Directionally stabilized wind turbine

Details Directionally stabilized wind turbine Directionally stabilized wind turbine

1981-02-02

1982-05-11

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With means positioning fluid current driven impeller...

Offset relative to flow direction

416236A, F03D 704

Patent

active

043291155

ABSTRACT:
A downwind rotor wind turbine having a rotor with a horizontal axis carried for operation on the downwind end of a pod or nacelle pivotally mounted on a vertical pivot located upwind of the rotor on the top of an elevated structure. Each blade is provided at its tip with a tip plate. The tip plates have a surface area large enough to provide an aerodynamic force on the rotor when the wind shifts away from the rotational axis of the rotor such that a restoring moment is furnished about the turbine pivot to turn the turbine automatically back into the wind.

REFERENCES:
patent: 1633842 (1927-06-01), Bishop
patent: 1820529 (1931-08-01), Darrieus
patent: 2426742 (1947-09-01), Pawlowski
patent: 4093402 (1978-06-01), Van Holten

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