solenoid allowing stable intermediate positions
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/14—Pivoting armatures
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B2013/0412—Valve members; Fluid interconnections therefor with three positions
    • 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
    • F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • F15B2013/0448—Actuation by solenoid and permanent magnet

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Servomotors (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

An electrohydraulic servo valve (10) comprises a pair of electric motors (11) mounted on the body (13) of a linear hydraulic spool valve (12) and driving a common motor shaft (77) whose rotation is transmitted directly to the valve spool (20) by a pivoted lever (90), one end of which is engaged in a cross-bore (89) in the motor shaft (77) and the other end of which is engaged in a cross-bore (30) in the valve spool (20). The lever (90) is pivotally suspended by two integral rectangular-section thin steel strips projecting at right angle from opposite sides of the lever and secured by screwed-down integral mounting blocks (107) at their outer ends. The strips are arranged with their widths transverse to the length of the lever (90), and twist resiliently about their lengths as the lever pivots about a pivotal axis (92) coincident with the lengths of the strips (105,106) providing a frictionless pivotal suspension for the lever with a resilient centering action.
EP86302507A 1985-04-04 1986-04-04 Fluid valves Withdrawn EP0198635A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858508803A GB8508803D0 (en) 1985-04-04 1985-04-04 Fluid valves
GB8508803 1985-04-04

Publications (2)

Publication Number Publication Date
EP0198635A2 EP0198635A2 (en) 1986-10-22
EP0198635A3 true EP0198635A3 (en) 1987-01-14

Family

ID=10577199

Family Applications (2)

Application Number Title Priority Date Filing Date
EP86302506A Withdrawn EP0202011A3 (en) 1985-04-04 1986-04-04 Torque motors and valve assemblies
EP86302507A Withdrawn EP0198635A3 (en) 1985-04-04 1986-04-04 Fluid valves

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP86302506A Withdrawn EP0202011A3 (en) 1985-04-04 1986-04-04 Torque motors and valve assemblies

Country Status (3)

Country Link
EP (2) EP0202011A3 (en)
ES (2) ES8701940A1 (en)
GB (1) GB8508803D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793377A (en) * 1986-08-18 1988-12-27 E-Systems, Inc. Direct drive servo valve
DE3843646C2 (en) * 1988-12-23 1994-05-26 Spinner Georg Electromagnetic switch drive
CN103452931B (en) * 2012-06-05 2016-08-03 杨世祥 A kind of motor-driven plug-in mounting servo valve
GB201320192D0 (en) * 2013-11-15 2014-01-01 Blagdon Actuation Res Ltd Servo Valves

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1389514A (en) * 1972-04-11 1975-04-03 Doptique Precision Electroniqu Electrohydraulic servomechanisms
US4023593A (en) * 1976-02-17 1977-05-17 The Rucker Company Valve and control therefor
DE3415923A1 (en) * 1984-04-28 1985-11-07 Robert Bosch Gmbh, 7000 Stuttgart Directional control valve

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE360533C (en) * 1921-02-04 1922-10-03 Edmund Wolff Magnetic electric multi-pole small machine
DE1081558B (en) * 1957-05-13 1960-05-12 Otto Stahl Swing armature system for driving hair clippers u. like
US4061121A (en) * 1975-04-30 1977-12-06 Tecumseh Products Company Magneto-alternator with magneto energy limiting
DE2923052A1 (en) * 1979-06-07 1980-12-18 Werner Tesch Motor for electrically driven vehicle - has inner and outer permanent magnets on drive shaft and armature windings between
EP0058791A1 (en) * 1981-02-25 1982-09-01 Harold Winterbotham Electrical rotating machines
DE3113532A1 (en) * 1981-04-01 1982-11-04 Jai-Chun Dipl.-Ing. 1000 Berlin Chang Electrical machine
JPS5854859A (en) * 1981-09-29 1983-03-31 Yoshikazu Tateyama Generator
JPS6135145A (en) * 1984-07-26 1986-02-19 Sumitomo Special Metals Co Ltd Magnet type motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1389514A (en) * 1972-04-11 1975-04-03 Doptique Precision Electroniqu Electrohydraulic servomechanisms
US4023593A (en) * 1976-02-17 1977-05-17 The Rucker Company Valve and control therefor
DE3415923A1 (en) * 1984-04-28 1985-11-07 Robert Bosch Gmbh, 7000 Stuttgart Directional control valve

Also Published As

Publication number Publication date
ES553722A1 (en) 1987-11-16
EP0202011A2 (en) 1986-11-20
ES553721A0 (en) 1986-12-01
ES8701940A1 (en) 1986-12-01
EP0202011A3 (en) 1987-08-26
GB8508803D0 (en) 1985-05-09
EP0198635A2 (en) 1986-10-22

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Effective date: 19870915

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DAVIS, PETER JAMES

Inventor name: SMITH, JOHN DENIS