Wind turbine blades with improved bond line and associated...

Details Wind turbine blades with improved bond line and associated... Wind turbine blades with improved bond line and associated...

2010-12-13

2011-11-01

Edgar, Richard (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Hollow

Reexamination Certificate

active

08047799

ABSTRACT:
A wind turbine blade includes an upper shell member and a lower shell member with an internal cavity therebetween. The shell members are joined at leading and trailing edges of the blade with a bond paste along a bond line having a designed width. A sleeve is disposed within the internal cavity between the upper and lower shell members along at least one of the leading or trailing edges, with the bond paste contained within the sleeve. The sleeve has a closed end that is impermeable to the bond paste and opposite sides that are permeable to air and permeable to the bond paste. The bond past adheres to the upper and lower shell members through the sleeve sides and the closed end of the sleeve defines the design width of the bond line in the internal cavity.

REFERENCES:
patent: 6800956 (2004-10-01), Bartlett
patent: 2007/0036659 (2007-02-01), Hibbard
patent: 2008/0075603 (2008-03-01), Van Breugel et al.
patent: 2009/0226702 (2009-09-01), Madsen et al.
patent: 2010/0247325 (2010-09-01), Stewart
patent: 2011/0142663 (2011-06-01), Gill

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