JPS558712B1 - - Google Patents
Info
- Publication number
- JPS558712B1 JPS558712B1 JP2050472A JP2050472A JPS558712B1 JP S558712 B1 JPS558712 B1 JP S558712B1 JP 2050472 A JP2050472 A JP 2050472A JP 2050472 A JP2050472 A JP 2050472A JP S558712 B1 JPS558712 B1 JP S558712B1
- 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
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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Check Valves (AREA)
- Safety Valves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2109378A DE2109378C3 (de) | 1971-02-27 | 1971-02-27 | Rückschlagventil mit zusätzlicher Betätigung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS558712B1 true JPS558712B1 (enExample) | 1980-03-05 |
Family
ID=5800006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2050472A Pending JPS558712B1 (enExample) | 1971-02-27 | 1972-02-28 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS558712B1 (enExample) |
| AT (1) | AT316239B (enExample) |
| DE (1) | DE2109378C3 (enExample) |
| FR (1) | FR2127773A5 (enExample) |
| GB (1) | GB1379455A (enExample) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2728004C2 (de) * | 1977-06-22 | 1981-10-08 | Danfoss A/S, 6430 Nordborg | Hydraulische Steuervorrichtung für einen Servomotor, insbesondere für Fahrzeuglenkungen |
| IT1129059B (it) * | 1980-01-23 | 1986-06-04 | Fiat Ricerche | Valvola regolatrice di pressione per un circuito idraulico aperto |
| US4545287A (en) * | 1982-10-22 | 1985-10-08 | The Cessna Aircraft Company | Metered lockout valve |
| GB2141263A (en) * | 1983-06-08 | 1984-12-12 | Dowty Hydraulic Units Ltd | Servo valve |
| GB2141262A (en) * | 1983-06-08 | 1984-12-12 | Dowty Hydraulic Units Ltd | Servo valve |
| FR2615585A1 (fr) * | 1987-05-20 | 1988-11-25 | Joly Edouard | Organe de commande ou d'arret de fluide a effort d'ouverture reduit |
| US5960814A (en) * | 1997-09-12 | 1999-10-05 | Ngt, Llc. | Counter balanced locking valve |
| DE19813909B4 (de) * | 1998-03-28 | 2007-02-15 | Dbt Gmbh | Hydraulisch aufsteuerbares Rückschlagventil für die Ausbauhydraulik in Bergbau-Untertagebetrieben |
| DE20312495U1 (de) * | 2003-08-13 | 2003-12-18 | Trw Fahrwerksysteme Gmbh & Co Kg | Kombiniertes Rückschlag- und Überdruckventil |
| US8262058B2 (en) | 2008-08-28 | 2012-09-11 | Kot Norbert J | Balanced pilot operated check valve |
| DE102011013176B4 (de) * | 2011-03-05 | 2024-02-15 | Robert Bosch Gmbh | Mechanisch entsperrbares Sperrventil mit Druckentlastung |
| CN103343826B (zh) * | 2013-07-05 | 2016-02-03 | 天津百利展发集团有限公司 | 新型止回阀 |
| US9611871B2 (en) | 2013-09-13 | 2017-04-04 | Norbert J. Kot | Pneumatic valve assembly and method |
| CN105332674B (zh) * | 2015-10-26 | 2017-11-17 | 东北石油大学 | 井下低速开启、高速关闭的双向可控阀门 |
| WO2021016357A2 (en) * | 2019-07-23 | 2021-01-28 | Schlumberger Technology Corporation | Gas lift valve |
-
1971
- 1971-02-27 DE DE2109378A patent/DE2109378C3/de not_active Expired
-
1972
- 1972-02-17 AT AT131472A patent/AT316239B/de not_active IP Right Cessation
- 1972-02-24 FR FR7206313A patent/FR2127773A5/fr not_active Expired
- 1972-02-25 GB GB880972A patent/GB1379455A/en not_active Expired
- 1972-02-28 JP JP2050472A patent/JPS558712B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1379455A (en) | 1975-01-02 |
| FR2127773A5 (enExample) | 1972-10-13 |
| DE2109378B2 (de) | 1978-02-23 |
| DE2109378A1 (de) | 1972-09-14 |
| AT316239B (de) | 1974-06-25 |
| DE2109378C3 (de) | 1978-10-19 |