| 摘要 |
Liquid in a closed tank is forced and displaced out the bottom thereof by compressed air and gravity. The liquid flows to a riser and to the top of a penstock where it falls freely to a turbine in an airtight housing. The fallen liquid is displaced by trapped air pressure into a second tank which is being evacuated of air. When the second tank is full of liquid, valves reverse the air pressure between the two tanks and the operation continues. The turbine may be used to directly power various types of machinery or to produce electricity by driving a generator.
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