WINDMILL ELECTRIC GENERATING PLANT Russian patent published in 1999 - IPC

FIELD: wind power engineering. SUBSTANCE: guide vanes of plant are thin- walled stiffness fins fixed on inner surface of contraction between its inlet and turbine; they are twisted over helical line in direction of turbine rotation; overhanging from ends of fins in gap between contraction neck and generator barrel are flexible plates with definite swirling angle provided at plate ends. EFFECT: simplified design, reduced mass, improved service life, enlarged speed range of wind. 3 cl, 5 dwg