GB536612A - Improvements in servo motors - Google Patents

Improvements in servo motors

Info

Publication number
GB536612A
GB536612A GB2840439A GB2840439A GB536612A GB 536612 A GB536612 A GB 536612A GB 2840439 A GB2840439 A GB 2840439A GB 2840439 A GB2840439 A GB 2840439A GB 536612 A GB536612 A GB 536612A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
pressure
liner
coupled
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
GB2840439A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2840439A priority Critical patent/GB536612A/en
Publication of GB536612A publication Critical patent/GB536612A/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
    • F15B9/12—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 both the controlling element and the servomotor control the same member influencing a fluid passage and are connected to that member by means of a differential gearing

Landscapes

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

Abstract

536,612. Fluid-pressure servomotors. DODSON, E. Aug. 12, 1940, No. 28404/39. [Class 135] A hydraulic servomotor comprising a doubleacting cylinder with floating lever follow-up control has a byepass conduit between the two ends of the cylinder controlled by a relief valve which is normally held closed by the pressure of the fluid supply but is biassed to open the conduit in the event of the said pressure failing. The relief valve comprises a piston valve 243 with an'annular groove adapted to form a transfer passage between ports 240, 241 in a liner 239 leading through passages 236, 237 to the opposite sides of the power piston 12. The valve is normally held in the closed position against the action of a spring 251 by the pressure of the motivefluid acting on the top of the valve member. The power piston is controlled by a piston valve 14 working in a ported liner and coupled to an intermediate point of a floating lever 15. One end of this lever is coupled by a link 17 to the power pistons and to the element operated, for example the throttle of an internal combustion engine on an aircraft, while the other end is coupled to a hand control. In the event of the motive fluid supply failing the valve is moved so that it either engages a stop 34 or the nut 35 engages the end of the liner whereafter the floating lever mechanically operates the controlled elements, the relief valve permitting the free movement of the piston.
GB2840439A 1940-08-12 1940-08-12 Improvements in servo motors Expired GB536612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2840439A GB536612A (en) 1940-08-12 1940-08-12 Improvements in servo motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2840439A GB536612A (en) 1940-08-12 1940-08-12 Improvements in servo motors

Publications (1)

Publication Number Publication Date
GB536612A true GB536612A (en) 1941-05-21

Family

ID=10275082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2840439A Expired GB536612A (en) 1940-08-12 1940-08-12 Improvements in servo motors

Country Status (1)

Country Link
GB (1) GB536612A (en)

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