US 12,173,688 B1
Optimized airfoil with cylindrical leading edge and stinger trailing edge
Hamid R. Rahai, Long Beach, CA (US); and Leovigildo Torres, Long Beach, CA (US)
Filed by Hamid R. Rahai, Long Beach, CA (US); and Leovigildo Torres, Long Beach, CA (US)
Filed on Apr. 8, 2024, as Appl. No. 18/629,875.
Int. Cl. F03D 3/06 (2006.01); F03D 3/00 (2006.01)
CPC F03D 3/009 (2023.08) [F03D 3/061 (2013.01); F05B 2240/213 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A vertical axis wind turbine, comprising:
a plurality of vanes arranged on a platform, each vane defined by:
a chord having a length L;
a half-cylindrical leading edge;
a first inflection point between the leading edge and one half the chord length (L/2);
a second inflection point between the one half chord length and a trailing edge;
a third inflection point between the second inflection point and the trailing edge; and
wherein the trailing edge forms a deflection away from a linear extension of the third inflection point.