GB1379455A - Hydraulic control valve - Google Patents

Hydraulic control valve

Info

Publication number
GB1379455A
GB1379455A GB880972A GB880972A GB1379455A GB 1379455 A GB1379455 A GB 1379455A GB 880972 A GB880972 A GB 880972A GB 880972 A GB880972 A GB 880972A GB 1379455 A GB1379455 A GB 1379455A
Authority
GB
United Kingdom
Prior art keywords
port
valve member
ball
main valve
feb
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
GB880972A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1379455A publication Critical patent/GB1379455A/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
    • F15B13/015—Locking-valves or other detent i.e. load-holding devices using an enclosed pilot flow valve
    • 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
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
    • F16K15/1826—Check valves which can be actuated by a pilot valve
    • 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
    • F16K39/00—Devices for relieving the pressure on the sealing faces
    • F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
    • F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Check Valves (AREA)
  • Safety Valves (AREA)
GB880972A 1971-02-27 1972-02-25 Hydraulic control valve Expired GB1379455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2109378A DE2109378C3 (de) 1971-02-27 1971-02-27 Rückschlagventil mit zusätzlicher Betätigung

Publications (1)

Publication Number Publication Date
GB1379455A true GB1379455A (en) 1975-01-02

Family

ID=5800006

Family Applications (1)

Application Number Title Priority Date Filing Date
GB880972A Expired GB1379455A (en) 1971-02-27 1972-02-25 Hydraulic control valve

Country Status (5)

Country Link
JP (1) JPS558712B1 (enExample)
AT (1) AT316239B (enExample)
DE (1) DE2109378C3 (enExample)
FR (1) FR2127773A5 (enExample)
GB (1) GB1379455A (enExample)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000090A (en) * 1977-06-22 1979-01-04 Danfoss As Fluid-flow valve arrangement especially for steering gear
GB2141262A (en) * 1983-06-08 1984-12-12 Dowty Hydraulic Units Ltd Servo valve
GB2141263A (en) * 1983-06-08 1984-12-12 Dowty Hydraulic Units Ltd Servo valve
US5960814A (en) * 1997-09-12 1999-10-05 Ngt, Llc. Counter balanced locking valve
GB2335967A (en) * 1998-03-28 1999-10-06 Dbt Gmbh Hydraulically trippable check valve
WO2005019707A1 (de) * 2003-08-13 2005-03-03 Trw Automotive Gmbh Kombiniertes rückschlag- und überdruckventil
US8262058B2 (en) 2008-08-28 2012-09-11 Kot Norbert J Balanced pilot operated check valve
CN103343826A (zh) * 2013-07-05 2013-10-09 天津百利展发集团有限公司 新型止回阀
US9611871B2 (en) 2013-09-13 2017-04-04 Norbert J. Kot Pneumatic valve assembly and method
WO2021016357A3 (en) * 2019-07-23 2021-03-04 Schlumberger Technology Corporation Gas lift valve

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1129059B (it) * 1980-01-23 1986-06-04 Fiat Ricerche Valvola regolatrice di pressione per un circuito idraulico aperto
US4545287A (en) * 1982-10-22 1985-10-08 The Cessna Aircraft Company Metered lockout valve
FR2615585A1 (fr) * 1987-05-20 1988-11-25 Joly Edouard Organe de commande ou d'arret de fluide a effort d'ouverture reduit
DE102011013176B4 (de) * 2011-03-05 2024-02-15 Robert Bosch Gmbh Mechanisch entsperrbares Sperrventil mit Druckentlastung
CN105332674B (zh) * 2015-10-26 2017-11-17 东北石油大学 井下低速开启、高速关闭的双向可控阀门

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000090A (en) * 1977-06-22 1979-01-04 Danfoss As Fluid-flow valve arrangement especially for steering gear
GB2000090B (en) * 1977-06-22 1982-02-10 Danfoss As Improvements in and related to a fluid-flow valve arrangement especially for steering gear
GB2141262A (en) * 1983-06-08 1984-12-12 Dowty Hydraulic Units Ltd Servo valve
GB2141263A (en) * 1983-06-08 1984-12-12 Dowty Hydraulic Units Ltd Servo valve
US5960814A (en) * 1997-09-12 1999-10-05 Ngt, Llc. Counter balanced locking valve
GB2335967A (en) * 1998-03-28 1999-10-06 Dbt Gmbh Hydraulically trippable check valve
US6073654A (en) * 1998-03-28 2000-06-13 Dbt Deutsche Bergbau-Technik Gmbh Hydraulically trippable check valve for underground mine support hydraulics
GB2335967B (en) * 1998-03-28 2002-03-06 Dbt Gmbh Hydraulically trippable check valve for underground mine support hydraulics
WO2005019707A1 (de) * 2003-08-13 2005-03-03 Trw Automotive Gmbh Kombiniertes rückschlag- und überdruckventil
US8262058B2 (en) 2008-08-28 2012-09-11 Kot Norbert J Balanced pilot operated check valve
CN103343826A (zh) * 2013-07-05 2013-10-09 天津百利展发集团有限公司 新型止回阀
CN103343826B (zh) * 2013-07-05 2016-02-03 天津百利展发集团有限公司 新型止回阀
US9611871B2 (en) 2013-09-13 2017-04-04 Norbert J. Kot Pneumatic valve assembly and method
WO2021016357A3 (en) * 2019-07-23 2021-03-04 Schlumberger Technology Corporation Gas lift valve

Also Published As

Publication number Publication date
JPS558712B1 (enExample) 1980-03-05
FR2127773A5 (enExample) 1972-10-13
DE2109378B2 (de) 1978-02-23
DE2109378A1 (de) 1972-09-14
AT316239B (de) 1974-06-25
DE2109378C3 (de) 1978-10-19

Similar Documents

Publication Publication Date Title
GB1379455A (en) Hydraulic control valve
GB1387773A (en) Fluid valve assemblies
GB1427503A (en) Control system for fluid-driven motors
GB979596A (en) Improvements in or relating to a balanced poppet valve
GB1368996A (en) Valve systems
GB1241365A (en) Three-way directional control valve
US3064426A (en) Hydraulic systems
GB1294600A (en) Hydraulic valve assemblies
GB1537338A (en) Hydraulic distributor
GB1447303A (en) Combunation backflow preventer and anti-siphon valve
GB1444613A (en) Control valve with flow control means
GB1382593A (en) Hydraulic flow control vavle assemblies
GB1512385A (en) Multiway valves
GB1418260A (en) Hydraulic system incorporating a check valve
GB1393450A (en) Combined over-and-under pressure relief valves
GB1505417A (en) Hydraulic motor control and brake system
GB1465798A (en) Safety valve
GB1258733A (enExample)
GB1034108A (en) Improvements in or relating to apparatus for controlling a fluid power motor
GB1422939A (en) Hydraulic valves
GB1128164A (en) Improvements in or relating to fluid flow control valves
GB1287705A (en) A non-return valve
US2827768A (en) Hydraulic circuit with flow divider
GB1180214A (en) Fluid Pressure Operable Valves
JPS56167902A (en) Reducing type pressure compensation valve with check valve

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years