Apparatus for extracting energy from winds at significant height

Details Apparatus for extracting energy from winds at significant height Apparatus for extracting energy from winds at significant height

1976-03-30

1978-02-28

Kelmachter, Barry L.

Aeronautics and astronautics

Kites

290 55, B64C 3106, F03D 902

Patent

active

040761908

ABSTRACT:
A buoyant sail or wing tethered to a line an appreciable distance above the surface where the winds are at higher speed than at ground level is provided with wind velocity gradient sensing members to guide movement of the buoyant sail to the elevation of greatest wind velocity, the other end of the line is attached to an electric generator. A series of sails are utilized with one being retracted while at least one other sail is positioned to catch the wind away from the generator. The wings may have dividers to increase the amount of flow disruption of the wind and increase the drag coefficient and hence the amount of energy extracted, and a pulley system may be utilized in lieu of a single pass tether line.

REFERENCES:
patent: 1609569 (1926-12-01), Nakata
patent: 2486158 (1949-10-01), Haas
patent: 2520704 (1950-08-01), Wisney
patent: 3131894 (1964-05-01), Jalbert
patent: 3228635 (1966-01-01), Hughes et al.
patent: 3393885 (1968-07-01), Neumark
patent: 3924827 (1975-12-01), Lois
patent: 3987987 (1976-10-01), Payne et al.

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