FIELD: electricity.
SUBSTANCE: invention relates to the wind power engineering. Wind wheel comprises hub and blades. Blades are made in the form of plate, in which two longitudinal slots are made at distance not less than blade width to external edges of windwheel. In the zone of outer edges of the wind wheel, there are two transverse slots, starting from the outer ends of the longitudinal slots and having a length of not less than one third of the width of the blade. Outer edges of plate are made in Z-shape, while inner edges of blades are secured on hub. Blades are made from plate by forming slots.
EFFECT: invention is aimed at increasing stiffness.
1 cl, 5 dwg
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|
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