Wind rotor

Details Wind rotor Wind rotor

1984-05-21

1986-01-28

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Sustained ancillary movement of rotary working member

Responsive to gravity or working fluid force

416132B, F03D 706

Patent

active

045668540

ABSTRACT:
The wind rotor of the present invention includes a vertically disposed, rotatable shaft operatively connected to a conventional generator. A plurality of bent lever arms are uniformly radially attached to the shaft and extend outwardly therefrom. Each arm has a vertically disposed rectilinear airfoil blade connected to the outer end thereof such that the wind generates aerodynamic lifting forces on the blades to cause rotation of the wind rotor. The bent lever arm transmits a greater portion of the lifting forces to the central shaft for increased torque in the wind rotor.

REFERENCES:
patent: 692714 (1902-02-01), Sala et al.
patent: 1835018 (1931-12-01), Darrieus
patent: 3897170 (1975-07-01), Darvishian
patent: 3994621 (1976-11-01), Bogie
patent: 4015911 (1977-04-01), Darvishian
patent: 4245958 (1981-01-01), Ewers
patent: 4299537 (1981-11-01), Evans
patent: 4334823 (1982-06-01), Sharp
patent: 4368392 (1983-01-01), Drees
patent: 4410806 (1983-10-01), Brulle
patent: 4415312 (1983-11-01), Brenneman
patent: 4430044 (1984-02-01), Liljegren
patent: 4435124 (1984-03-01), Zheng
patent: 4452568 (1984-06-01), Andersson
Sandia Laboratories Report by B. F. Blackwell, "The Vertical-Axis Wind Turbine-How it Works".

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