Windmill with direction-controlled feathering

Details Windmill with direction-controlled feathering Windmill with direction-controlled feathering

1982-12-27

1984-10-02

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With means positioning fluid current driven impeller...

Offset relative to flow direction

416 12, 416 17, 416 31, F03D 704

Patent

active

044745311

ABSTRACT:
A windmill employs a separate wind vane pivotably mounted on the chassis of the windmill. An internal sensor detects the relative angle between the wind vane and the windmill and activates the pitch-control mechanism of the windmill to feather the windmill blades whenever the angle exceeds a predetermined maximum.

REFERENCES:
patent: 2360791 (1944-10-01), Putnam
patent: 4084921 (1978-04-01), Norz
patent: 4160170 (1979-07-01), Harner et al.
patent: 4186313 (1980-01-01), Wurtz
patent: 4201514 (1980-05-01), Huetter
patent: 4297076 (1981-10-01), Donham et al.
patent: 4339666 (1982-07-01), Patrick et al.

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