Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – Responsive to gravity or working fluid force
Patent
1976-06-21
1977-09-20
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Sustained ancillary movement of rotary working member
Responsive to gravity or working fluid force
416132B, F03D 306
Patent
active
040493628
ABSTRACT:
A wind-driven rotor for generating power has a central normally vertical column mounted in a base structure for rotation about the column axis. In the preferred form of the invention, a plate is secured to the top of the column perpendicular to the axis of rotation, and functions both as a aerodynamic end plate and as a bracket supporting a group of articulating airfoils. These are rotatable about a pivot connection to the end plate with freedom of movement within a limited sector of articulation providing driving and feathering airfoil positions. The airfoils are preferably triangular, with an apex downward, and pivotally connected to a member fixed with respect to the column at a position relatively close to the column axis, so that one side of the triangular configuration approaches parallelism with the column.
REFERENCES:
patent: 19383 (1858-02-01), Shaw
patent: 1021560 (1912-03-01), Swift
patent: 1171584 (1916-02-01), Blakely
patent: 1299151 (1919-04-01), Ebert
patent: 1417000 (1922-05-01), Vogt et al.
patent: 1644912 (1927-10-01), Burch
Morse Glenn B.
Powell Jr. Everette A.
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