AT306466B - Spring-loaded check valve - Google Patents

Spring-loaded check valve

Info

Publication number
AT306466B
AT306466B AT736070A AT736070A AT306466B AT 306466 B AT306466 B AT 306466B AT 736070 A AT736070 A AT 736070A AT 736070 A AT736070 A AT 736070A AT 306466 B AT306466 B AT 306466B
Authority
AT
Austria
Prior art keywords
spring
check valve
loaded check
loaded
valve
Prior art date
Application number
AT736070A
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
Priority claimed from DE1943692A external-priority patent/DE1943692C3/en
Application filed by Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Application granted granted Critical
Publication of AT306466B publication Critical patent/AT306466B/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
    • 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)
AT736070A 1969-08-28 1970-08-12 Spring-loaded check valve AT306466B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1943692A DE1943692C3 (en) 1968-12-12 1969-08-28 Spring loaded check valve

Publications (1)

Publication Number Publication Date
AT306466B true AT306466B (en) 1973-04-10

Family

ID=5743980

Family Applications (1)

Application Number Title Priority Date Filing Date
AT736070A AT306466B (en) 1969-08-28 1970-08-12 Spring-loaded check valve

Country Status (5)

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

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 (en) * 1979-11-28 1981-07-04
IT1131475B (en) * 1980-05-08 1986-06-25 Sigma Idraul Gen Macch Access REMOTE CONTROLLED INTERCEPTION BODY WITH SELF-SELECTIVE INTERVENTION FOR PRESSURE DUCTS
DE3247420A1 (en) * 1982-12-22 1984-07-05 Mannesmann Rexroth GmbH, 8770 Lohr HYDRAULICALLY UNLOCKABLE CHECK VALVE
JPS6062961U (en) * 1983-10-07 1985-05-02 スチールケースくろがね株式会社 printer stand
DE3520745C2 (en) * 1985-06-10 1987-05-14 Mannesmann Rexroth GmbH, 8770 Lohr Device for setting the switching time of a valve element
US5255705A (en) * 1986-01-30 1993-10-26 Kabushiki Kaisha Komatsu Seisakusho Hydraulic pressure control system
SE500995C2 (en) * 1993-03-02 1994-10-17 Sandvik Ab Check valve for hydraulic systems with automatic and manually switchable function
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
US6296061B1 (en) 1998-12-22 2001-10-02 Camco International Inc. Pilot-operated pressure-equalizing mechanism for subsurface valve
DE10042716A1 (en) * 2000-08-31 2002-03-14 Mannesmann Rexroth Ag Unlockable check valve for very high system pressures
US6712242B2 (en) 2000-10-26 2004-03-30 International Dispensing Corporation Fluid dispensing system and dual-mode, system fluid actuated valve for use therein
PL206052B1 (en) * 2004-07-12 2010-06-30 Tiefenbach Control Sys Gmbh Unblocked check valve
US7163023B2 (en) * 2004-07-15 2007-01-16 Eaton Corporation Fuel vapor vent valve float assembly and method of making same
DE102005025917A1 (en) * 2005-06-06 2006-12-07 Marco Systemanalyse Und Entwicklung Gmbh Valve cartridge, for lockable non-return valves for gallery lining frame struts, has main piston and control piston actuated by fluid fed through transverse channel in casing into an annular gap between it and wall of piston mounting bore
BRPI1013061A2 (en) * 2009-05-19 2016-04-05 Graco Minnesota Inc "pneumatically held pilot valve"
CN103899596B (en) * 2014-03-31 2016-11-02 雷永志 A kind of hydraulic lock of band guide's check 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
JP7722130B2 (en) * 2021-10-21 2025-08-13 Smc株式会社 Pilot Check Valve

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
FR2058412A2 (en) 1971-05-28
US3631888A (en) 1972-01-04
FR2058412B2 (en) 1973-05-25
GB1293039A (en) 1972-10-18
JPS4946805B1 (en) 1974-12-12

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Legal Events

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