Blade for a Wind Turbine Rotor
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United States of America Patent
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N/A
Issued Date -
Nov 19, 2009
app pub date -
Dec 5, 2006
filing date -
Dec 5, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A blade (1) for a wind turbine rotor having a substantially horizontal rotor shaft, said rotor comprising a hub, comprises, seen in longitudinal direction along a longitudinal axis (10), a root area (2) closest to the hub, an airfoil area (4) furthest away from the hub and a transition area (3) between the root area (2) and the airfoil area (4). Seen in transverse direction, the blade (1) comprises a leading edge (5) and a trailing edge (6) as well as a chord plane (K) extending between the leading edge (5) and the trailing edge (6) of the blade (1). A surface zone with a plurality of indentations (7) and/or projections is provided in at least the root area (2), said indentations and/or projections being formed and dimensioned to improve the wind flow across the surface of the blade (1).
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