Power plants – Pressure fluid source and motor – Utilizing natural energy or having a geographic feature
Patent
1979-07-09
1980-09-30
Ostrager, Allen M.
Power plants
Pressure fluid source and motor
Utilizing natural energy or having a geographic feature
415 6, F03B 1312
Patent
active
042247934
ABSTRACT:
A stream-powered turbine has an improved vane construction which insures that the flow pressure of the stream will be applied to the entire trailing surface of the vane. Each vane has a valve opening therethrough, and a flap valve pivotally mounted on the vane and selectively operable to close the valve opening. The improvement includes a dam-like shield at the outer end portion of the vane. This shield is provided with one or more control openings aligned with the flap valve. As the vane approaches the standing wave ahead of the turbine, water passes through the control openings to close the aligned flap valves, thereby insuring that the pressure of the flow will be applied to the entire trailing surface of the vane.
REFERENCES:
patent: 3965679 (1976-06-01), Paradiso
patent: 4095422 (1978-06-01), Kurake
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