Wind turbine blade

Details Wind turbine blade Wind turbine blade

2006-10-11

2009-10-27

Nguyen, Ninh H (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Apertured or permeable

C416S232000

Reexamination Certificate

active

07607894

ABSTRACT:
A wind turbine blade includes a drain comprising at least one bore formed on the surface of the blade and communicating with the interior of the blade, the bore being located at the root area. The bore is preferably from 8 mm to 15 mm wide. In blades having an internal strengthening structural member creating an enclosure, there is a bore on either side of the enclosure member. The bore is within 5 cm from the enclosure member.

REFERENCES:
patent: 7040863 (2006-05-01), Guimbal
patent: 7150817 (2006-12-01), Cho
patent: 2004/0028528 (2004-02-01), Flemming
patent: 10300284 (2004-07-01), None
patent: 2005105916 (2005-04-01), None
patent: WO 2004029448 (2004-04-01), None

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