Wind powered turbine and airfoil construction

Details Wind powered turbine and airfoil construction Wind powered turbine and airfoil construction

1977-07-20

1978-12-19

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Cupped reaction surface normal to rotation plane

Torque converters

416132B, 416227A, F03D 306

Patent

active

041303806

ABSTRACT:
Airfoil blade construction utilizing a spar assembly consisting of a primary and secondary spar interconnected by a web. A tower supports a rotor structure with outwardly curved airfoil blades carried at the outer ends of rotor arm members. Aerodynamic blade sections are formed with irregular, transversely extending openings to permit sliding disposition onto the blade spar assembly. The aerodynamic sections are joined by a suitable bonding agent. A suitable exterior is applied to the joined aerodynamic sections to reinforce the airfoil construction as well as to protect same from the elements. Fittings on the spar assembly enable attachment of the airfoil to a supporting structure.

REFERENCES:
patent: 2872987 (1959-02-01), Gahagan
patent: 3150850 (1964-09-01), Barish
patent: 3400904 (1968-09-01), Bede
patent: 3597108 (1971-08-01), Mercer et al.
patent: 3637168 (1972-01-01), Ryan et al.
patent: 3647317 (1972-03-01), Furlong et al.
patent: 3918839 (1975-11-01), Blackwell et al.
patent: 4050246 (1977-09-01), Bourquardez

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