GB899649A - Improvements in or relating to actuator systems of the kind including a hydraulic actuator - Google Patents

Improvements in or relating to actuator systems of the kind including a hydraulic actuator

Info

Publication number
GB899649A
GB899649A GB2075/60A GB207560A GB899649A GB 899649 A GB899649 A GB 899649A GB 2075/60 A GB2075/60 A GB 2075/60A GB 207560 A GB207560 A GB 207560A GB 899649 A GB899649 A GB 899649A
Authority
GB
United Kingdom
Prior art keywords
control
elevator
valve
solenoid
cylinder
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
GB2075/60A
Inventor
Alastair Michael Adai Majendie
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.)
S Smith and Sons Ltd
S Smith and Sons England Ltd
Original Assignee
S Smith and Sons Ltd
S Smith and Sons England 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 S Smith and Sons Ltd, S Smith and Sons England Ltd filed Critical S Smith and Sons Ltd
Priority to GB2075/60A priority Critical patent/GB899649A/en
Publication of GB899649A publication Critical patent/GB899649A/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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • 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

Landscapes

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

Abstract

899,649. Controlling aircraft. SMITH & SONS (ENGLAND) Ltd., S. Dec. 15, 1960 [Jan. 20, 1960], No. 2075/60. Class 4. [Also in Group XXIX] A servo system for operating an aircraft elevator 1, under either manual or automatic control comprises a cylinder 5, connected to the elevator, housing a piston secured by a rod 6 to the air frame 7. Two control valves 8, 12 mounted on the cylinder are hydraulically connected to a two-way changeover valve 14 which connects pressure and exhaust lines a, b to one or other of the valves in accordance with the control of a solenoid 19. The control valve 8 moves the elevator in response to movements of a manually actuated control member 2, while the control valve 12 is operated to move the elevator by a signal from an automatic pilot 3. When the solenoid 19 is energized the changeover valve 14 connects the lines a, b to the valve 12 and the elevator is under the control of the automatic pilot 3. Movements of the cylinder 5 move the control member 2 through a lost motion connection formed by stops 17, 18. If at any time the control member is moved with sufficient force, a spring strut 10 in the rod 9 incorporates a switch to de-energize the solenoid so that the valve 14 moves to the position for manual control. In the event that the switch in strut 10 fails, the lost motion stops 17, 18 operate a spring arm 15 to actuate the changeover valve.
GB2075/60A 1960-01-20 1960-01-20 Improvements in or relating to actuator systems of the kind including a hydraulic actuator Expired GB899649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2075/60A GB899649A (en) 1960-01-20 1960-01-20 Improvements in or relating to actuator systems of the kind including a hydraulic actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2075/60A GB899649A (en) 1960-01-20 1960-01-20 Improvements in or relating to actuator systems of the kind including a hydraulic actuator

Publications (1)

Publication Number Publication Date
GB899649A true GB899649A (en) 1962-06-27

Family

ID=9733146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2075/60A Expired GB899649A (en) 1960-01-20 1960-01-20 Improvements in or relating to actuator systems of the kind including a hydraulic actuator

Country Status (1)

Country Link
GB (1) GB899649A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462599A1 (en) * 1979-08-03 1981-02-13 Messerschmitt Boelkow Blohm SERVO CONTROL SYSTEM, IN PARTICULAR FOR AIRCRAFT OR ASTRONEF

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462599A1 (en) * 1979-08-03 1981-02-13 Messerschmitt Boelkow Blohm SERVO CONTROL SYSTEM, IN PARTICULAR FOR AIRCRAFT OR ASTRONEF

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