Wind turbine with yaw trimming

F - Mech Eng,Light,Heat,Weapons – 03 – D

Patent

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170/15

F03D 7/06 (2006.01) F03D 1/06 (2006.01)

Patent

CA 1155062

Abstract of the Disclosure The disclosure teaches a wind turbine. The wind turbine includes a rotatable hub and at least one airfoil blade mounted at a root portion thereof on the rotatable hub and pivotally movable about the root portion into and out of the wind in response to vertical wind velocity gradients acting on the blade. The wind turbine is characterized by the blade being connected to the hub in such manner that pivoting movement into and out of the wind by the blade adjusts blade pitch relative to the direction of the wind to a degree sufficient to counteract any tendency of the turbine to precess away from an optimum yaw heading thereby minimizing yaw imbalance of the hub due to the influence of the vertical wind velocity gradients on the blade.

376965

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