JPS571882A - Control of valve - Google Patents
Control of valveInfo
- Publication number
- JPS571882A JPS571882A JP7431080A JP7431080A JPS571882A JP S571882 A JPS571882 A JP S571882A JP 7431080 A JP7431080 A JP 7431080A JP 7431080 A JP7431080 A JP 7431080A JP S571882 A JPS571882 A JP S571882A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- valve
- side chamber
- auxiliary valve
- open side
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Fluid-Driven Valves (AREA)
- Control Of Water Turbines (AREA)
Abstract
PURPOSE: To enable prevention of a cylinder from breaking by restricting the supply of controlled hydraulic pressure to a closed side of a valve driving gear in accordance with the supply side pressure of the valve driving gear and the exhaust oil side pressure thereof.
CONSTITUTION: The self-enclosing force torque acting on a valve body 16 acts on an open side chamber 26 via a lever 18 and a piston 22. As a result, the pressure of the open side chamber 26 and a pressure oil pipe 42 for moving an auxiliary valve upward becomes higher than that of a pressure oil pipe 44 for moving an auxiliary valve downward, and the oil passage of an auxiliary valve 38 is changed over. The enclosed side pressure oil is restricted to the extent that the enclosed side chamber 34 is not larger in negative pressure than a controlling device. Accordingly, the increase of pressure is prevented in the open side chamber 26 and a cylinder 20 is prevented from breakage.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7431080A JPS571882A (en) | 1980-06-04 | 1980-06-04 | Control of valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7431080A JPS571882A (en) | 1980-06-04 | 1980-06-04 | Control of valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS571882A true JPS571882A (en) | 1982-01-07 |
Family
ID=13543419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7431080A Pending JPS571882A (en) | 1980-06-04 | 1980-06-04 | Control of valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS571882A (en) |
-
1980
- 1980-06-04 JP JP7431080A patent/JPS571882A/en active Pending
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