Device for extracting energy from waves

Details Device for extracting energy from waves Device for extracting energy from waves

1979-02-28

1980-06-24

Geoghegan, Edgar W.

Power plants

Motor having a buoyant working member

60504, 290 53, 417330, F03B 1312

Patent

active

042088771

ABSTRACT:
A device for extracting energy from sea waves by the motion of a submerged cylinder held normal to the direction of motion of the waves by tie members at each end of the cylinder. The tie members at their other respective ends are moored to the sea bed. Changes in the load on the tie members are arranged to turn in one direction a drum drivably connected to a vane pump. A spring, or a counterweight acting on a cam-shaped pulley, is arranged to apply a biasing load to the drum in the other direction so as to produce an oscillatory movement of the drum from changes in load on the tie members and drive the pump. A hydraulic motor connected to an electric generator is driven by the pump.
The drum may be situated at the moorings on the sea bed, or at the cylinder.

REFERENCES:
patent: 1318469 (1919-10-01), Wilkinson
Paper entitled, "A Theory for Wave-Power Absorption by Oscillating Bodies", by D. V. Evans, Publ. in "Journal of Fluid Mechanics", Part 1, pp. 1-25.

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