JPS6483986A - Valve control device - Google Patents

Valve control device

Info

Publication number
JPS6483986A
JPS6483986A JP23945287A JP23945287A JPS6483986A JP S6483986 A JPS6483986 A JP S6483986A JP 23945287 A JP23945287 A JP 23945287A JP 23945287 A JP23945287 A JP 23945287A JP S6483986 A JPS6483986 A JP S6483986A
Authority
JP
Japan
Prior art keywords
pressure
passage
opening
leak
fluid
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.)
Pending
Application number
JP23945287A
Other languages
Japanese (ja)
Inventor
Katsuyuki Tsuge
Seihei Moriya
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.)
Keihin Corp
Original Assignee
Keihin Seiki Manufacturing Co 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 Keihin Seiki Manufacturing Co Ltd filed Critical Keihin Seiki Manufacturing Co Ltd
Priority to JP23945287A priority Critical patent/JPS6483986A/en
Publication of JPS6483986A publication Critical patent/JPS6483986A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fluid-Driven Valves (AREA)

Abstract

PURPOSE:To keep the opening of a valve at a desired constant opening by open/close controlling the fluid leak passage branched from a pressure passage between a fluid-pressure operating type driving device for opening or closing the valve and a fluid pressure source in response to the pressure inside the pressure passage. CONSTITUTION:A throttle valve 3 for open/close controlling a fluid passage 2 is actuated by a piston 8. The pressure receiving chamber 8A of the piston 8 is communicated with an air pump D through a pressure passage 20. In the pressure passage 20, a leak passage 22 is provided, and the effective area of the leak passage 22 is variably controlled by moving a needle 24 up and down via an electromagnetic actuator E. By applying the output of a pressure transducer P having been arranged in the pressure passage 20 to the electromagnetic actuator E of the leak control valve 24 which opens or closes the leak passage 22, even if any pressure change occurs, the opening of the throttle valve can be kept at a desired constant opening.
JP23945287A 1987-09-24 1987-09-24 Valve control device Pending JPS6483986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23945287A JPS6483986A (en) 1987-09-24 1987-09-24 Valve control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23945287A JPS6483986A (en) 1987-09-24 1987-09-24 Valve control device

Publications (1)

Publication Number Publication Date
JPS6483986A true JPS6483986A (en) 1989-03-29

Family

ID=17044976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23945287A Pending JPS6483986A (en) 1987-09-24 1987-09-24 Valve control device

Country Status (1)

Country Link
JP (1) JPS6483986A (en)

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