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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
Application number
DE89122724T
Other languages
German (de)
Inventor
Eckard Schuttenberg
Berthold Dipl Ing Pfuhl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Application granted granted Critical
Publication of DE58907181D1 publication Critical patent/DE58907181D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
DE89122724T 1988-12-30 1989-12-09 Electro-hydraulic proportional directional valve. Expired - Fee Related DE58907181D1 (en)

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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59010152D1 (en) * 1990-08-24 1996-03-28 Moog Gmbh Electro-hydraulic servo valve
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
EP4467819B1 (en) 2023-05-23 2025-07-16 Danfoss Power Solutions ApS Hydraulic arrangement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
EP0376023A2 (en) 1990-07-04
EP0376023B1 (en) 1994-03-09
EP0376023A3 (en) 1991-04-17
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