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SE8101580L - fluid pressure device - Google Patents

fluid pressure device

Info

Publication number
SE8101580L
SE8101580L SE8101580A SE8101580A SE8101580L SE 8101580 L SE8101580 L SE 8101580L SE 8101580 A SE8101580 A SE 8101580A SE 8101580 A SE8101580 A SE 8101580A SE 8101580 L SE8101580 L SE 8101580L
Authority
SE
Sweden
Prior art keywords
control
control pressure
pressure chamber
shank
port
Prior art date
Application number
SE8101580A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
Robert W Brundage
Original Assignee
Robert W Brundage
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 W Brundage filed Critical Robert W Brundage
Publication of SE8101580L publication Critical patent/SE8101580L/en

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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/03—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type with electrical 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
    • F15B13/042—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
    • F15B13/0436—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 pilot valves being of the steerable jet type

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Servomotors (AREA)
  • Magnetically Actuated Valves (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

1. Electromagnetically controlled servo drive with follow-up control, wherein : a) in a cylindrical chamber (10, 11) of a housing (H, M) having a high-pressure port (19, 20) and a low-pressure port (24, 25), an axially movable regulating piston (P) is acted upon by a control pressure in a control pressure chamber (22, 45) of the housing in opposition to a restoring force ; b) there is connected to the regulating position (P) an axial shank (E) which projects into the control pressure chamber (22, 45) and which has at least one pressure medium duct (70) opening into the control pressure chamber through a radial aperture (84) and connected to one of the ports (19, 20) ; and c) a spring-loaded (spring 95) sleeve-form control element (C) is provided which surrounds the shank (E) and which is adapted to be displaced axially relatively to the said shank by magnetic force and which, with a control edge (94) variably throttling a flow of pressure medium between the two ports (19, 20; 24, 25), controls the control pressure in the control pressure chamber (22, 45) ; characterised by the following features : d) the control element (C) is constructed as the armature of a proportional magnet device (S) surrounding said element, is situated in its entirety in the control pressure chamber (22, 45), and cooperates with its control edge (94) with the radial aperture (84) ; e) the other port (24, 25) is in throttled communication with the control pressure chamber (22, 45).
SE8101580A 1980-10-02 1981-03-12 fluid pressure device SE8101580L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18991380A 1980-10-02 1980-10-02
US20521480A 1980-11-12 1980-11-12

Publications (1)

Publication Number Publication Date
SE8101580L true SE8101580L (en) 1982-04-03

Family

ID=26885598

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8101580A SE8101580L (en) 1980-10-02 1981-03-12 fluid pressure device

Country Status (4)

Country Link
EP (1) EP0049714B1 (en)
FI (1) FI803795L (en)
NO (1) NO811257L (en)
SE (1) SE8101580L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561628A (en) * 1983-08-31 1985-12-31 Tokyo Keiki Company Limited Electromagnetically operated hydraulic actuator

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE911686C (en) * 1942-09-10 1954-05-17 Asea Ab Piston valve or slide with auxiliary control
US2930360A (en) * 1958-03-28 1960-03-29 Yando Stephen Servo mechanisms
DE1188398B (en) * 1961-09-02 1965-03-04 Siemens Ag Electro-hydraulic control device
FR1487472A (en) * 1966-05-26 1967-07-07 Charbonnages De France Hydraulic distributor
DE2047525A1 (en) * 1970-09-26 1972-03-30 Kracht Pumpen Motoren Control valve with a hydraulic adjustment drive for the control piston
DE2213439C3 (en) * 1972-03-20 1978-12-07 Robert Bosch Gmbh, 7000 Stuttgart Electro-hydraulic control device
DE2219929A1 (en) * 1972-04-22 1973-10-31 Teves Gmbh Alfred HYDRAULIC SERVO DEVICE FOR STEERING IN MOTOR VEHICLES
DE2232566C2 (en) * 1972-07-03 1984-08-09 Garbe, Lahmeyer & Co Ag, 5100 Aachen Hydraulic valve unit incorporating pre-control valve - with vibration of hydraulic fluid via oscillation generator and pulse width regulator
DE2461021A1 (en) * 1974-12-21 1976-06-24 Bosch Gmbh Robert DEVICE FOR CONTROLLING AT LEAST ONE HYDRAULIC CONTROL DEVICE
US3943824A (en) * 1975-01-22 1976-03-16 Deere & Company Hydraulic system

Also Published As

Publication number Publication date
FI803795A7 (en) 1982-04-03
NO811257L (en) 1982-04-05
EP0049714A1 (en) 1982-04-21
FI803795L (en) 1982-04-03
EP0049714B1 (en) 1986-04-23

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NAV Patent application has lapsed

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