GB770600A - Open centre control valve for double-acting motors - Google Patents

Open centre control valve for double-acting motors

Info

Publication number
GB770600A
GB770600A GB16297/55A GB1629755A GB770600A GB 770600 A GB770600 A GB 770600A GB 16297/55 A GB16297/55 A GB 16297/55A GB 1629755 A GB1629755 A GB 1629755A GB 770600 A GB770600 A GB 770600A
Authority
GB
United Kingdom
Prior art keywords
bores
sleeve
motor
pressure fluid
whilst
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
GB16297/55A
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.)
New York Air Brake LLC
Original Assignee
New York Air Brake LLC
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 New York Air Brake LLC filed Critical New York Air Brake LLC
Publication of GB770600A publication Critical patent/GB770600A/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
    • 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
    • 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
    • Y10T137/86702—With internal flow passage

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)
  • Multiple-Way Valves (AREA)

Abstract

770,600. Piston valves. NEW YORK AIR BRAKE CO. June 7, 1955 [July 1, 1954], No. 16297/55. Class 135. A valve suitable for controlling a doubleacting hydraulic motor and for unloading a constantly running pump when the motor is not being operated consists of a fixed cylindrical seating 15 carried by a head 11 and surrounded by an axially movable sleeve 18 which is operable against a centring spring 25 by a stem 31 and is enclosed by a cap 12, the interior of which is connected by an opening 36 to exhaust. The seat 15 has three longitudinal bores 37, 39, 42, the last of which has a connection 47 with the pressure fluid supply, whilst the other two are connected to the opposite ends of the motor. The bore 42 communicates with cross-bores 43, 44, the latter connecting the pressure fluid supply to exhaust through opening 24 when the sleeve is in its central position. The bores 37, 39 also have cross-bores 38, 41 which are closed by the sleeve when in its central position. When the sleeve is displaced, the bores 44 are closed and an annular recess 19 in the sleeve interconnects the bores 43 with either the bores 38 or 41 so that one end of the motor is supplied with pressure fluid, whilst the other end is exhausted through whichever of the bores 38 or 41 are not connected to the bores 43.
GB16297/55A 1954-07-01 1955-06-07 Open centre control valve for double-acting motors Expired GB770600A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US440653A US2742056A (en) 1954-07-01 1954-07-01 Open center control valve for double-acting motors

Publications (1)

Publication Number Publication Date
GB770600A true GB770600A (en) 1957-03-20

Family

ID=23749627

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16297/55A Expired GB770600A (en) 1954-07-01 1955-06-07 Open centre control valve for double-acting motors

Country Status (2)

Country Link
US (1) US2742056A (en)
GB (1) GB770600A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151699B (en) * 1960-08-13 1963-07-18 Erich Herion Control spool

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004555A (en) * 1957-02-19 1961-10-17 Borg Warner Valves
US3129724A (en) * 1960-08-13 1964-04-21 Erich Herion Solenoid controlled distributing valve
US3352323A (en) * 1965-10-21 1967-11-14 Black & Decker Mfg Co Valve for reversible pneumatic tool
US3706324A (en) * 1970-06-29 1972-12-19 Price Pfister Brass Mfg Single-handle high volume tub filler

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2195069A (en) * 1938-07-11 1940-03-26 Northern Indiana Brass Co Valve
US2522142A (en) * 1948-12-08 1950-09-12 Seneca Falls Machine Co Air-operated rotating device and air supply and control mechanism therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151699B (en) * 1960-08-13 1963-07-18 Erich Herion Control spool

Also Published As

Publication number Publication date
US2742056A (en) 1956-04-17

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