JPS4946805B1 - - Google Patents

Info

Publication number
JPS4946805B1
JPS4946805B1 JP45074649A JP7464970A JPS4946805B1 JP S4946805 B1 JPS4946805 B1 JP S4946805B1 JP 45074649 A JP45074649 A JP 45074649A JP 7464970 A JP7464970 A JP 7464970A JP S4946805 B1 JPS4946805 B1 JP S4946805B1
Authority
JP
Japan
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.)
Pending
Application number
JP45074649A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS4946805B1 publication Critical patent/JPS4946805B1/ja
Pending 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
JP45074649A 1969-08-28 1970-08-27 Pending JPS4946805B1 (zh)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
JPS4946805B1 true JPS4946805B1 (zh) 1974-12-12

Family

ID=5743980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP45074649A Pending JPS4946805B1 (zh) 1969-08-28 1970-08-27

Country Status (5)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5683051U (zh) * 1979-11-28 1981-07-04
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
CN103899596A (zh) * 2014-03-31 2014-07-02 雷永志 一种带先导单向阀的液压锁

Families Citing this family (19)

* 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
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
DE3520745A1 (de) * 1985-06-10 1986-12-11 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
WO1998055732A1 (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
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
CN100487291C (zh) * 2004-07-12 2009-05-13 迪芬巴赫控制系统股份有限公司 可去联锁的止回阀
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
AU2010249638B2 (en) * 2009-05-19 2015-01-22 Graco Minnesota Inc. Pneumatically actuated pilot valve
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
JP2023062388A (ja) * 2021-10-21 2023-05-08 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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5683051U (zh) * 1979-11-28 1981-07-04
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
CN103899596A (zh) * 2014-03-31 2014-07-02 雷永志 一种带先导单向阀的液压锁

Also Published As

Publication number Publication date
GB1293039A (en) 1972-10-18
AT306466B (de) 1973-04-10
FR2058412A2 (zh) 1971-05-28
US3631888A (en) 1972-01-04
FR2058412B2 (zh) 1973-05-25

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