ES8600468A1 - Proportioners. - Google Patents

Proportioners.

Info

Publication number
ES8600468A1
ES8600468A1 ES537264A ES537264A ES8600468A1 ES 8600468 A1 ES8600468 A1 ES 8600468A1 ES 537264 A ES537264 A ES 537264A ES 537264 A ES537264 A ES 537264A ES 8600468 A1 ES8600468 A1 ES 8600468A1
Authority
ES
Spain
Prior art keywords
proportioner
flow path
stepper motor
fail
fluid flow
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
ES537264A
Other languages
Spanish (es)
Other versions
ES537264A0 (en
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.)
BAE Systems PLC
Original Assignee
British Aerospace PLC
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 British Aerospace PLC filed Critical British Aerospace PLC
Publication of ES537264A0 publication Critical patent/ES537264A0/en
Publication of ES8600468A1 publication Critical patent/ES8600468A1/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
    • 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
    • F15B13/022—Flow-dividers; Priority valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Proportioners maybe used in hydraulic circuits to provide the symmetrical deployment of components controlled by these circuits. In the airbrake-deploying circuit of an aircraft, for example, certain fail-safe conditions must be satisfied i.e the symmetrical deployment of the airbraking surfaces, and therefore the inclusion of a proportioner is desirable if not essential. The invention described herein relates to a proportioner having twin fluid flow path which incorporates a stepper motor, the stepper motor being operable to adjust the flow in each flow path via throttling means so that the airbrakes, for example, are deployed synchronously. The proportioner is also inherently fail-safe, as the pressure differential in the two fluid flow path acts to cancel any imbalance which may be present in the hydraulic circuit should the stepper motor fail.
ES537264A 1983-11-01 1984-10-31 Proportioners. Expired ES8600468A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838329175A GB8329175D0 (en) 1983-11-01 1983-11-01 Proportioners

Publications (2)

Publication Number Publication Date
ES537264A0 ES537264A0 (en) 1985-09-16
ES8600468A1 true ES8600468A1 (en) 1985-09-16

Family

ID=10551062

Family Applications (1)

Application Number Title Priority Date Filing Date
ES537264A Expired ES8600468A1 (en) 1983-11-01 1984-10-31 Proportioners.

Country Status (4)

Country Link
EP (1) EP0140668B1 (en)
DE (1) DE3466425D1 (en)
ES (1) ES8600468A1 (en)
GB (1) GB8329175D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8629750D0 (en) * 1986-12-12 1987-01-21 British Aerospace Electro-hydraulic actuator assembly
GB2201234B (en) * 1987-02-19 1990-03-28 Moog Inc Ejector release unit and fluid flow dividing valve for the unit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2466485A (en) * 1944-03-11 1949-04-05 Bendix Aviat Corp Valve
FR2373093A1 (en) * 1976-12-03 1978-06-30 United Kingdom Government Control for breathing air in aircraft - has flow mixture from oxygen and air supplies regulated using transducer with output varied for ambient pressure
US4393319A (en) * 1980-12-08 1983-07-12 General Motors Corporation Electric motor powered actuator
FR2541391B1 (en) * 1983-02-17 1987-08-07 Outillage Air Comprime PROPORTIONAL HYDRAULIC DISTRIBUTION DEVICE AND APPLICATION TO A HYDRAULIC DISTRIBUTOR, A PRESSURE LIMITER, A FLOW REGULATOR AND A HYDRAULIC MACHINE

Also Published As

Publication number Publication date
GB8329175D0 (en) 1983-12-07
EP0140668A3 (en) 1985-06-12
DE3466425D1 (en) 1987-10-29
ES537264A0 (en) 1985-09-16
EP0140668A2 (en) 1985-05-08
EP0140668B1 (en) 1987-09-23

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