GB1303328A - - Google Patents

Info

Publication number
GB1303328A
GB1303328A GB1931370A GB1931370A GB1303328A GB 1303328 A GB1303328 A GB 1303328A GB 1931370 A GB1931370 A GB 1931370A GB 1931370 A GB1931370 A GB 1931370A GB 1303328 A GB1303328 A GB 1303328A
Authority
GB
United Kingdom
Prior art keywords
passages
service
passage
valve
inlet
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
GB1931370A
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 GB1303328A publication Critical patent/GB1303328A/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
    • 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
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
    • F16K27/042—Hydraulic fluid leak traps
    • 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
    • Y10T137/8667—Reciprocating valve
    • Y10T137/86694—Piston valve
    • Y10T137/8671—With annular passage [e.g., spool]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Multiple-Way Valves (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1303328 Valves KOEHRING CO 22 April 1970 [3 Nov 1969] 19313/70 Heading F2V A control valve comprises a body having inlet passages 11, 12, an outlet passage 35, service passages 8, 9 and a valve chamber 6 with which the passages communicate at zones spaced from one another, a valve element 7 to control communication of the service passages with the inlet and outlet passages, and duct means 15, 40, 26, 27 communicating with the chamber for conducting to the outlet passage in by-pass relation to a service passage leakage fluid from the inlet passages when the valve element is in neutral position. In the embodiment of Fig. 1, the sliding spool valve comprises a valve body 5 having common pressure inlet passages 11, 12, two service passages 8, 9 and commoned exhaust passages 21, 22. In neutral position as shown, a pressure bridge passage 25 having the branches 26, 27 which intersect the valve chamber intermediate the inlets 11, 12 and the service passages 8, 9, is exhausted to the outlet passage 35 through a recess 15 in the spool between lands 42, 36. Pressure fluid is thereby prevented from reaching the service ports by any leakage path and unwanted operation of a motor connected to these ports is avoided. In another embodiment, Fig. 2 (not shown), the valve is symmetrical about a central inlet passage (56). Two bridge transfer passages (76, 77) outwardly of a pressure bridge passage (24) are connected in neutral position with exhaust bridge passages (21, 22) through recesses (45, 49) in the spool with the same result that pressure fluid is prevented from leaking to the service ports.
GB1931370A 1969-11-03 1970-04-22 Expired GB1303328A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87352169A 1969-11-03 1969-11-03

Publications (1)

Publication Number Publication Date
GB1303328A true GB1303328A (en) 1973-01-17

Family

ID=25361803

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1931370A Expired GB1303328A (en) 1969-11-03 1970-04-22

Country Status (7)

Country Link
US (1) US3575212A (en)
BE (1) BE753810A (en)
DE (1) DE2049876C3 (en)
FR (1) FR2071625A5 (en)
GB (1) GB1303328A (en)
NL (1) NL7015680A (en)
SE (1) SE361919B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4388949A (en) * 1980-12-11 1983-06-21 Bonney Roland W Multiple four-way control valve
JP4276491B2 (en) * 2003-08-04 2009-06-10 日立建機株式会社 Directional valve block

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2896662A (en) * 1956-09-07 1959-07-28 John V Thomas Multiple distribution valve
US3073340A (en) * 1959-12-10 1963-01-15 Electro Hydraulics Ltd Hydraulic systems
US3322150A (en) * 1964-12-10 1967-05-30 Gresen Mfg Company Valve
US3263570A (en) * 1965-03-29 1966-08-02 Robert E Heffron Hole milling attachment for machine tools

Also Published As

Publication number Publication date
DE2049876A1 (en) 1971-05-13
SE361919B (en) 1973-11-19
BE753810A (en) 1970-12-31
FR2071625A5 (en) 1971-09-17
US3575212A (en) 1971-04-20
DE2049876C3 (en) 1978-09-28
NL7015680A (en) 1971-05-05
DE2049876B2 (en) 1978-01-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years