Wind powering of turbine having variable pitch vanes

Details Wind powering of turbine having variable pitch vanes Wind powering of turbine having variable pitch vanes

1978-04-11

1983-07-12

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With means positioning fluid current driven impeller...

Feathering cycle related to flow direction

416108, 416119, 416132B, F03D 300

Patent

active

043927807

ABSTRACT:
A vertical rotatable shaft is fitted with sets of radial arms extending from it to which are connected the leading edges of vanes rotatable about that member as axis. The vanes have sheets of flexbile material so that they may act like sails under pressure of the wind. A cam track, machined in a horizontal surface of a planar member just adjacent and outside the path of the vanes, guides the trailing edges of the vanes so that as the shaft rotates, the vanes are oriented about their axes to reach, run and tack before the wind. The member having the surface defining the cam track is attached to a tail assembly that orients the cam track to the wind direction. The inner assembly, which is pinned to the shaft makes a power rotor. The outer assembly which is free to rotate independently of the shaft is a cam cage.

REFERENCES:
patent: 61530 (1867-01-01), Fowler
patent: 224467 (1880-02-01), Nevers
patent: 410361 (1889-09-01), Harbaugh
patent: 846532 (1907-03-01), Viskochil
patent: 1126069 (1915-01-01), Palmer
patent: 1139103 (1915-05-01), Clade
patent: 1516668 (1924-11-01), Burch
patent: 2171732 (1939-09-01), Michaelson et al.
patent: 2319286 (1943-05-01), Andresen

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