FR2058412A2 - - Google Patents

Info

Publication number
FR2058412A2
FR2058412A2 FR7028930A FR7028930A FR2058412A2 FR 2058412 A2 FR2058412 A2 FR 2058412A2 FR 7028930 A FR7028930 A FR 7028930A FR 7028930 A FR7028930 A FR 7028930A FR 2058412 A2 FR2058412 A2 FR 2058412A2
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.)
Granted
Application number
FR7028930A
Other languages
French (fr)
Other versions
FR2058412B2 (enrdf_load_stackoverflow
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-Pressure Circuits (AREA)
  • Fluid-Driven Valves (AREA)
FR707028930A 1969-08-28 1970-08-05 Expired FR2058412B2 (enrdf_load_stackoverflow)

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 true FR2058412A2 (enrdf_load_stackoverflow) 1971-05-28
FR2058412B2 FR2058412B2 (enrdf_load_stackoverflow) 1973-05-25

Family

ID=5743980

Family Applications (1)

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

Country Status (5)

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

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 (enrdf_load_stackoverflow) * 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
US6079497A (en) * 1997-06-03 2000-06-27 Camco International Inc. Pressure equalizing safety valve for subterranean wells
US6283217B1 (en) 1998-08-06 2001-09-04 Schlumberger Technology Corp. Axial equalizing valve
GB2345076B (en) 1998-12-22 2001-06-20 Camco Int 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
WO2006005302A1 (de) * 2004-07-12 2006-01-19 Tiefenbach Control Systems Gmbh Entsperrbares rückschlagventil
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
ES2429890T3 (es) * 2009-05-19 2013-11-18 Graco Minnesota Inc. Válvula piloto accionada de manera neumática
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
FR2058412B2 (enrdf_load_stackoverflow) 1973-05-25
US3631888A (en) 1972-01-04
GB1293039A (en) 1972-10-18
AT306466B (de) 1973-04-10
JPS4946805B1 (enrdf_load_stackoverflow) 1974-12-12

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