Fluid reaction surfaces (i.e. – impellers) – Oscillatory reaction motion
Reexamination Certificate
2011-08-02
2011-08-02
Lebentritt, Michael (Department: 2829)
Fluid reaction surfaces (i.e., impellers)
Oscillatory reaction motion
C416S119000, C416S145000, C416S22900R, C416S24100B, C416S500000
Reexamination Certificate
active
07988416
ABSTRACT:
A blade for a wind turbine generally comprises a shell body defined by first and second shells extending between a leading edge and a trailing edge, an inner spar supporting at least a portion of the shell body, and a damping element coupled to at least one of the shell body or inner spar. The damping element is configured to move relative to the shell body to dissipate vibrations of the blade, and has a greater degree of freedom in a flapwise direction between the first and second shells than in an edgewise direction between the leading and trailing edges.
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Lebentritt Michael
Vestas Wind Systems A/S
Wood Herron & Evans L.L.P.
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