WINDMILL Russian patent published in 1998 - IPC

FIELD: wind-electric power units for high-power windmill electric generating plants. SUBSTANCE: windmill has ring-shaped bearing structure resting on supporting surface with its loose end carrying blades. Each blade is equipped with separate blade operating mechanism incorporating wind vane and chain transmission having transmission ratio 1:2 which makes it possible to set angle of turn of blade considering actual wind direction at location point of blade. EFFECT: enlarged operating range of each blade concerning angle of turn of bearing structure. 3 dwg