GB1427835A - Electrhydraulic control devices - Google Patents

Electrhydraulic control devices

Info

Publication number
GB1427835A
GB1427835A GB3893973A GB3893973A GB1427835A GB 1427835 A GB1427835 A GB 1427835A GB 3893973 A GB3893973 A GB 3893973A GB 3893973 A GB3893973 A GB 3893973A GB 1427835 A GB1427835 A GB 1427835A
Authority
GB
United Kingdom
Prior art keywords
electrhydraulic
aug
control devices
heading
piston
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
Application number
GB3893973A
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
Publication of GB1427835A publication Critical patent/GB1427835A/en
Expired 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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/008—Valve failure
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control 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
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B2013/0409—Position sensing or feedback of the valve member
    • 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
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
    • 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
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/86—Control during or prevention of abnormal conditions
    • F15B2211/863—Control during or prevention of abnormal conditions the abnormal condition being a hydraulic or pneumatic failure
    • F15B2211/8636—Circuit failure, e.g. valve or hose failure
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/875—Control measures for coping with failures
    • F15B2211/8755—Emergency shut-down

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Servomotors (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

1427835 Valves ROBERT BOSCH GmbH 17 Aug 1973 [18 Aug 1972] 38939/73 Heading F2V [Also in Division H2] An electrohydraulic system includes a slide valve 18 having a differential piston 35 and resetting springs 39, 40. The pressure medium system is controlled by two " electromagnetic 2/2 directional valves 44, 47 which have electrical control and protective circuits (see Heading H2K). The valve and piston have a two part housing joined at 32 and the system has a manually operable handle 31.
GB3893973A 1972-08-18 1973-08-17 Electrhydraulic control devices Expired GB1427835A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2240607A DE2240607C3 (en) 1972-08-18 1972-08-18 Electro-hydraulic «control device

Publications (1)

Publication Number Publication Date
GB1427835A true GB1427835A (en) 1976-03-10

Family

ID=5853876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3893973A Expired GB1427835A (en) 1972-08-18 1973-08-17 Electrhydraulic control devices

Country Status (10)

Country Link
US (1) US3831495A (en)
JP (1) JPS4951475A (en)
AT (1) AT323075B (en)
CH (1) CH551686A (en)
DE (1) DE2240607C3 (en)
FR (1) FR2196441B1 (en)
GB (1) GB1427835A (en)
IT (1) IT993003B (en)
NL (1) NL7311379A (en)
SE (1) SE399306B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200001A (en) * 1987-01-12 1988-07-20 Duraplug Elect Ltd Electric cable assembly with safety device

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5167887A (en) * 1974-12-11 1976-06-11 Shin Meiwa Ind Co Ltd ENKAKUSOSASOCHI
JPS52160791U (en) * 1976-05-31 1977-12-06
JPS54111126A (en) * 1978-02-20 1979-08-31 Toa Medical Electronics Fluid control valve
JPS57146901A (en) * 1981-03-04 1982-09-10 Toshiba Mach Co Ltd Pilot operating control valve
DE3110220A1 (en) * 1981-03-17 1982-10-07 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen HYDRAULIC, ESPECIALLY ELECTRO-HYDRAULIC EXTENSION CONTROL FOR UNDERGROUND PROFITING COMPANIES
JP2844476B2 (en) * 1989-09-11 1999-01-06 株式会社ゼクセル Control method of hydraulic actuator
US6930613B2 (en) * 2000-03-21 2005-08-16 Robert Gardner Electrical instruments circuits
US7661439B2 (en) * 2006-02-07 2010-02-16 Dresser, Inc. Safety override circuit for pneumatic positioner and method of use thereof
WO2017079792A1 (en) * 2015-11-09 2017-05-18 Elite Attachments Australia Pty Ltd A piston and cylinder system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390387A (en) * 1963-02-21 1968-06-25 Philips Corp Fail-safe monitor alarm circuit
US3407340A (en) * 1966-06-14 1968-10-22 Westinghouse Air Brake Co Fail-safe time delay relay
DE1807173A1 (en) * 1968-11-06 1970-06-18 Bosch Gmbh Robert Device for the electro-hydraulic remote control of hydraulic directional control valves
US3602772A (en) * 1968-12-04 1971-08-31 Wolf Geraete Gmbh Protective circuit for electrically driven lawn mowers and the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200001A (en) * 1987-01-12 1988-07-20 Duraplug Elect Ltd Electric cable assembly with safety device

Also Published As

Publication number Publication date
IT993003B (en) 1975-09-30
DE2240607B2 (en) 1978-08-17
FR2196441A1 (en) 1974-03-15
US3831495A (en) 1974-08-27
CH551686A (en) 1974-07-15
DE2240607A1 (en) 1974-02-28
FR2196441B1 (en) 1976-12-03
NL7311379A (en) 1974-02-20
DE2240607C3 (en) 1979-04-12
SE399306B (en) 1978-02-06
JPS4951475A (en) 1974-05-18
AT323075B (en) 1975-06-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee