Actuation system for a wind turbine blade flap

Details Actuation system for a wind turbine blade flap Actuation system for a wind turbine blade flap

F - Mech Eng,Light,Heat,Weapons

03

D

F03D 1/06 (2006.01) F03D 3/06 (2006.01) F03D 11/00 (2006.01)

Patent

CA 2634427

A method of actuating a flap (9) in a wind turbine rotor blade (1) is provided wherein a fluid is used for reversibly expanding an actuating element (16, 17, 19) acting a movable part (13) of the flap by varying the fluid pressure in the actuating element (16, 17, 19). Further, a wind turbine rotor with a rotor blade (1) comprising a flap (9) and a flap actuating system, where the flap comprises a fixed part (12) that is fixed to the rotor blade (1) and a movable part (13) that is movable relative to the fixed part (12), is disclosed, in which the flap actuating system comprises an actuating element (16, 17, 19) with a reversible changeable volume located between the movable part (13) of the flap and the fixed part (12) of the flap, a fluid within the actuating element (16, 17, 19) the pressure of which is settable and a pressure setting device which is designed to press fluid into or release fluid from the element (16, 17, 19) as to change its volume.

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