| 摘要 |
<p>Conventional water wheels are rarely used to generate hydroelectric power due to the low efficiency caused by turbulence and splashing when water hits the blades, by excessive back pressure generated in housings which completely enclose the water wheels, and by leakage of hydraulic pressure. This invention relates to a water wheel housed in a flow-duct which encloses only the blades of the water wheel, and which directs the flow of water onto the blades, thereby minimizing splashing and turbulence. The flow duct is designed to discharge the water at a point where the water ceases to exert a downward rotational torque on the wheel. Novel seal means are provided around the periphery of the flow-duct so as to minimize leakage of hydraulic pressure.</p> |
