Wind turbine blade

Details Wind turbine blade Wind turbine blade

2009-03-05

2011-12-27

Lebentritt, Michael (Department: 2829)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Coating, specific composition or characteristic

C416S232000, C416S24100B, C415S115000, C415S116000

Reexamination Certificate

active

08083491

ABSTRACT:
A wind turbine blade (11) having an aerodynamic profile with a leading edge (13), a trailing edge (15) and suction and pressure sides (17, 19) between the leading edge (13) and the trailing edge (15), wherein the pressure side (19) includes a modified zone (31) shaped for reducing the negative lift coefficient which is done whether attaching a device (33) such as a stall strip to the blade (11) or attaching or inserting into the blade (11) a deformable device and actuator means for providing the shape and size changes in it.

REFERENCES:
patent: 5988982 (1999-11-01), Clauer
patent: 6551064 (2003-04-01), Mannava et al.
patent: 6672838 (2004-01-01), Crall et al.
patent: 6719853 (2004-04-01), Buergel et al.
patent: 6752593 (2004-06-01), Clauer et al.
patent: 7229253 (2007-06-01), Broderick et al.
patent: 7575418 (2009-08-01), Gigliotti et al.
patent: 7761993 (2010-07-01), Mahler et al.
patent: 2009/0028718 (2009-01-01), Enevoldsen et al.

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