Fluid-driven turbine with speed regulation

Details Fluid-driven turbine with speed regulation Fluid-driven turbine with speed regulation

1979-08-23

1982-02-23

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With means positioning fluid current driven impeller...

Offset relative to flow direction

416 41, 416132B, F03D 704

Patent

active

043166989

ABSTRACT:
A wind-driven turbine with a self-regulating pitch control system is disclosed. The turbine includes a wheel having a plurality of wings or blades that rotate about a longitudinal pivot axis through a pitch range. The blades are in coned or parallel relation to the axis of rotation of the wheel. Biasing means are provided for biasing the wings toward a starting pitch position. The center of gravity of each wing is spaced from the axis of rotation of the wheel and from the pivot axis of the wing toward its trailing edge. Centrifugal force acting on the wings causes them to move from a starting pitch orientation to a power pitch orientation as the speed of the turbine increases. A system is provided for selectively controlling the pitch of the wings, preferably from a location remote from the turbine.

REFERENCES:
patent: 1123465 (1915-01-01), Artibee
patent: 1250263 (1917-12-01), Yates
patent: 1633842 (1927-06-01), Bishop
patent: 2516576 (1950-07-01), Jacobs
patent: 2655604 (1953-10-01), Hutter
patent: 2832895 (1958-04-01), Hutter
patent: 4029434 (1977-06-01), Kenney
patent: 4084921 (1978-04-01), Norz
patent: 4183715 (1980-01-01), Ducker
patent: 4201514 (1980-05-01), Huetter

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