EP0285336A3 - Improvements relating to operating control arrangements for fluidic devices - Google Patents

Improvements relating to operating control arrangements for fluidic devices Download PDF

Info

Publication number
EP0285336A3
EP0285336A3 EP88302647A EP88302647A EP0285336A3 EP 0285336 A3 EP0285336 A3 EP 0285336A3 EP 88302647 A EP88302647 A EP 88302647A EP 88302647 A EP88302647 A EP 88302647A EP 0285336 A3 EP0285336 A3 EP 0285336A3
Authority
EP
European Patent Office
Prior art keywords
fluidic device
optical signal
signal generating
improvements relating
operating control
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.)
Withdrawn
Application number
EP88302647A
Other languages
German (de)
French (fr)
Other versions
EP0285336A2 (en
Inventor
John Phillip Dakin
Robert Barry Matthews
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.)
Plessey Overseas Ltd
Original Assignee
Plessey Overseas Ltd
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 Plessey Overseas Ltd filed Critical Plessey Overseas Ltd
Publication of EP0285336A2 publication Critical patent/EP0285336A2/en
Publication of EP0285336A3 publication Critical patent/EP0285336A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C1/00—Circuit elements having no moving parts
    • F15C1/02—Details, e.g. special constructional devices for circuits with fluid elements, such as resistances, capacitive circuit elements; devices preventing reaction coupling in composite elements ; Switch boards; Programme devices
    • F15C1/04—Means for controlling fluid streams to fluid devices, e.g. by electric signals or other signals, no mixing taking place between the signal and the flow to be controlled

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

A fluidic device operating arrangement which is especially for the remote control of a fluidic device in potentially explosive or electrically vulnerable environments comprises optical signal generating means and transducer means for converting the output derived from the optical signal generating means into a mechanical output either directly or through the intervention of further means to produce the requisite flow of operating fluid in the device for the operation thereof.
The transducer means may comprise a gas-filled light transmissive vessel which contains a small volume of fibrous material which undergoes very rapid heating and produces consequential expansion of the vessel walls for generating a mechanical pressure pulse which can be transmitted to the operating fluid fed to one or more control ports of the associated fluidic device.
EP88302647A 1987-03-30 1988-03-25 Improvements relating to operating control arrangements for fluidic devices Withdrawn EP0285336A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8707528 1987-03-30
GB878707528A GB8707528D0 (en) 1987-03-30 1987-03-30 Operating control arrangements for fluidic devices

Publications (2)

Publication Number Publication Date
EP0285336A2 EP0285336A2 (en) 1988-10-05
EP0285336A3 true EP0285336A3 (en) 1989-05-10

Family

ID=10614902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88302647A Withdrawn EP0285336A3 (en) 1987-03-30 1988-03-25 Improvements relating to operating control arrangements for fluidic devices

Country Status (2)

Country Link
EP (1) EP0285336A3 (en)
GB (1) GB8707528D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9008153D0 (en) * 1990-04-10 1990-06-06 Norgren Martonair Ltd Pneumatic actuator

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228411A (en) * 1964-01-22 1966-01-11 Harald W Straub Light transducer for fluid amplifier
CH416181A (en) * 1961-10-04 1966-06-30 Sperry Rand Corp Device for converting light signals into flow signals
US3534754A (en) * 1968-02-21 1970-10-20 Pitney Bowes Inc Transducer
US3591809A (en) * 1969-01-27 1971-07-06 Johnson Service Co Fluidic radiation sensor varying the viscosity of a fluid stream
US3760848A (en) * 1970-10-30 1973-09-25 Entwicklungs Und Forschungs Ag Signal transducer for fluidic controls
US4512371A (en) * 1983-06-13 1985-04-23 The United States Of America As Represented By The Secretary Of The Army Photofluidic interface
GB2165062A (en) * 1984-09-28 1986-04-03 Gen Electric Plc Optically controlled actuator
US4606375A (en) * 1985-06-04 1986-08-19 United Technologies Corporation Fluidic device
US4610274A (en) * 1985-06-04 1986-09-09 United Technologies Corporation Fluidic device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH416181A (en) * 1961-10-04 1966-06-30 Sperry Rand Corp Device for converting light signals into flow signals
US3228411A (en) * 1964-01-22 1966-01-11 Harald W Straub Light transducer for fluid amplifier
US3534754A (en) * 1968-02-21 1970-10-20 Pitney Bowes Inc Transducer
US3591809A (en) * 1969-01-27 1971-07-06 Johnson Service Co Fluidic radiation sensor varying the viscosity of a fluid stream
US3760848A (en) * 1970-10-30 1973-09-25 Entwicklungs Und Forschungs Ag Signal transducer for fluidic controls
US4512371A (en) * 1983-06-13 1985-04-23 The United States Of America As Represented By The Secretary Of The Army Photofluidic interface
GB2165062A (en) * 1984-09-28 1986-04-03 Gen Electric Plc Optically controlled actuator
US4606375A (en) * 1985-06-04 1986-08-19 United Technologies Corporation Fluidic device
US4610274A (en) * 1985-06-04 1986-09-09 United Technologies Corporation Fluidic device

Also Published As

Publication number Publication date
GB8707528D0 (en) 1987-05-07
EP0285336A2 (en) 1988-10-05

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