IT8122554A0 - Apparato per l'isolamento individuale di valvole azionate idraulicamente. - Google Patents
Apparato per l'isolamento individuale di valvole azionate idraulicamente.Info
- Publication number
- IT8122554A0 IT8122554A0 IT8122554A IT2255481A IT8122554A0 IT 8122554 A0 IT8122554 A0 IT 8122554A0 IT 8122554 A IT8122554 A IT 8122554A IT 2255481 A IT2255481 A IT 2255481A IT 8122554 A0 IT8122554 A0 IT 8122554A0
- Authority
- IT
- Italy
- Prior art keywords
- operated valves
- individual isolation
- hydraulicly operated
- hydraulicly
- isolation
- Prior art date
Links
- 238000002955 isolation Methods 0.000 title 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
- F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
- F01D17/26—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical fluid, e.g. hydraulic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/20—Checking operation of shut-down devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Fluid-Driven Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/163,332 US4343454A (en) | 1980-06-26 | 1980-06-26 | Apparatus for individual isolation of hydraulically actuated valves |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8122554A0 true IT8122554A0 (it) | 1981-06-25 |
IT1137927B IT1137927B (it) | 1986-09-10 |
Family
ID=22589560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT22554/81A IT1137927B (it) | 1980-06-26 | 1981-06-25 | Apparato per l'isolamento individuale di valvole azionate idraulicamente |
Country Status (6)
Country | Link |
---|---|
US (1) | US4343454A (it) |
JP (1) | JPS5737170A (it) |
CA (1) | CA1163167A (it) |
ES (1) | ES503162A0 (it) |
IT (1) | IT1137927B (it) |
MX (1) | MX153704A (it) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT400172B (de) * | 1988-12-28 | 1995-10-25 | Sgp Va Energie Umwelt | Verfahren zum testen und testeinrichtung für dampfturbinen-regelventile |
EP0540963B1 (de) * | 1991-11-04 | 1995-08-30 | Asea Brown Boveri Ag | Speiseschaltung für eine Zweirohr-Hydraulik |
JPH068088U (ja) * | 1991-11-20 | 1994-02-01 | 昇 加藤 | ドアミラー |
US5665898A (en) * | 1993-12-29 | 1997-09-09 | Atlantic Richfield Company | Method and apparatus for testing solenoids in a safety system by bypassing the solenoid operated pilot valve |
US6112638A (en) * | 1999-04-30 | 2000-09-05 | The Foxboro Company | Electropneumatic positioner having binary input arrangement providing access to electrical output functions thereof |
JP2005098319A (ja) * | 2003-09-22 | 2005-04-14 | Toshiba Corp | 弁駆動装置およびそれを備えた弁 |
US7234678B1 (en) * | 2003-09-22 | 2007-06-26 | Kabushiki Kaisha Toshiba | Protection system for turbo machine and power generating equipment |
US7874241B2 (en) * | 2005-04-19 | 2011-01-25 | Emerson Process Management Power & Water Solutions, Inc. | Electronically controllable and testable turbine trip system |
JP5683895B2 (ja) * | 2010-10-14 | 2015-03-11 | 株式会社東芝 | 蒸気弁装置 |
US8794268B2 (en) * | 2010-11-05 | 2014-08-05 | Dresser-Rand Company | Voting hydraulic dump system |
PH12013000162A1 (en) | 2012-06-08 | 2015-03-16 | Emerson process man power and water solutions inc | Electronically controllable and testable turbine trip system with redundant bleed manifolds |
EP3088683B1 (en) * | 2015-04-30 | 2020-07-29 | General Electric Technology GmbH | Improved high-flow valve arrangement in steam turbine safety system |
JP7379184B2 (ja) | 2020-01-28 | 2023-11-14 | 三菱重工コンプレッサ株式会社 | 弁駆動装置及び蒸気タービンシステム |
US11851163B2 (en) | 2022-04-25 | 2023-12-26 | Hamilton Sundstrand Corporation | Hydraulically locking actuator configuration |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3182971A (en) * | 1963-10-21 | 1965-05-11 | St Regis Paper Co | Homogenizing valve control |
US3495501A (en) * | 1968-06-04 | 1970-02-17 | Gen Electric | Valve operating and emergency closing mechanism |
US3656708A (en) * | 1970-07-10 | 1972-04-18 | Westinghouse Electric Corp | Dump valve |
US3684236A (en) * | 1970-08-17 | 1972-08-15 | Westinghouse Electric Corp | Combined hydraulic dump and control valve structure |
SE372055B (it) * | 1973-03-23 | 1974-12-09 | Stal Laval Turbin Ab |
-
1980
- 1980-06-26 US US06/163,332 patent/US4343454A/en not_active Expired - Lifetime
-
1981
- 1981-06-05 CA CA000379181A patent/CA1163167A/en not_active Expired
- 1981-06-17 ES ES503162A patent/ES503162A0/es active Granted
- 1981-06-23 JP JP9611181A patent/JPS5737170A/ja active Pending
- 1981-06-25 IT IT22554/81A patent/IT1137927B/it active
- 1981-06-26 MX MX188043A patent/MX153704A/es unknown
Also Published As
Publication number | Publication date |
---|---|
IT1137927B (it) | 1986-09-10 |
MX153704A (es) | 1986-12-19 |
US4343454A (en) | 1982-08-10 |
ES8305459A1 (es) | 1983-04-01 |
CA1163167A (en) | 1984-03-06 |
JPS5737170A (en) | 1982-03-01 |
ES503162A0 (es) | 1983-04-01 |
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