CH572275A5 - - Google Patents
Info
- Publication number
- CH572275A5 CH572275A5 CH314274A CH314274A CH572275A5 CH 572275 A5 CH572275 A5 CH 572275A5 CH 314274 A CH314274 A CH 314274A CH 314274 A CH314274 A CH 314274A CH 572275 A5 CH572275 A5 CH 572275A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
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- 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
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
- F15B13/0431—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the electrical control resulting in an on-off function
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
- F15C3/00—Circuit elements having moving parts
- F15C3/06—Circuit elements having moving parts using balls or pill-shaped disks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H2033/308—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator comprising control and pilot valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732311354 DE2311354A1 (de) | 1973-03-08 | 1973-03-08 | Hydraulische einrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
CH572275A5 true CH572275A5 (it) | 1976-01-30 |
Family
ID=5874069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH314274A CH572275A5 (it) | 1973-03-08 | 1974-03-06 |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH572275A5 (it) |
DE (1) | DE2311354A1 (it) |
IT (1) | IT1006385B (it) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE417127B (sv) * | 1978-08-25 | 1981-02-23 | Hydraul Innovation Ab | Hydrauliskt styrd kulventil fungerande som lasventil |
JPS591888A (ja) * | 1982-04-30 | 1984-01-07 | Aida Eng Ltd | 2方向切換バルブ |
DE4227562A1 (de) * | 1992-08-20 | 1994-02-24 | Abb Patent Gmbh | Verfahren zum Steuern eines Hydraulikantriebes |
CN201696385U (zh) * | 2009-11-20 | 2011-01-05 | Abb技术股份有限公司 | 控阀装置 |
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1973
- 1973-03-08 DE DE19732311354 patent/DE2311354A1/de active Pending
-
1974
- 1974-03-06 CH CH314274A patent/CH572275A5/xx not_active IP Right Cessation
- 1974-04-08 IT IT2094974A patent/IT1006385B/it active
Also Published As
Publication number | Publication date |
---|---|
IT1006385B (it) | 1976-09-30 |
DE2311354A1 (de) | 1974-09-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |