GB574179A - Improvements in or relating to valves for use in fluid pressure systems - Google Patents

Improvements in or relating to valves for use in fluid pressure systems

Info

Publication number
GB574179A
GB574179A GB53444A GB53444A GB574179A GB 574179 A GB574179 A GB 574179A GB 53444 A GB53444 A GB 53444A GB 53444 A GB53444 A GB 53444A GB 574179 A GB574179 A GB 574179A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
fluid
jack
pressure
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
GB53444A
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.)
Fairey Aviation Co Ltd
Original Assignee
Fairey Aviation 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 Fairey Aviation Co Ltd filed Critical Fairey Aviation Co Ltd
Priority to GB53444A priority Critical patent/GB574179A/en
Publication of GB574179A publication Critical patent/GB574179A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F16K11/0704—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides comprising locking elements

Landscapes

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

Abstract

574,179. Fluid-pressure servomotors; valves. FAIREY AVIATION CO., Ltd., LISLE, W. G., and CHURN, C. R. Jan. 11, 1944, No. 534. [Class 135] A control valve for fluid-pressure operated jacks comprises a piston valve c having a cam surface which operates to open a spring-closed valve d controlling the fluid-pressure supply when the piston valve is moved from its central position thus positively sealing off the fluidpressure supply when not in use and making it possible to reduce the overlap of the piston lands k over the ports o leading to the jack q to a minimum. As shown in Fig. 1, the valve d has a stem s rounded or bevelled at its end to suit a flat V-shaped groove t between the lands k. The valve d is closed by a spring e and controls the passage of pressure-fluid from a port f through a port g into the chamber b of the piston valve. The latter protrudes through the ends of the chamber b and is provided with passages m, n to facilitate passage of pressurefluid from the jack q back to the exhaust port r. One end of the piston valve is pivotally connected at x to a floating lever u, the ends of which are connected at v and y with the pistonrod w of the jack and with a control link z respectively. If desired, the piston-rod w may be fixed and the jack cylinder q movable. The latter is connected to the floating lever and, by flexible pipes p, to the control valve. Fig. 2 shows a modified form of spring-closed valve which is balanced as regards fluidpressure and has a stem 11 of the same area as the outlet port g with which it connects by a passage 13.
GB53444A 1944-01-11 1944-01-11 Improvements in or relating to valves for use in fluid pressure systems Expired GB574179A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB53444A GB574179A (en) 1944-01-11 1944-01-11 Improvements in or relating to valves for use in fluid pressure systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB53444A GB574179A (en) 1944-01-11 1944-01-11 Improvements in or relating to valves for use in fluid pressure systems

Publications (1)

Publication Number Publication Date
GB574179A true GB574179A (en) 1945-12-27

Family

ID=9706025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53444A Expired GB574179A (en) 1944-01-11 1944-01-11 Improvements in or relating to valves for use in fluid pressure systems

Country Status (1)

Country Link
GB (1) GB574179A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1087018B (en) * 1956-03-05 1960-08-11 Bendix Aviat Corp Control valve with closed center position for pressurized flow means, especially for hydraulic power steering
DE1128242B (en) * 1958-10-30 1962-04-19 Climax Rock Drill & Engineerin Three-way valve with pressure medium acting on a piston as a drive
US3280834A (en) * 1964-02-05 1966-10-25 Crawford Fitting Co Slide valve
GB2197433A (en) * 1986-11-13 1988-05-18 Sterling Hydraulics Limited Fluid control valves
CN110701124A (en) * 2018-07-09 2020-01-17 博世力士乐（北京）液压有限公司 Hydraulic valve and hydraulic system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1087018B (en) * 1956-03-05 1960-08-11 Bendix Aviat Corp Control valve with closed center position for pressurized flow means, especially for hydraulic power steering
DE1128242B (en) * 1958-10-30 1962-04-19 Climax Rock Drill & Engineerin Three-way valve with pressure medium acting on a piston as a drive
US3280834A (en) * 1964-02-05 1966-10-25 Crawford Fitting Co Slide valve
GB2197433A (en) * 1986-11-13 1988-05-18 Sterling Hydraulics Limited Fluid control valves
CN110701124A (en) * 2018-07-09 2020-01-17 博世力士乐（北京）液压有限公司 Hydraulic valve and hydraulic system

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