DE2109378C3 - Rückschlagventil mit zusätzlicher Betätigung - Google Patents

Rückschlagventil mit zusätzlicher Betätigung

Info

Publication number
DE2109378C3
DE2109378C3 DE2109378A DE2109378A DE2109378C3 DE 2109378 C3 DE2109378 C3 DE 2109378C3 DE 2109378 A DE2109378 A DE 2109378A DE 2109378 A DE2109378 A DE 2109378A DE 2109378 C3 DE2109378 C3 DE 2109378C3
Authority
DE
Germany
Prior art keywords
valve
closure piece
seat
check valve
section
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
DE2109378A
Other languages
German (de)
English (en)
Other versions
DE2109378B2 (de
DE2109378A1 (de
Inventor
Rudolf 7100 Heilbronn Fritzsche
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
Priority to DE2109378A priority Critical patent/DE2109378C3/de
Priority to AT131472A priority patent/AT316239B/de
Priority to FR7206313A priority patent/FR2127773A5/fr
Priority to GB880972A priority patent/GB1379455A/en
Priority to JP2050472A priority patent/JPS558712B1/ja
Publication of DE2109378A1 publication Critical patent/DE2109378A1/de
Publication of DE2109378B2 publication Critical patent/DE2109378B2/de
Application granted granted Critical
Publication of DE2109378C3 publication Critical patent/DE2109378C3/de
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)
DE2109378A 1971-02-27 1971-02-27 Rückschlagventil mit zusätzlicher Betätigung Expired DE2109378C3 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE2109378A DE2109378C3 (de) 1971-02-27 1971-02-27 Rückschlagventil mit zusätzlicher Betätigung
AT131472A AT316239B (de) 1971-02-27 1972-02-17 Rückschlagventil
FR7206313A FR2127773A5 (enExample) 1971-02-27 1972-02-24
GB880972A GB1379455A (en) 1971-02-27 1972-02-25 Hydraulic control valve
JP2050472A JPS558712B1 (enExample) 1971-02-27 1972-02-28

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 (3)

Publication Number Publication Date
DE2109378A1 DE2109378A1 (de) 1972-09-14
DE2109378B2 DE2109378B2 (de) 1978-02-23
DE2109378C3 true DE2109378C3 (de) 1978-10-19

Family

ID=5800006

Family Applications (1)

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

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)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2728004C2 (de) * 1977-06-22 1981-10-08 Danfoss A/S, 6430 Nordborg Hydraulische Steuervorrichtung für einen Servomotor, insbesondere für Fahrzeuglenkungen
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
GB2141263A (en) * 1983-06-08 1984-12-12 Dowty Hydraulic Units Ltd Servo valve
GB2141262A (en) * 1983-06-08 1984-12-12 Dowty Hydraulic Units Ltd Servo valve
FR2615585A1 (fr) * 1987-05-20 1988-11-25 Joly Edouard Organe de commande ou d'arret de fluide a effort d'ouverture reduit
US5960814A (en) * 1997-09-12 1999-10-05 Ngt, Llc. Counter balanced locking valve
DE19813909B4 (de) * 1998-03-28 2007-02-15 Dbt Gmbh Hydraulisch aufsteuerbares Rückschlagventil für die Ausbauhydraulik in Bergbau-Untertagebetrieben
DE20312495U1 (de) * 2003-08-13 2003-12-18 Trw Fahrwerksysteme Gmbh & Co Kg Kombiniertes Rückschlag- und Überdruckventil
US8262058B2 (en) 2008-08-28 2012-09-11 Kot Norbert J Balanced pilot operated check valve
DE102011013176B4 (de) * 2011-03-05 2024-02-15 Robert Bosch Gmbh Mechanisch entsperrbares Sperrventil mit Druckentlastung
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
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
WO2021016357A2 (en) * 2019-07-23 2021-01-28 Schlumberger Technology Corporation Gas lift valve

Also Published As

Publication number Publication date
GB1379455A (en) 1975-01-02
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

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8320 Willingness to grant licences declared (paragraph 23)