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GB701513A - Hydraulic control valve - Google Patents

Hydraulic control valve

Info

Publication number
GB701513A
GB701513A GB9134/50A GB913450A GB701513A GB 701513 A GB701513 A GB 701513A GB 9134/50 A GB9134/50 A GB 9134/50A GB 913450 A GB913450 A GB 913450A GB 701513 A GB701513 A GB 701513A
Authority
GB
United Kingdom
Prior art keywords
valve
servomotor
holes
sleeve
groups
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
GB9134/50A
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.)
Northrop Grumman Corp
Original Assignee
Northrop Grumman Corp
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 Northrop Grumman Corp filed Critical Northrop Grumman Corp
Publication of GB701513A publication Critical patent/GB701513A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16K11/0708—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 means to avoid jamming of the slide or means to modify the flow
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor

Landscapes

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

Abstract

701,513. Fluid-pressure servomotor-control systems; valve closure members. NORTHROP AIRCRAFT, Inc. April 13, 1950 [Oct. 25, 1949], No. 9134/50. Class 135 In a hydraulic control valve of the kind described in Specifications 701,092 and 701,504 for use in a hydraulic servomotor control system for the full power operation of aircraft control surfaces the groups of flow holes which meter the pressure liquid to and from the servomotor cylinder and in the neutral position of the valve permit a restricted flow to both sides of the servomotor piston to hydraulically lock it and render it ineffective from external loads applied to the control surface are reduced to two groups arranged in the valve sleeve. As shown, a valve spool 35, Fig. 3, slidably mounted in a ported sleeve 30 secured in a housing 19 between guide and cap members 31, 34 is formed with lands 59 which co-operate with groups of flow holes 76, Fig. 4, formed in the sleeve 30 and opening into grooves 66, 72 communicating respectively through housing passages 75, 75a with opposite ends of the servomotor cylinder. The diameters of the individual holes and the arrangement of the holes in the groups is such that in the neutral position of the valve, Fig. 3, one half of each end hole in each group is uncovered to permit a restricted flow of pressure liquid to each side of the piston and on movement of the valve spool from its neutral position in either direction one side of the piston is progressively opened to the pressure supply port 71 and the other side to the return port 62. The holes are spaced radially around the sleeve and staggered lengthwise thereof.
GB9134/50A 1949-10-25 1950-04-13 Hydraulic control valve Expired GB701513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US701513XA 1949-10-25 1949-10-25

Publications (1)

Publication Number Publication Date
GB701513A true GB701513A (en) 1953-12-30

Family

ID=22093460

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9134/50A Expired GB701513A (en) 1949-10-25 1950-04-13 Hydraulic control valve

Country Status (1)

Country Link
GB (1) GB701513A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2170864A1 (en) * 1972-02-04 1973-09-21 Shoketsu Kinzoku Kogyo
EP1577593A1 (en) * 2004-03-16 2005-09-21 HYDAC Electronic GmbH Spool valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2170864A1 (en) * 1972-02-04 1973-09-21 Shoketsu Kinzoku Kogyo
EP1577593A1 (en) * 2004-03-16 2005-09-21 HYDAC Electronic GmbH Spool valve

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