GB1045881A - Improvements in or relating to hydraulic or pneumatic actuator systems for rams incorporating ram-locking means - Google Patents

Improvements in or relating to hydraulic or pneumatic actuator systems for rams incorporating ram-locking means

Info

Publication number
GB1045881A
GB1045881A GB4594161A GB4594161A GB1045881A GB 1045881 A GB1045881 A GB 1045881A GB 4594161 A GB4594161 A GB 4594161A GB 4594161 A GB4594161 A GB 4594161A GB 1045881 A GB1045881 A GB 1045881A
Authority
GB
United Kingdom
Prior art keywords
piston
ram
valve
duct
hydraulic
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
GB4594161A
Inventor
Peter Bruno Kahn
Thomas Alfred Oldfield
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.)
Plessey Co Ltd
Original Assignee
Plessey Co 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB4594161A priority Critical patent/GB1045881A/en
Publication of GB1045881A publication Critical patent/GB1045881A/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
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • 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
    • 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
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/325—Directional control characterised by the type of actuation mechanically actuated by an output member of the 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
    • F15B2211/30—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
    • F15B2211/70—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
    • F15B2211/72—Output members, e.g. hydraulic motors or cylinders or control therefor having locking means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Driven Valves (AREA)
  • Actuator (AREA)

Abstract

1,045,881. Fluid pressure apparatus. PLESSEY CO. Ltd. March 20, 1963 [Dec. 21, 1961], No. 45941/61. Heading F1P. [Also in Division B7] In an hydraulic or pneumatic actuator system especially for reversing the thrust of aircraft engines, a double-acting main ram 1 for opening the thrust reverse doors is locked in its extended position, in which the doors are open, by a pivoted lever 30 movable to its fully released position by an actuator rod 28 before a control valve 9 operates to cause the main ram 1 to move. In the fully locked position a selector valve 40 is positioned with its piston valve 41 moved to the right and the remainder of the system is positioned as shown. In this position pressure fluid is supplied through a duct 8, a central chamber 16 in the control valve 9 and a duct 19 leading to the ram cylinder 3 to act upon the side 7 of the ram piston 2, the fluid on the other side thereof being vented to atmosphere through a port 23. A branch duct 48 leading from the duct 8 supplies through the selector valve 40 and a duct 52 the side 39 of a piston 26 which carries the actuator rod 28. When the piston valve 41 is moved to the position shown, pressure fluid passes to the side 38 of the piston 26 to thereby displace the lock lever 30 and a piston valve 11 of the control valve 9. The movement of the piston valve 11 cuts-off the supply to the side 7 of the ram piston 2 and when the lock lever 30 is fully released connects the supply to the side 6 to retract the ram 1 and vent the side 7 to atmosphere through ducts 19 and 24.
GB4594161A 1961-12-21 1961-12-21 Improvements in or relating to hydraulic or pneumatic actuator systems for rams incorporating ram-locking means Expired GB1045881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4594161A GB1045881A (en) 1961-12-21 1961-12-21 Improvements in or relating to hydraulic or pneumatic actuator systems for rams incorporating ram-locking means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4594161A GB1045881A (en) 1961-12-21 1961-12-21 Improvements in or relating to hydraulic or pneumatic actuator systems for rams incorporating ram-locking means

Publications (1)

Publication Number Publication Date
GB1045881A true GB1045881A (en) 1966-10-19

Family

ID=10439184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4594161A Expired GB1045881A (en) 1961-12-21 1961-12-21 Improvements in or relating to hydraulic or pneumatic actuator systems for rams incorporating ram-locking means

Country Status (1)

Country Link
GB (1) GB1045881A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184488B (en) * 1985-12-16 1989-10-18 Denzal Wayne Van Winkle Self actuating locking and unlocking arrangement and method for reciprocating piston type actuators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184488B (en) * 1985-12-16 1989-10-18 Denzal Wayne Van Winkle Self actuating locking and unlocking arrangement and method for reciprocating piston type actuators

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