[go: up one dir, main page]

GB1361919A - Hydraulic drive with special reference to electrical switchgear - Google Patents

Hydraulic drive with special reference to electrical switchgear

Info

Publication number
GB1361919A
GB1361919A GB5701172A GB5701172A GB1361919A GB 1361919 A GB1361919 A GB 1361919A GB 5701172 A GB5701172 A GB 5701172A GB 5701172 A GB5701172 A GB 5701172A GB 1361919 A GB1361919 A GB 1361919A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
chamber
position shown
moves
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
GB5701172A
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.)
BBC BROWN BOVERI and CIE
BBC Brown Boveri AG Switzerland
Original Assignee
BBC BROWN BOVERI and CIE
BBC Brown Boveri AG Switzerland
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 BBC BROWN BOVERI and CIE, BBC Brown Boveri AG Switzerland filed Critical BBC BROWN BOVERI and CIE
Publication of GB1361919A publication Critical patent/GB1361919A/en
Expired legal-status Critical Current

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
    • 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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/222—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which throttles the main fluid outlet as the piston approaches its end position
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)

Abstract

1361919 Hydraulic control circuits BBC BROWN BOVERI & CO Ltd 11 Dec 1972 [13 Dec 1971] 57011/72 Heading F1P With a reversing valve 11, Fig. 1, in the position shown, both sides 3, 8 of a piston 2 are connected via passages 7, 9 to an accumulator 4 and the piston moves to the position shown. The valve 11 is moved to the position shown when a chamber 15 is pressurized. This occurs when a valve 18 is opened to move a valve 14 to the position shown. When a valve 21 is opened the chamber 15 is depressurized by connecting it to a reservoir 6 and the spool of valve 14 moves upwards. Piston 13 now moves the valve 11 to the left to close the connection between passages 7 and 9 and to connect the chamber 8 to the reservoir 6. Since the chamber 3 is still under pressure the piston 2 moves to the right. Fig. 2 shows a construction of the piston 11 in which movements are damped by throttling ports 27. A spring-loaded throttling device 28 controls the flow of fluid to the reservoir. Valve seats 22, 23 are resiliently mounted and their movements are damped by oilfilled spaces 32 which are filled through ports 33. Fig. 3 shows a construction of the piston 2 in which shoulders 2c damp movement at the end of the stroke by co-operating with an annular space 37. In the opposite direction damping is effected by an annular space 38, Fig. 4 (not shown).
GB5701172A 1971-12-13 1972-12-11 Hydraulic drive with special reference to electrical switchgear Expired GB1361919A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1804271A CH539784A (en) 1971-12-13 1971-12-13 Hydraulic drive, in particular for electrical switching devices

Publications (1)

Publication Number Publication Date
GB1361919A true GB1361919A (en) 1974-07-30

Family

ID=4429986

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5701172A Expired GB1361919A (en) 1971-12-13 1972-12-11 Hydraulic drive with special reference to electrical switchgear

Country Status (9)

Country Link
US (1) US3863547A (en)
JP (1) JPS5627964B2 (en)
CA (1) CA973597A (en)
CH (1) CH539784A (en)
DE (1) DE2164759C2 (en)
FR (1) FR2163498B1 (en)
GB (1) GB1361919A (en)
IT (1) IT971707B (en)
SE (1) SE381952B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2235074B2 (en) * 1972-07-12 1979-05-17 Siemens Ag, 1000 Berlin Und 8000 Muenchen Hydraulic actuator for an electrical switch
DE2356607A1 (en) * 1973-11-13 1975-05-22 Bosch Gmbh Robert HYDRAULIC CONTROL SYSTEM
FR2265166B1 (en) * 1974-03-18 1979-10-19 Siemens Ag
FR2308815A1 (en) * 1975-04-23 1976-11-19 Alsthom Cgee Differential piston oleopneumatic control system for switch gear - closes by power valve connecting chambers together and to power accumulator
US4218955A (en) * 1979-01-10 1980-08-26 Outboard Marine Corporation Pressure actuated shifting mechanism
US4276809A (en) * 1979-04-23 1981-07-07 General Electric Company Simplified fail-fixed servovalve
DE3524414C2 (en) * 1985-04-16 1994-06-16 Mannesmann Ag linear actuator
DE3612827A1 (en) * 1986-04-16 1987-10-22 Bbc Brown Boveri & Cie HYDRAULIC DRIVE FOR AN ELECTRICAL SWITCHGEAR
US4785712A (en) * 1986-05-27 1988-11-22 Mitsubishi Denki Kabushiki Kaisha Hydraulic operating apparatus for electric circuit breaker
FR2641342A1 (en) * 1989-01-04 1990-07-06 Roux Roger FLUID ACTUATOR
DE4336074C2 (en) * 1993-10-22 1998-07-02 Abb Patent Gmbh Hydraulic device for a hydraulic drive for a high-voltage circuit breaker
DE4340533C2 (en) * 1993-11-29 1998-02-19 Abb Patent Gmbh Hydraulic device for actuating a drive piston for a movable component
US5718115A (en) * 1996-05-31 1998-02-17 Aim, Inc. Constant force hydraulic control system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293167A (en) * 1939-11-03 1942-08-18 Glenn L Martin Co Hydraulic cylinder
US2385942A (en) * 1941-06-13 1945-10-02 Edward A Rockwell Travel control valve system
US2704053A (en) * 1949-11-25 1955-03-15 Mcfarland Mfg Corp Actuator for chemical injector or the like
FR1098565A (en) * 1954-01-15 1955-08-08 Hydraulic control device for circuit breaker, or the like
US2993511A (en) * 1955-06-17 1961-07-25 Johnson Clarence Solenoid operated valve and solenoid assembly
US3060951A (en) * 1956-12-26 1962-10-30 Alsacienne Constr Meca Hydraulic regulating system
US3012541A (en) * 1959-04-02 1961-12-12 Pneumo Dynamics Corp Timed delay actuator
NL261563A (en) * 1960-03-01
CH381937A (en) * 1960-09-30 1964-09-15 Tschudin & Heid Aktiengesellsc Delay element
US3322038A (en) * 1964-04-09 1967-05-30 Sperry Rand Corp Hydraulic hammer
DE1550812A1 (en) * 1966-05-31 1969-10-09 Klose Kommandit Ges Electrohydraulic adjustment device with hydraulic accumulator
DE1690130C3 (en) * 1968-01-12 1979-02-15 Siemens Ag, 1000 Berlin U. 8000 Muenchen Hydraulic drive for electric circuit breakers
DE1703061C3 (en) * 1968-03-27 1974-02-14 Fried. Krupp Gmbh, 4300 Essen Hydraulically operated piston engine
FR1578917A (en) * 1968-05-06 1969-08-22

Also Published As

Publication number Publication date
JPS4865463A (en) 1973-09-08
DE2164759C2 (en) 1989-01-12
JPS5627964B2 (en) 1981-06-29
DE2164759A1 (en) 1973-06-14
IT971707B (en) 1974-05-10
CA973597A (en) 1975-08-26
US3863547A (en) 1975-02-04
CH539784A (en) 1973-07-31
FR2163498A1 (en) 1973-07-27
SE381952B (en) 1975-12-22
FR2163498B1 (en) 1979-04-27

Similar Documents

Publication Publication Date Title
US2462580A (en) Hydraulic valve and hydraulic power device embodying such valves
GB1361919A (en) Hydraulic drive with special reference to electrical switchgear
US3540348A (en) Fluid operated continuously actuated reciprocating piston drive
US2577462A (en) Pressure operated mechanism
GB1314103A (en) Telescopic hydraulic damper
JPH0610490B2 (en) Newmatic or hydronewmatic tension springs
GB1027184A (en) Hydraulic forming press
US3823736A (en) Electromagnetically operated valve
US2780065A (en) Closed hydraulic system
GB1401825A (en) Hydraulic control device
GB1387367A (en) Control device for an hydraulically actuated implement
CA2996155A1 (en) Double acting hydraulic pressure intensifier
US3572679A (en) Hydro-pneumatic oleo strut or suspension assemblage provided with level regulating means located within the cylinder housing
US3255777A (en) Directional control valve
GB1527423A (en) Door closing device
GB1303004A (en)
US2531511A (en) Four-way, slide, selector valve
NL6708641A (en)
US2868174A (en) Selector valve with snubbing action
GB995535A (en) Improvements in and relating to shuttle valves
GB1448929A (en) Delayed operation control valve means
US3158167A (en) Directional control and relief valves
GB1300306A (en) Spool valve
GB957851A (en) Improvements in or relating to hydraulic gears
GB1521834A (en) Hydraulic system

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