GB1256881A - - Google Patents

Info

Publication number
GB1256881A
GB1256881A GB1256881DA GB1256881A GB 1256881 A GB1256881 A GB 1256881A GB 1256881D A GB1256881D A GB 1256881DA GB 1256881 A GB1256881 A GB 1256881A
Authority
GB
United Kingdom
Prior art keywords
piston
inlet
outlet
acting
valves
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
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 filed Critical
Publication of GB1256881A publication Critical patent/GB1256881A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/003—Control of flow ratio using interconnected flow control elements
    • 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
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • 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
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86622—Motor-operated
    • Y10T137/8663—Fluid motor

Abstract

1,256,881. Valves. MARTONAIR Ltd. 24 March, 1969 [8 April, 1968], No. 16780/68. Heading F2V. [Also in Division Fl] A double-acting valve piston 2 is held in the position shown against inlet 3 by inlet pressure acting on annular shoulder 9. Movement to the left is initiated by a pressure signal admitted to port 18 and continues until the piston seats upon outlet 4. The piston is held in this position by inlet pressure acting on area C 2 until return movement is initiated by a pressure signal applied to port 17. The piston ends may alternatively engage within the inlet 3 and outlet 4 to close these, the arrangement being such that the inlet is closed before the outlet is opened; in either case the ends may act as piston valves rather than lift valves. The external conduit 20 can communicate with inlet-outlet ports of a single or double-acting motor; piston 2 can also provide a direct mechanical output.
GB1256881D 1968-04-08 1968-04-08 Expired GB1256881A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1678068 1968-04-08

Publications (1)

Publication Number Publication Date
GB1256881A true GB1256881A (en) 1971-12-15

Family

ID=10083541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1256881D Expired GB1256881A (en) 1968-04-08 1968-04-08

Country Status (6)

Country Link
US (1) US3533446A (en)
DE (1) DE1917885A1 (en)
FR (1) FR2005749A1 (en)
GB (1) GB1256881A (en)
NL (1) NL6905127A (en)
SE (1) SE346358B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924651A (en) * 1972-06-06 1975-12-09 Upjohn Co Metering or injection element
US3903418A (en) * 1973-12-14 1975-09-02 Forney International Infrared dynamic flame detector
US3968729A (en) * 1974-10-29 1976-07-13 United Technologies Corporation Fluid-operated apparatus exhibiting hysteresis effect
US4525183A (en) * 1982-11-26 1985-06-25 Pall Corporation Valves for desiccant dryers
US5546988A (en) * 1994-09-23 1996-08-20 Alliedsignal Inc. Servo multiplexing system

Also Published As

Publication number Publication date
US3533446A (en) 1970-10-13
FR2005749A1 (en) 1969-12-19
NL6905127A (en) 1969-10-10
DE1917885A1 (en) 1969-11-06
SE346358B (en) 1972-07-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee