Power plants – Motor having a buoyant working member – Working member actuated by the rise and fall of a surface of...
Patent
1973-10-03
1976-04-27
Ostrager, Allen M.
Power plants
Motor having a buoyant working member
Working member actuated by the rise and fall of a surface of...
417337, F03B 1312
Patent
active
039525171
ABSTRACT:
A buoyant ram motor comprising a hollow buoyant ram element movable within a housing into which liquid such as water is admitted in a manner applying a buoyant force to the ram and moving or lifting it up along the interior of the housing. After each power stroke, the liquid is removed from the housing to lower or return the ram to an initial or starting position for the next power stroke. The liquid for moving the ram can be obtained from natural water bodies. The force applied to the ram during each power stroke is augmented by providing a vacuum in the housing on and exposed to the surface of the ram opposite the surface to which the buoyant force is applied. During each return stroke, liquid is removed from beneath the ram in a manner preserving the vacuum over the ram. This is accomplished by an arrangement including a chamber communicating with the liquid below the ram and containing a weighted cylinder supported on a flexible container filled with compressed air. The reactive force of the container and weighted cylinder pressurizes the liquid to above one atmosphere, thereby forcing it out from under the ram and into the atmosphere. The movement of the ram does useful work such as reciprocating a piston in a cylinder to pump liquid. The motor can be used as a pump in a system wherein water is lifted or pumped to a relatively great height from where the water is dropped through a turbine to drive an electrical generator.
REFERENCES:
patent: 1058785 (1913-04-01), Nevers
patent: 1773189 (1930-08-01), Lecrenier
patent: 3485038 (1969-12-01), Martin et al.
Kramer Raymond F.
Ostrager Allen M.
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