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
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)
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 (fr) | 1971-05-28 |
FR2058412B2 true FR2058412B2 (fr) | 1973-05-25 |
Family
ID=5743980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR707028930A Expired FR2058412B2 (fr) | 1969-08-28 | 1970-08-05 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3631888A (fr) |
JP (1) | JPS4946805B1 (fr) |
AT (1) | AT306466B (fr) |
FR (1) | FR2058412B2 (fr) |
GB (1) | GB1293039A (fr) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4168865A (en) * | 1977-11-14 | 1979-09-25 | General Signal Corporation | Hydraulic handbrake control system |
JPS5683051U (fr) * | 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 |
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 |
CN100487291C (zh) * | 2004-07-12 | 2009-05-13 | 迪芬巴赫控制***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 |
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 |
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)
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 |
-
1970
- 1970-08-05 FR FR707028930A patent/FR2058412B2/fr not_active Expired
- 1970-08-12 AT AT736070A patent/AT306466B/de not_active IP Right Cessation
- 1970-08-24 US US66490A patent/US3631888A/en not_active Expired - Lifetime
- 1970-08-27 GB GB41212/70A patent/GB1293039A/en not_active Expired
- 1970-08-27 JP JP45074649A patent/JPS4946805B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
AT306466B (de) | 1973-04-10 |
US3631888A (en) | 1972-01-04 |
JPS4946805B1 (fr) | 1974-12-12 |
FR2058412A2 (fr) | 1971-05-28 |
GB1293039A (en) | 1972-10-18 |