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Turbine blades and systems with forward blowing slots

United States Patent

September 15, 2015
View the Complete Patent at the US Patent & Trademark Office
A blade for use in a wind turbine comprises a pressure side and suction side meeting at a trailing edge and leading edge. The pressure side and suction side provide lift to the turbine blade upon the flow of air from the leading edge to the trailing edge and over the pressure side and suction side. The blade includes one or more openings at the suction side, in some cases between the leading edge and the trailing edge. The one or more openings are configured to provide a pressurized fluid towards the leading edge of the blade, in some cases at an angle between about and with respect to an axis oriented from a centerline of the blade toward the leading edge.
Zuteck; Michael D. (Clear Lake Shores, TX), Zalusky; Leigh (Vacaville, CA), Lees; Paul (San Francisco, CA)
Kohana Technologies Inc. (Richmond, CA)
13/ 400,014
February 17, 2012
STATEMENT AS TO FEDERALLY SPONSORED RESEARCH This invention was made with Government support under DE-AR0000022 awarded by the United States Department of Energy. The Government has certain rights in the invention.