GB1527255A - Hydraulic control valves - Google Patents

Hydraulic control valves

Info

Publication number
GB1527255A
GB1527255A GB50777/75A GB5077775A GB1527255A GB 1527255 A GB1527255 A GB 1527255A GB 50777/75 A GB50777/75 A GB 50777/75A GB 5077775 A GB5077775 A GB 5077775A GB 1527255 A GB1527255 A GB 1527255A
Authority
GB
United Kingdom
Prior art keywords
port
valve
fluid
pressure
pilot
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
GB50777/75A
Other languages
English (en)
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.)
Unisys Corp
Original Assignee
Sperry Rand 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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB1527255A publication Critical patent/GB1527255A/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
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • 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
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87177—With bypass
    • Y10T137/87185—Controlled by supply or exhaust valve
    • 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
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87217—Motor
    • Y10T137/87225—Fluid motor
    • 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
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87233—Biased exhaust valve
    • Y10T137/87241—Biased closed

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Multiple-Way Valves (AREA)
GB50777/75A 1975-02-10 1975-12-11 Hydraulic control valves Expired GB1527255A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US548476A US3929159A (en) 1975-02-10 1975-02-10 Power transmission

Publications (1)

Publication Number Publication Date
GB1527255A true GB1527255A (en) 1978-10-04

Family

ID=24189007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50777/75A Expired GB1527255A (en) 1975-02-10 1975-12-11 Hydraulic control valves

Country Status (5)

Country Link
US (1) US3929159A (en:Method)
JP (1) JPS6234963B2 (en:Method)
CA (1) CA1029274A (en:Method)
DE (1) DE2554365C2 (en:Method)
GB (1) GB1527255A (en:Method)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170246A (en) * 1977-05-23 1979-10-09 Sta-Rite Industries, Inc. Pilot operator valve
US4145958A (en) * 1977-12-02 1979-03-27 Borg-Warner Corporation Fluid control system with automatically actuated motor port lock-out valves
JPH01112002A (ja) * 1987-07-06 1989-04-28 Kayaba Ind Co Ltd カウンタバランス機能を備えた制御装置
JP3397454B2 (ja) * 1994-08-05 2003-04-14 株式会社小松製作所 落下防止弁装置
JP2004301214A (ja) * 2003-03-31 2004-10-28 Hitachi Constr Mach Co Ltd 作業用車両の油圧駆動装置
US7921878B2 (en) * 2006-06-30 2011-04-12 Parker Hannifin Corporation Control valve with load sense signal conditioning
US10125797B2 (en) * 2014-11-21 2018-11-13 Parker-Hannifin Corporation Vent for load sense valves
US10590962B2 (en) * 2016-05-16 2020-03-17 Parker-Hannifin Corporation Directional control valve
US12085099B1 (en) * 2020-06-18 2024-09-10 Vacuworx Global, LLC Flow control block for use with a vacuum material handler
CN114352784B (zh) * 2022-01-19 2024-03-15 上海海岳液压机电工程有限公司 一种用于双向压力调节的节流阀

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3234957A (en) * 1963-04-22 1966-02-15 Fawick Corp Adjustable, metered directional flow control arrangement
US3680588A (en) * 1971-01-04 1972-08-01 Caterpillar Tractor Co High pressure implement hydraulic circuit
US3718159A (en) * 1971-01-20 1973-02-27 Hydraulic Industries Control valve

Also Published As

Publication number Publication date
JPS51104633A (en:Method) 1976-09-16
CA1029274A (en) 1978-04-11
JPS6234963B2 (en:Method) 1987-07-30
DE2554365A1 (de) 1976-08-26
US3929159A (en) 1975-12-30
DE2554365C2 (de) 1982-09-16

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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

Effective date: 19921211