Power plants – Motor having a buoyant working member – Working member actuated by the rise and fall of a surface of...
Patent
1989-06-20
1990-04-10
Ostrager, Allen M.
Power plants
Motor having a buoyant working member
Working member actuated by the rise and fall of a surface of...
60497, F03B 1312
Patent
active
049149156
ABSTRACT:
A turbine device for harvesting wave energy has a hollow vertical tube having an open top and a closed bottom. The vertical tube is located in a body of water with its bottom located beneath the surface of the body of water and its top located above the surface of the water. A hollow turbine tube having an open top and an open bottom is sized and shaped with respect to the vertical tube such that a variable portion of the turbine tube including its open bottom is located in and is movable within the vertical tube. A float for raising and lowering the turbine tube with respect to the vertical tube in response to wave motion is attached near the top of the turbine tube. Raising and lowering of the float in response to wave motion raises and lowers the turbine tube in the vertical tube. A liquid is contained in and is displaceable between the vertical tube and the lower portion of the turbine tube. A turbine which can be rotated in response to relative movement with respect to a fluid is located in and connected to the turbine tube in a position below the level of the liquid in the turbine tube. The turbine is moved through the liquid to rotate the turbine in response to movement of the turbine tube with respect to the vertical tube.
REFERENCES:
patent: 4359868 (1982-11-01), Slonim
patent: 4413956 (1983-11-01), Berg
Boswell Herb
Ostrager Allen M.
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