Method and apparatus for generating electric power by waves

Details Method and apparatus for generating electric power by waves Method and apparatus for generating electric power by waves

1983-04-14

1984-12-25

Truhe, J. V.

Prime-mover dynamo plants

Electric control

Tide and wave motors

290 43, 290 52, 290 53, 417330, 417332, 60497, 415 5, 91 5, F03B 1312

Patent

active

044906218

ABSTRACT:
At least one caisson which is part or all of a breakwater forms a water chamber therein whose closure is a pendulum having a natural period in rocking or oscillating the same as a period of stationary wave surges caused in the water chamber by rocking movement of the pendulum owing to wave force impinging against the pendulum. At least one double-acting piston and cylinder assembly is connected to the pendulum, so that when a piston of the assembly is reciprocatively moved by the pendulum, pressure difference between cylinder chambers on both sides of the piston of the assembly controls a change-over valve which in turn controls hydraulic pressure discharged from the cylinder chambers to be supplied to a plurality of hydraulic motors respectively having accumulators of a type wherein accumulated pressure and volume of the hydraulic liquid are proportional to each other, whereby driving a common generator alternately by the hydraulic motors.

REFERENCES:
patent: 692396 (1902-02-01), Wilcox
patent: 901117 (1908-10-01), McManus
patent: 988508 (1911-04-01), Reynolds
patent: 1018678 (1912-02-01), Nelson
patent: 1449426 (1923-03-01), Loveless et al.
patent: 1887316 (1932-11-01), Lockfaw
patent: 3515889 (1970-06-01), Kammerer
patent: 4098084 (1978-07-01), Cockerell
patent: 4115034 (1978-09-01), Smith
patent: 4204406 (1980-05-01), Hopfe
patent: 4210821 (1980-07-01), Cockerell
patent: 4400940 (1983-08-01), Watabe et al.

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