Wind turbine rotor assembly and blade having acoustic flap

Details Wind turbine rotor assembly and blade having acoustic flap Wind turbine rotor assembly and blade having acoustic flap

2005-09-22

2008-12-02

Nguyen, Ninh H (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With means moving working fluid deflecting working member...

C416S14600A, C416S228000, C415S119000

Reexamination Certificate

active

07458777

ABSTRACT:
A wind turbine includes a rotor assembly having at least one blade with a blade body defining a leading edge and a trailing edge and adapted for movement in response to a wind flow over the body to produce electricity. A rigid acoustic flap extends outward from the trailing edge, and a distal end of the acoustic flap is substantially smooth and continuous. The flap reduces acoustic noise generated by the blade in use.

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