JPS5754785A - Proportional control valve - Google Patents

Proportional control valve

Info

Publication number
JPS5754785A
JPS5754785A JP12970380A JP12970380A JPS5754785A JP S5754785 A JPS5754785 A JP S5754785A JP 12970380 A JP12970380 A JP 12970380A JP 12970380 A JP12970380 A JP 12970380A JP S5754785 A JPS5754785 A JP S5754785A
Authority
JP
Japan
Prior art keywords
motor
pressure
potentiometer
resistance value
gas pressure
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
JP12970380A
Other languages
Japanese (ja)
Inventor
Takashi Tanahashi
Shigeru Shirai
Masaji Yamauchi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP12970380A priority Critical patent/JPS5754785A/en
Publication of JPS5754785A publication Critical patent/JPS5754785A/en
Pending legal-status Critical Current

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  • Magnetically Actuated Valves (AREA)

Abstract

PURPOSE: To accurately control feed gas pressure in a proportional control valve used for control of the feed gas pressure to a gas combustion equipment, by both controlling a pressure regulating spring in a gas governor with a motor and providing a detector for detecting an extension position of the spring.
CONSTITUTION: Rotary motion of a motor 25 is converted into linear motion by a screw 24 and nut 23 to adjust tension of a spring 22 acting upon a valve 17. Simultaneously a rotary position of the motor 25 is transmitted to a potentiometer 28 through gears 27, 30 and detected as an electrical resistance value. That is, a resistance value of the potentiometer 28 can be allowed to correspond to gas pressure in a secondary pressure chamber 18. Accordingly, the motor 25 is rotated, in such a manner that the resistance value of the potentiometer 28 corresponds to objective gas pressure, to form an automatic control system, thus hysteresis and unevenness of pressure in the secondary pressure chamber 18 can be eliminated.
COPYRIGHT: (C)1982,JPO&Japio
JP12970380A 1980-09-17 1980-09-17 Proportional control valve Pending JPS5754785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12970380A JPS5754785A (en) 1980-09-17 1980-09-17 Proportional control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12970380A JPS5754785A (en) 1980-09-17 1980-09-17 Proportional control valve

Publications (1)

Publication Number Publication Date
JPS5754785A true JPS5754785A (en) 1982-04-01

Family

ID=15016106

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12970380A Pending JPS5754785A (en) 1980-09-17 1980-09-17 Proportional control valve

Country Status (1)

Country Link
JP (1) JPS5754785A (en)

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