Wave powered electrical generating system

F - Mech Eng,Light,Heat,Weapons – 03 – B

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138/1

F03B 13/12 (2006.01) F03B 13/18 (2006.01)

Patent

CA 1172940

ABSTRACT Disclosed is a power generating system which derives power from the action of water waves. The system comprises a main support body mounted above a water surface subject to wave action on leg members secured to the bottom beneath the water surface. The support body has a central output shaft coupled to drive at least one output device. A plurality of drive shafts are coupled to apply torque to the output shaft in one direction only, the drive shafts being driven by hydraulic turbines, each of which are supplied with fluid under pressure by reciprocating pumps having pistons connected to and driven by floats which are movable up and down in response to waves moving beneath the support body. Ramps are provided beneath the water surface and surrounding the floats to increase the height of waves moving past the floats. The system produces a substantially constant turning action and can be made sufficiently large to derive energy from more than one wave at a time. With a large scale system, high power output is possible and by arranging the floats in a circular pattern, wave direction is unimportant. The output device may be an electrical generator or compressor, for example.

386119

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