FR2058412B2 - - Google Patents

Info

Publication number
FR2058412B2
FR2058412B2 FR707028930A FR7028930A FR2058412B2 FR 2058412 B2 FR2058412 B2 FR 2058412B2 FR 707028930 A FR707028930 A FR 707028930A FR 7028930 A FR7028930 A FR 7028930A FR 2058412 B2 FR2058412 B2 FR 2058412B2
Authority
FR
France
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
FR707028930A
Other languages
French (fr)
Other versions
FR2058412A2 (cs
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.)
BOSCH
Original Assignee
BOSCH
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
Priority claimed from DE1943692A external-priority patent/DE1943692C3/de
Application filed by BOSCH filed Critical BOSCH
Publication of FR2058412A2 publication Critical patent/FR2058412A2/fr
Application granted granted Critical
Publication of FR2058412B2 publication Critical patent/FR2058412B2/fr
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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • 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
    • F16K2200/00—Details of valves
    • F16K2200/30—Spring arrangements
    • F16K2200/304—Adjustable spring pre-loading
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7847—With leak passage
    • Y10T137/7848—Permits flow at valve interface
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7876—With external means for opposing bias
    • 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
    • Y10T137/86928—Sequentially progressive opening or closing of plural valves
    • Y10T137/86936—Pressure equalizing or auxiliary shunt flow
    • Y10T137/86944—One valve seats against other valve [e.g., concentric valves]
    • Y10T137/86984—Actuator moves both valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Check Valves (AREA)
  • Fluid-Driven Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
FR707028930A 1969-08-28 1970-08-05 Expired FR2058412B2 (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1943692A DE1943692C3 (de) 1968-12-12 1969-08-28 Federbelastetes Rückschlagventil

Publications (2)

Publication Number Publication Date
FR2058412A2 FR2058412A2 (cs) 1971-05-28
FR2058412B2 true FR2058412B2 (cs) 1973-05-25

Family

ID=5743980

Family Applications (1)

Application Number Title Priority Date Filing Date
FR707028930A Expired FR2058412B2 (cs) 1969-08-28 1970-08-05

Country Status (5)

Country Link
US (1) US3631888A (cs)
JP (1) JPS4946805B1 (cs)
AT (1) AT306466B (cs)
FR (1) FR2058412B2 (cs)
GB (1) GB1293039A (cs)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168865A (en) * 1977-11-14 1979-09-25 General Signal Corporation Hydraulic handbrake control system
JPS5683051U (cs) * 1979-11-28 1981-07-04
IT1131475B (it) * 1980-05-08 1986-06-25 Sigma Idraul Gen Macch Access Organo d'intercettazione telecomandabile ad intervento autoselettivo per condotte in pressione
DE3247420A1 (de) * 1982-12-22 1984-07-05 Mannesmann Rexroth GmbH, 8770 Lohr Hydraulisch entsperrbares rueckschlagventil
JPS6062961U (ja) * 1983-10-07 1985-05-02 スチールケースくろがね株式会社 プリンタ台
DE3520745C2 (de) * 1985-06-10 1987-05-14 Mannesmann Rexroth GmbH, 8770 Lohr Vorrichtung zur Schaltzeiteinstellung eines Ventilgliedes
US5255705A (en) * 1986-01-30 1993-10-26 Kabushiki Kaisha Komatsu Seisakusho Hydraulic pressure control system
SE500995C2 (sv) * 1993-03-02 1994-10-17 Sandvik Ab Backventil för hydrauliska system med automatiskt och manuellt omkopplingsbar funktion
US5494078A (en) * 1995-01-09 1996-02-27 The Aro Corporation Pneumatic lift device for dual flow valve
CA2264759A1 (en) * 1997-06-03 1998-12-10 Camco International Inc. Pressure equalizing safety valve for subterranean wells
US6283217B1 (en) 1998-08-06 2001-09-04 Schlumberger Technology Corp. Axial equalizing valve
US6296061B1 (en) 1998-12-22 2001-10-02 Camco International Inc. Pilot-operated pressure-equalizing mechanism for subsurface valve
DE10042716A1 (de) * 2000-08-31 2002-03-14 Mannesmann Rexroth Ag Entsperrbares Rückschlagventil für sehr hohe Systemdrücke
US6712242B2 (en) 2000-10-26 2004-03-30 International Dispensing Corporation Fluid dispensing system and dual-mode, system fluid actuated valve for use therein
GB2431708B (en) * 2004-07-12 2009-05-20 Tiefenbach Control Systems Gmbh Releasable non-return valve
US7163023B2 (en) * 2004-07-15 2007-01-16 Eaton Corporation Fuel vapor vent valve float assembly and method of making same
DE102005025917A1 (de) * 2005-06-06 2006-12-07 Marco Systemanalyse Und Entwicklung Gmbh Ventilpatrone und Ventilanordnung
KR101623229B1 (ko) * 2009-05-19 2016-05-20 그라코 미네소타 인크. 공압 작동식 파일럿 밸브
CN103899596B (zh) * 2014-03-31 2016-11-02 雷永志 一种带先导单向阀的液压锁
GB201904245D0 (en) * 2019-03-27 2019-05-08 Lontra Ltd Check Valve
NO345243B1 (en) * 2019-07-03 2020-11-16 Petroleum Technology Co As A valve arrangement
JP7722130B2 (ja) * 2021-10-21 2025-08-13 Smc株式会社 パイロットチェック弁

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US885459A (en) * 1907-05-22 1908-04-21 William B Engler Valve for gas-engines.
US1591671A (en) * 1923-01-26 1926-07-06 Westinghouse Electric & Mfg Co Valve-operating mechanism
US2382457A (en) * 1943-11-30 1945-08-14 Wertman David Cradle operating cylinder

Also Published As

Publication number Publication date
JPS4946805B1 (cs) 1974-12-12
GB1293039A (en) 1972-10-18
AT306466B (de) 1973-04-10
FR2058412A2 (cs) 1971-05-28
US3631888A (en) 1972-01-04

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