SWIRL BLADE Russian patent published in 2003 - IPC

FIELD: wind-power engineering. SUBSTANCE: invention can be used at designing rotor screws of wind motors. According to invention in proposed blade made in form of guide one-side widening from root part is prevailing. Blading contains base swirl forming space and at least one orientating swirl-forming space in inner part of blade. Outer surfaces of guide blading and base swirl forming space are smoothly blending parts of common cone-shaped surface. Invention increases intensity of effect of redistribution of full energy of wind flow owing to provision of conditions for formation of rotating swirl flows in inner space of blade. EFFECT: improved efficiency. 2 cl, 2 dwg