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US 2012/0269629 A1Published application
Vertical axis wind turbine
AssigneeAF Energy Corporation
InventorSamuel Thomas Kelly
Life of this patent
Estimating the term…
Abstract
A vertical axis wind turbine having a plurality of upright airfoils pivotally engaged. A continuous adjustment of the angle of attack of the airfoils to oncoming wind is provided by rotation of a control plate connected to the vanes which are mounted upon a rotating drive plate. A vane can be employed to rotate the control plate to affect the continuous adjustment of the airfoils.
Claims16
A vertical axis wind turbine, comprising:
- a base plate disposed on a support surface and rotatable about a first axis;
- a drive plate rotatable about said first axis, said drive plate supporting a plurality of substantially upright vanes in a pivotal engagement and configured to act as airfoils;
- a drive shaft engaged to said drive plate, said drive shaft rotatable about said first axis;
- a base plate rotatable about said first axis;
- a control plate;
- means for rotatable engagement of said control plate upon said base plate;
- said control plate rotatable about a second axis substantially parallel and spaced apart from said first axis;
- means to synchronize rotation of said control plate around said second axis with concurrent rotations of said drive plate around said first axis;
- means for engagement of each respective vane to said control plate;
- means for rotatory positioning of said base plate about said first axis relative to wind direction;
- and
- rotation of said control plate about said second axis in combination with said rotary positioning during concurrent rotation with said drive plate, providing means to pivot each said vanes and thereby communicate a continuous pitch adjustment to said vanes.
9 more elements
Dependencies are inferred from the claim text.