Dynamic wave energy extraction system

Details Dynamic wave energy extraction system Dynamic wave energy extraction system

1976-10-26

1978-04-04

Ostrager, Allen M.

Power plants

Motor having a buoyant working member

Working member actuated by the rise and fall of a surface of...

114210, 417328, 417337, E02B 908

Patent

active

040819620

ABSTRACT:
A dynamic wave energy extraction system utilizing a suspended weight to extract energy from ocean waves. A spring-biased floating sheave is disposed to move with respect to a pair of guide posts attached to a ship. A cable having a submerged weight attached to one end thereof passes across the sheave and attaches at the other end to the ship. The spring, cable and weight are tuned to match the predominant heave frequency of the ship, thereby exciting the cable system producing maximum dynamic tension variations in the cable. The tension variations force the floating sheaves to move along the guide posts in an oscillatory or reciprocating manner, thus extracting the maximum amount of energy from the waves.

REFERENCES:
patent: 3696251 (1972-10-01), Last et al.

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