Wind turbine apparatus

Details Wind turbine apparatus Wind turbine apparatus

1985-09-23

1986-10-28

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Sectional, staged or nonrigid working member

416 23, 416119, 416240, 416DIG5, F03D 306

Patent

active

046195858

ABSTRACT:
Wind turbine apparatus includes a plurality of air foil sail elements secured to a circular frame rotatable in response to wind reacting with the sail elements. The sail elements include deformable outer skin portions, one of which is flattened against an interior form in response to wind forces, and the other of which extends convexly away from the interior form. The deformation changes the camber of the sail element.

REFERENCES:
patent: 1266472 (1918-05-01), Howe
patent: 2126813 (1938-08-01), Reid
patent: 2319286 (1943-05-01), Andresen
patent: 3292710 (1966-12-01), Grut
patent: 3614260 (1971-10-01), Ellinger
patent: 4052134 (1977-10-01), Rumsey
patent: 4341176 (1982-07-01), Orrison
patent: 4430044 (1984-02-01), Liljegren
patent: 4530642 (1985-07-01), Yang
patent: 4545729 (1985-10-01), Storm

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