Patent ID: 8334610
Filing Date: 2012-12-18
Classification: F01D,F03D,F05B,F05D,Y02E

Abstract:
1. An apparatus for controlling an orientation of wind turbine blades, comprising: a turbine blade; a turbine blade bearing attached with said turbine blade, said turbine blade bearing being capable of rotating about a longitudinal axis of the turbine blade, thus being capable of changing a pitch angle of said turbine blade; a spider capable of a substantially perpendicular movement with respect to a plane of rotation of the wind turbine blades; moving means for moving the spider in response to first and second control signals; and a linkage arm connecting said spider with said turbine blade bearing, wherein the movement of said spider causes said linkage arm to rotate said turbine blade bearing, thus changing the pitch angle of said turbine blade; and a controller configured to: