Cushioned dual-action constant speed wave power generator

Details Cushioned dual-action constant speed wave power generator Cushioned dual-action constant speed wave power generator

1993-06-23

1995-06-13

Pellinen, A. D.

Prime-mover dynamo plants

Tide and wave motors

60503, 60506, 60507, 290 42, F03B 1312, F03B 1314

Patent

active

054245826

ABSTRACT:
A wave power generator is substantially continuously driven by a pair of floats connected to a common drive shaft and positioned side by side along a line perpendicular to the direction of wave motion, one float being specifically designed to efficiently drive the shaft during the rising portion of a wave, the other to efficiently drive the shaft during the falling portion of a wave. The generator's flywheel is maintained at a constant speed by an automatic load control throughout a range of wave patterns sufficient to encompass over 70% of the statistically expected wave patterns at the generator location. An inclined-bottom float is used for the rising wave drive, and a bottom-weighted float is disclosed for the falling wave drive. The floats may be disposed one above the other and may have mating conical surfaces for cushioning occasional contact between the floats. In accordance with another feature of the invention, the efficiency of the inventive apparatus is increased by holding the descending float against movement until it is substantially out of the water, and then releasing it for a substantially free fall.

REFERENCES:
patent: 366768 (1887-07-01), Elias
patent: 3668412 (1972-06-01), Vrana et al.
patent: 4175885 (1979-03-01), Solell
patent: 4379235 (1983-04-01), Trepl, II
patent: 4469955 (1984-09-01), Trepl, II
patent: 4599858 (1986-07-01), La Stolla et al.
patent: 4718231 (1988-01-01), Vides
Salter, S. H., WavePower, Nature Magazine, Jun. 21, 1974, pp. 721-724.

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