Blades and systems with forward blowing slots

Patent · 02 March 2021

OSTI ID:1805573

Zuteck, Michael D.; Zalusky, Leigh; Lees, Paul

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 0° and 70° with respect to an axis oriented from a centerline of the blade toward the leading edge.

• Research Organization: Kohana Technologies, Inc., Richmond, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AR0000022
• Assignee: Kohana Technologies Inc. (Richmond, CA)
• Patent Number(s): 10,934,995
• Application Number: 16/037,466
• OSTI ID: 1805573
• Country of Publication: United States
• Language: English