Rotary kinetic fluid motors or pumps – Method of operation
Patent
1983-02-24
1985-04-30
Yuen, Henry C.
Rotary kinetic fluid motors or pumps
Method of operation
415168, F03B 1504
Patent
active
045141380
ABSTRACT:
An apparatus for use in a method for discharging leakage water from guide vanes of a reversible hydraulic machine when the guide vanes are fully closed under the water surface of a runner being depressed comprises a runner connected to a main shaft of the hydraulic machine and covered with upper and lower covers, a plurality of guide vanes arranged at a peripheral portion of the runner, first and second discharge pipes provided with first and second discharge valves and arranged so as to connect a discharge conduit and a runner chamber formed between the runner and one of the covers, and a device for operating said discharge valves. A leakage water discharge method is carried out in accordance with such control mode as that the first and second discharge valves are both opened when the runner rotates in a power generation direction and one of the discharge valves is opened when said runner rotates in a pumping-up direction.
REFERENCES:
patent: 3238534 (1966-03-01), Hartland
patent: 3890059 (1975-06-01), Takase
patent: 3985464 (1976-10-01), Hachiya et al.
patent: 4158525 (1979-06-01), Kawase et al.
Ichikawa Kentaro
Inagaki Taizo
Kawase Yozo
Kido Hitoshi
Kwon John
Tokyo Shibaura Denki Kabushiki Kaisha
Yuen Henry C.
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