WO2014111096A1 - Hydraulic servo valve / proportional distributor with a main slide position having auto-feedback and regulating apertures which are closed when the regulating stage is in the centre position - Google Patents

Hydraulic servo valve / proportional distributor with a main slide position having auto-feedback and regulating apertures which are closed when the regulating stage is in the centre position Download PDF

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Publication number
WO2014111096A1
WO2014111096A1 PCT/EG2014/000005 EG2014000005W WO2014111096A1 WO 2014111096 A1 WO2014111096 A1 WO 2014111096A1 EG 2014000005 W EG2014000005 W EG 2014000005W WO 2014111096 A1 WO2014111096 A1 WO 2014111096A1
Authority
WO
WIPO (PCT)
Prior art keywords
regulating
apertures
valve
main slide
centre position
Prior art date
Application number
PCT/EG2014/000005
Other languages
Arabic (ar)
French (fr)
Inventor
محمد أحمد الجميل،
Original Assignee
صندوق العلوم والتنمية التكنولوجية
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 صندوق العلوم والتنمية التكنولوجية filed Critical صندوق العلوم والتنمية التكنولوجية
Publication of WO2014111096A1 publication Critical patent/WO2014111096A1/en

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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
    • F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • 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
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves
    • F15B13/0403—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves a secondary valve member sliding within the main spool, e.g. for regeneration flow

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Servomotors (AREA)

Abstract

The invention concerns a two-stage hydraulic servo valve, the regulating control member of which is a stem disposed inside the main control member, which is the main slide. The valve is suitable for medium to high flow rates and can thus replace proportional distributors or servo valves having two or more stages. In the regulating stage of the valve, the apertures are closed in the centre position. The opening of the regulating apertures is brought about as a result of the control stem pivoting on its axis or linearly in the direction of its axis, whilst their closure is brought about by the displacement of the main slide, which enables the auto-feedback position of the main slide to be supplied. The design of the valve is such that it can be used with common torque motors with servo valves for control purposes, or conventional low-cost disc electric motors, or also with piezoelectric motors. In addition, the closure of the apertures in the centre position and the use of conventional control methods enables production, operation and maintenance costs to be reduced and the reaction speed and dynamic output to be considerably improved. Finally, the control valve lends itself to all types of assembly and may have apertures which are open in the centre position.
PCT/EG2014/000005 2013-01-20 2014-01-16 Hydraulic servo valve / proportional distributor with a main slide position having auto-feedback and regulating apertures which are closed when the regulating stage is in the centre position WO2014111096A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EG2013010103 2013-01-20
EG2013010103 2013-01-20

Publications (1)

Publication Number Publication Date
WO2014111096A1 true WO2014111096A1 (en) 2014-07-24

Family

ID=51209036

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EG2014/000005 WO2014111096A1 (en) 2013-01-20 2014-01-16 Hydraulic servo valve / proportional distributor with a main slide position having auto-feedback and regulating apertures which are closed when the regulating stage is in the centre position

Country Status (1)

Country Link
WO (1) WO2014111096A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3128215A1 (en) * 2015-08-03 2017-02-08 Safran Aero Boosters SA Fluid valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472281A (en) * 1966-01-14 1969-10-14 Tokyo Seimitsu Sokuki Kk Servo valve capable of effecting quick feed operation
US3721266A (en) * 1969-11-19 1973-03-20 Fujitsu Ltd Rotary pilot valve
US5186213A (en) * 1987-12-02 1993-02-16 Ebara Research Co. Ltd. 29
US5697401A (en) * 1995-07-14 1997-12-16 Ebara Corporation Hydraulic servovalve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472281A (en) * 1966-01-14 1969-10-14 Tokyo Seimitsu Sokuki Kk Servo valve capable of effecting quick feed operation
US3721266A (en) * 1969-11-19 1973-03-20 Fujitsu Ltd Rotary pilot valve
US5186213A (en) * 1987-12-02 1993-02-16 Ebara Research Co. Ltd. 29
US5697401A (en) * 1995-07-14 1997-12-16 Ebara Corporation Hydraulic servovalve

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3128215A1 (en) * 2015-08-03 2017-02-08 Safran Aero Boosters SA Fluid valve
BE1024089B1 (en) * 2015-08-03 2017-11-13 Safran Aero Boosters S.A. Fluidic valve
US10208873B2 (en) 2015-08-03 2019-02-19 Safran Aero Boosters S.A. Fluidic valve
EP3524866A1 (en) * 2015-08-03 2019-08-14 Safran Aero Boosters S.A. Fluid valve
EP3524865A1 (en) * 2015-08-03 2019-08-14 Safran Aero Boosters S.A. Fluid valve
EP3527865A1 (en) * 2015-08-03 2019-08-21 Safran Aero Boosters S.A. Fluid valve
RU2711526C2 (en) * 2015-08-03 2020-01-17 Сафран Аэро Бустерс С.А. Hydraulic valve

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