Vertical axis wind turbine

F - Mech Eng,Light,Heat,Weapons – 01 – D

Patent

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170/81

F01D 5/14 (2006.01) F03D 3/00 (2006.01) F03D 7/06 (2006.01)

Patent

CA 1315697

ABSTRACT OF THE DISCLOSURE A vertical axis wind turbine blade is provided herein. Such blade includes a blade body having a leading edge and trailing edge, the edges being generally parallel to each other. Each blade is substantially-straight and includes opposite, longi- tudinally-extending surfaces exposed to the wind, with each sur- face having a series of troughs formed equispaced and parallel to each other along substantially the entire blade length. Wind striking the blade surfaces, diverges and decelerates as it flows through each trough towards the trailing edge, thereby to effect transferring wind energy to the blades.

615896

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