Control in wave energy conversion device employing a flexible wa

Details Control in wave energy conversion device employing a flexible wa Control in wave energy conversion device employing a flexible wa

1980-09-23

1983-03-01

Walton, George L.

Power plants

Pressure fluid source and motor

Utilizing natural energy or having a geographic feature

290 53, 405 76, 417330, E02B 908, F03B 1312

Patent

active

043751512

ABSTRACT:
Hydrostatic pressure of a passing wave crest causes collapse of flexible bags pumping air from the bags via a non-return valve into a high pressure air conduit 14a, 14b. The bags are re-inflated in the wave trough from a low pressure air conduit 13. One or more turbines 19, 21 are driven by air flow from the high to the low pressure air conduits. By controlling the restriction to air flow passing through the turbine(s) power extraction is optimized. By providing separately adjustable air flow circuits for the bow end and the stern end, differential control of the flow restriction in the two circuits provides control over pitching of the device.

REFERENCES:
patent: 3353787 (1967-11-01), Semo
patent: 3989951 (1976-11-01), Lesster et al.
patent: 4145882 (1979-03-01), Thorsheim
patent: 4164383 (1979-08-01), French

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