Pumps – Motor driven – Tide or wave motor
Patent
1992-10-30
1995-04-11
Bertsch, Richard A.
Pumps
Motor driven
Tide or wave motor
417332, 60502, 60497, F04B 3502
Patent
active
054052505
ABSTRACT:
An apparatus and method for converting the motion of waves on a body of fluid into useable energy. The apparatus includes a floating or fixed rotatable support structure, a lever arm(s) pivotally supported from the support structure, and a wave follower fixed to one end of the lever arm(s) and positioned on the body of fluid. The lever arm is connected to an energy transfer device such as a piston rod which drives a load in response to the action of waves on the wave follower. The wave follower is designed such that the upper portion is constructed of a buoyant substance and the lower portion constructed in the form of a hollow chamber, open at the bottom, with the seaward face being angled so as to harness the energy of the lateral force of the wave. The open bottom of the wave follower allows the chamber to fill with fluid generally on the rise of a wave. When the fluid level drops, a suction is created in the chamber by the closing of a valve located in the upper portion. This action together with surface adhesion restricts fluid from flowing out of the chamber thus causing the wave follower to be pulled down by the weight of the fluid in the chamber. As the wave rises the buoyant upper portion causes the wave follower to rise. Extending seaward, vertical and inclined funnelling panels will funnel the wave inward and upward toward the wave follower thus amplifying the wave height.
REFERENCES:
patent: 1754025 (1930-04-01), Lawrence
patent: 4139984 (1979-02-01), Moody et al.
patent: 4172689 (1979-10-01), Thorsheim
patent: 4291234 (1981-09-01), Clark
patent: 4560884 (1985-12-01), Whittecar
patent: 4719754 (1988-01-01), Nishikawa
Vowles Alan
Vowles Bruce
Vowles Gerald J.
Bertsch Richard A.
Freay Charles G.
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