Prime-mover dynamo plants – Tide and wave motors
Patent
1981-01-08
1982-04-27
Truhe, J. V.
Prime-mover dynamo plants
Tide and wave motors
290 42, 415 7, 60496, F03B 1310, H02P 904
Patent
active
043272967
ABSTRACT:
A dome-shaped atoll structure (12) having a central aperture at its apex is secured to a station-keeping structure (11, or 40, or 52) positioned on the ocean bottom. The atoll structure (12) is moveable through a range of vertical positions relative to the ocean bottom. Sea waves impinging on the atoll structure (12) are refracted as they crest and break, thereby producing spiralling pulses of water that converge toward the central aperture. The central aperture provides entry into a vertical standpipe (14) for the pulses of water, which impart angular momentum to water already present in the standpipe (14). A turbine (31) attached to a shaft (28) in the standpipe (14) converts the rotational energy of the water in the standpipe (14) to rotational energy of the shaft (28), which is coupled to an electrical generator (27). The electric power output of the generator (27) is measured for various vertical positions through which the atoll member (12) is moved, so that a position of optimum power output can be determined for any given combination of sea state and/or tidal conditions.
REFERENCES:
patent: 4137005 (1979-01-01), Comstock
patent: 4152895 (1979-05-01), Wirt
Lockheed Missiles & Space Company Inc.
Morrissey John J.
Truhe J. V.
Wade Shelley
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