GB1246712A - Valve seizure protection device - Google Patents

Valve seizure protection device

Info

Publication number
GB1246712A
GB1246712A GB1698569A GB1698569A GB1246712A GB 1246712 A GB1246712 A GB 1246712A GB 1698569 A GB1698569 A GB 1698569A GB 1698569 A GB1698569 A GB 1698569A GB 1246712 A GB1246712 A GB 1246712A
Authority
GB
United Kingdom
Prior art keywords
valve
pivot
fluid
pressure
fork
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
GB1698569A
Inventor
Jerzy Leon Courtenay
John Richard Simmons
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.)
HM Hobson Ltd
Original Assignee
HM Hobson 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 HM Hobson Ltd filed Critical HM Hobson Ltd
Priority to GB1698569A priority Critical patent/GB1246712A/en
Publication of GB1246712A publication Critical patent/GB1246712A/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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/008—Valve failure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C13/00—Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
    • B64C13/24—Transmitting means

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1,246,712. Fluid-pressure servomotor systems. H. M. HOBSON Ltd. May 28, 1970 [April 1, 1969], No.16985/69. Heading G3P. A hydraulic actuator for operating the flying control surface of an aircraft includes mechanism responsive to operation of the pilot's input member 2 in the event of seizure of the control valve 11 to operate a warning device. A pivot 39 forming part of the linkage between the member 2 and the valve remains stationary until the valve sticks when a pivot 36 becomes stationary and movement of the pivot 39 rotates levers 3 and 5 against the resistance of a spring-loaded plunger 7 to operate a micro-switch 6. On removal of fluid-pressure from the system, a spring 32 displaces a piston 31 until a fork 34 engages the pivot 36 to hold the valve 11 in its neutral position. Resistance to movement of the plunger 7 is also reduced by removal of fluid-pressure from a piston 9 so that testing of the operation of the microswitch is facilitated while the valve is held by the fork.
GB1698569A 1969-04-01 1969-04-01 Valve seizure protection device Expired GB1246712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1698569A GB1246712A (en) 1969-04-01 1969-04-01 Valve seizure protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1698569A GB1246712A (en) 1969-04-01 1969-04-01 Valve seizure protection device

Publications (1)

Publication Number Publication Date
GB1246712A true GB1246712A (en) 1971-09-15

Family

ID=10087162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1698569A Expired GB1246712A (en) 1969-04-01 1969-04-01 Valve seizure protection device

Country Status (1)

Country Link
GB (1) GB1246712A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399734A (en) * 1980-07-29 1983-08-23 Jacob Kobelt Power assist device for control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399734A (en) * 1980-07-29 1983-08-23 Jacob Kobelt Power assist device for control system

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