公开(公告)号：US11181093B2

公开(公告)日：2021-11-23

申请号：US15300316

申请日：2014-07-30

申请人： Siemens Gamesa Renewable Energy A/S

发明人： Michael J. Asheim ,  Kristoffer Ahrens Dickow ,  Peder Bay Enevoldsen ,  Alex Loeven ,  Valerio Lorenzoni ,  Stefan Oerlemans ,  Anders Smaerup Olsen ,  Bodo Richert ,  Manjinder J. Singh ,  Sigmund Wenningsted Torgard

IPC分类号： F03D1/06

摘要： A rotor blade for a wind turbine is provided. The rotor blade includes a pressure side, a suction side, a leading edge section with a leading edge, and a trailing edge section with a trailing edge. An airflow flows along the surface of the rotor blade from the leading edge section to the trailing edge section and builds up a boundary layer in close proximity to the surface of the rotor blade. The rotor blade includes a noise reduction device for reducing noise which is generated by interaction of the airflow and the rotor blade. The noise reduction device is located within the boundary layer of the rotor blade. The noise reduction device includes a cover and connection device for connecting the cover to the surface of the rotor blade. The cover spans at least over a part of the surface of the rotor blade.