GB670283A - Improvements in and relating to fluid operated follow-up servo mechanisms - Google Patents

Improvements in and relating to fluid operated follow-up servo mechanisms

Info

Publication number
GB670283A
GB670283A GB893649A GB893649A GB670283A GB 670283 A GB670283 A GB 670283A GB 893649 A GB893649 A GB 893649A GB 893649 A GB893649 A GB 893649A GB 670283 A GB670283 A GB 670283A
Authority
GB
United Kingdom
Prior art keywords
piston
valve
sleeve
movement
fluid
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
GB893649A
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.)
Boulton Paul Aircraft Ltd
Original Assignee
Boulton Paul Aircraft 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 Boulton Paul Aircraft Ltd filed Critical Boulton Paul Aircraft Ltd
Priority to GB893649A priority Critical patent/GB670283A/en
Publication of GB670283A publication Critical patent/GB670283A/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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/10—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage

Landscapes

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

Abstract

670,283. Fluid-pressure servomotor-control systems. BOULTON PAUL AIRCRAFT, Ltd., and NORTH, J. D. March 20, 1950 [April 1, 1949], No. 8936/49. Class 135. A fluid-operated follow-up servo-mechanism of the kind in which a piston valve 2 is movable axially to control ports in a sleeve 5 to supply fluid to and exhaust it from the opposite sides of a slave piston 4, said sleeve being movable with the slave piston so that the ports therein are closed by the valve as soon as the latter stops and the piston has moved in synchronism with the valve, is characterized in that the valve is rotated by a fluid jet or jets operating on vanes carried by the valve to prevent sticking of the latter to the sleeve. In an embodiment, the controlling impulse, e.g. from an automatic pilot, is applied through balls 21 to the spindle of valve 2. The valve is rotated by a turbine 26 revolving in a stationary frame 27, which is provided with passages 32 constituting jets tangential to the vanes on the turbine and supplied with pressure oil from a conduit 34. Pressure oil is also supplied continuously from a conduit 45 to the left-hand side of the servo-piston 4 and movement of the piston is effected when valve 2 is moved either to connect the right-hand side of the piston to exhaust or to connect it to the supply line 45, the movement of the piston in this latter instance being due to the differential effective areas of the two sides of the piston. The controlled object is connected to the servo-piston spindle 17. Follow-up movement is provided by transmitting the movement of piston 4 through a lever 9 to the sleeve 5. The sleeve is loaded to the left by a spring 16. The oil under pressure may be supplied by a rotary piston type pump with a spring-loaded reaction ring, but pneumatic instead of hydraulic actuation may be employed.
GB893649A 1949-04-01 1949-04-01 Improvements in and relating to fluid operated follow-up servo mechanisms Expired GB670283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB893649A GB670283A (en) 1949-04-01 1949-04-01 Improvements in and relating to fluid operated follow-up servo mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB893649A GB670283A (en) 1949-04-01 1949-04-01 Improvements in and relating to fluid operated follow-up servo mechanisms

Publications (1)

Publication Number Publication Date
GB670283A true GB670283A (en) 1952-04-16

Family

ID=9862185

Family Applications (1)

Application Number Title Priority Date Filing Date
GB893649A Expired GB670283A (en) 1949-04-01 1949-04-01 Improvements in and relating to fluid operated follow-up servo mechanisms

Country Status (1)

Country Link
GB (1) GB670283A (en)

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