Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ashish Singh0
Date of Patent
April 11, 2017
0Patent Application Number
143601250
Date Filed
November 15, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A wind turbine blade is described having noise reduction features. The blade has a plurality of projecting serrations provided at the blade trailing edge to reduce the scattering noise produced during operation of the blade, wherein the serrations have a plurality of through-going apertures defined in the serration body. The apertures act to provide a pressure equalization effect at the serrations between the suction and pressure sides. This pressure equalization provides for improved noise reduction performance, as well as a reduction in mechanical stresses and strains which may be experienced by the serrations, increasing serration lifetime.
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