Wind powered turbine

Details Wind powered turbine Wind powered turbine

1981-10-06

1983-12-20

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Sustained ancillary movement of rotary working member

Responsive to gravity or working fluid force

416119, 416132B, F03D 706

Patent

active

044214588

ABSTRACT:
A wind powered turbine of the vertical axis type having rotor blades (3) carried on a rotor arm (2), in which the blades can be reefed to reduce torque on the turbine. The blades have two portions (6, 7) pivotable with respect to one another by the reefing means so as to move from a position parallel to the rotation axis to a position at which they form an angle about a plane perpendicular to the rotation axis.

REFERENCES:
patent: 1443912 (1923-01-01), Dominguez
patent: 3918839 (1975-11-01), Blackwell et al.
patent: 4087202 (1978-05-01), Musgrove
patent: 4204805 (1980-05-01), Bolie
patent: 4274809 (1981-06-01), Delgado et al.
patent: 4325674 (1982-04-01), Ljungstrom
patent: 4334823 (1982-06-01), Sharp

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