AT316239B - check valve - Google Patents

check valve

Info

Publication number
AT316239B
AT316239B AT131472A AT131472A AT316239B AT 316239 B AT316239 B AT 316239B AT 131472 A AT131472 A AT 131472A AT 131472 A AT131472 A AT 131472A AT 316239 B AT316239 B AT 316239B
Authority
AT
Austria
Prior art keywords
check valve
check
valve
Prior art date
Application number
AT131472A
Other languages
German (de)
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Application granted granted Critical
Publication of AT316239B publication Critical patent/AT316239B/en

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)
AT131472A 1971-02-27 1972-02-17 check valve AT316239B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2109378A DE2109378C3 (en) 1971-02-27 1971-02-27 Check valve with additional actuation

Publications (1)

Publication Number Publication Date
AT316239B true AT316239B (en) 1974-06-25

Family

ID=5800006

Family Applications (1)

Application Number Title Priority Date Filing Date
AT131472A AT316239B (en) 1971-02-27 1972-02-17 check valve

Country Status (5)

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

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2728004C2 (en) * 1977-06-22 1981-10-08 Danfoss A/S, 6430 Nordborg Hydraulic control device for a servomotor, in particular for vehicle steering
IT1129059B (en) * 1980-01-23 1986-06-04 Fiat Ricerche PRESSURE REGULATING VALVE FOR AN OPEN HYDRAULIC CIRCUIT
US4545287A (en) * 1982-10-22 1985-10-08 The Cessna Aircraft Company Metered lockout valve
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
FR2615585A1 (en) * 1987-05-20 1988-11-25 Joly Edouard Member for controlling or stopping fluid with a small opening force
US5960814A (en) * 1997-09-12 1999-10-05 Ngt, Llc. Counter balanced locking valve
DE19813909B4 (en) * 1998-03-28 2007-02-15 Dbt Gmbh Hydraulically actuated non-return valve for the removal hydraulics in mining underground operations
DE20312495U1 (en) * 2003-08-13 2003-12-18 Trw Fahrwerksysteme Gmbh & Co Kg Combined check and pressure relief valve
US8262058B2 (en) 2008-08-28 2012-09-11 Kot Norbert J Balanced pilot operated check valve
DE102011013176B4 (en) * 2011-03-05 2024-02-15 Robert Bosch Gmbh Mechanically unlockable check valve with pressure relief
CN103343826B (en) * 2013-07-05 2016-02-03 天津百利展发集团有限公司 Non-return valve
US9611871B2 (en) 2013-09-13 2017-04-04 Norbert J. Kot Pneumatic valve assembly and method
CN105332674B (en) * 2015-10-26 2017-11-17 东北石油大学 The two-way controllable valve door that underground low speed is opened, closed at a high speed
WO2021016357A2 (en) * 2019-07-23 2021-01-28 Schlumberger Technology Corporation Gas lift valve

Also Published As

Publication number Publication date
DE2109378A1 (en) 1972-09-14
FR2127773A5 (en) 1972-10-13
GB1379455A (en) 1975-01-02
DE2109378B2 (en) 1978-02-23
JPS558712B1 (en) 1980-03-05
DE2109378C3 (en) 1978-10-19

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee