DE58907181D1 - Electro-hydraulic proportional directional valve. - Google Patents
Electro-hydraulic proportional directional valve.Info
- Publication number
- DE58907181D1 DE58907181D1 DE89122724T DE58907181T DE58907181D1 DE 58907181 D1 DE58907181 D1 DE 58907181D1 DE 89122724 T DE89122724 T DE 89122724T DE 58907181 T DE58907181 T DE 58907181T DE 58907181 D1 DE58907181 D1 DE 58907181D1
- Authority
- DE
- Germany
- Prior art keywords
- electro
- directional valve
- hydraulic proportional
- proportional directional
- hydraulic
- Prior art date
- 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 - Fee Related
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
- F15B13/02—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
-
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/355—Pilot pressure control
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
- F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/67—Methods for controlling pilot pressure
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Servomotors (AREA)
- Multiple-Way Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3844336A DE3844336A1 (en) | 1988-12-30 | 1988-12-30 | ELECTROHYDRAULIC PORPORTIONAL WAY VALVE |
Publications (1)
Publication Number | Publication Date |
---|---|
DE58907181D1 true DE58907181D1 (en) | 1994-04-14 |
Family
ID=6370536
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3844336A Withdrawn DE3844336A1 (en) | 1988-12-30 | 1988-12-30 | ELECTROHYDRAULIC PORPORTIONAL WAY VALVE |
DE89122724T Expired - Fee Related DE58907181D1 (en) | 1988-12-30 | 1989-12-09 | Electro-hydraulic proportional directional valve. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3844336A Withdrawn DE3844336A1 (en) | 1988-12-30 | 1988-12-30 | ELECTROHYDRAULIC PORPORTIONAL WAY VALVE |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0376023B1 (en) |
DE (2) | DE3844336A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0471884B1 (en) * | 1990-08-24 | 1996-02-21 | MOOG GmbH | Electrohydraulic servovalve |
DE4446144A1 (en) * | 1994-12-23 | 1996-06-27 | Bosch Gmbh Robert | Hydraulic control in monoblock design from at least two interlinked electromagnetically actuated proportional directional control valve elements |
DE102023200319A1 (en) | 2023-01-17 | 2024-07-18 | Robert Bosch Gesellschaft mit beschränkter Haftung | Fan drive device with proportional valve |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2840831C2 (en) * | 1978-09-20 | 1984-06-28 | Robert Bosch Gmbh, 7000 Stuttgart | Electro-hydraulic directional valve |
-
1988
- 1988-12-30 DE DE3844336A patent/DE3844336A1/en not_active Withdrawn
-
1989
- 1989-12-09 DE DE89122724T patent/DE58907181D1/en not_active Expired - Fee Related
- 1989-12-09 EP EP89122724A patent/EP0376023B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0376023A3 (en) | 1991-04-17 |
EP0376023B1 (en) | 1994-03-09 |
EP0376023A2 (en) | 1990-07-04 |
DE3844336A1 (en) | 1990-07-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |