JPS5754785A - Proportional control valve - Google Patents
Proportional control valveInfo
- 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
Links
Landscapes
- 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
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) |
-
1980
- 1980-09-17 JP JP12970380A patent/JPS5754785A/en active Pending
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