Prime-mover dynamo plants – Tide and wave motors
Patent
1983-08-18
1985-10-01
Shoop, Jr., William M.
Prime-mover dynamo plants
Tide and wave motors
290 42, 60496, F03B 1312
Patent
active
045448493
ABSTRACT:
The present invention relates to a method and apparatus for tidal electric power generation using the buoyancy energy of the tide. The present invention includes a buoyant container having a balancing buoyant room and a flood gate, a power transmission apparatus having a converting apparatus, and a four-way valve. The buoyancy force of the buoyant container is decreased during the upward movement of the container while the kinetic energy decreases during the downward movement of said container. With control of the four-way valve, the decreasing buoyancy force is partially compensated for by the pumping of water from the buoyant container and the kinetic energy is reinforced by filling the buoyant container with water. The converting apparatus comprises two conic helical gears. By using the conic helical gear, the buoyancy force and the kinetic energy are constantly transmitted into the pump. Particularly, this invention contains a brake which holds the buoyant container at a height where the weight of the buoyant container balances with the buoyancy force. At the ebb and flow of the tide, the brake is released and instantaneous force is produced. By virtue of the present invention, the greater energy can be obtained with little energy loss compared with the conventional manner.
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patent: 925581 (1909-06-01), Kendall
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patent: 4185464 (1980-01-01), Rainey
patent: 4208878 (1980-06-01), Rainey
patent: 4249085 (1981-02-01), Kertzman
Duncanson Jr. W. E.
Shoop Jr. William M.
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