FIELD: gas turbine engines; steam turbines.
SUBSTANCE: invention relates to design of fans, axial compressors and gas or steam turbines. Disclosed is a compressor, fan or turbine blade having a lower edge and an upper edge, wherein the lower or upper edge is made with a convex profile curvature, according to invention at blind edge of blade there are blind holes perpendicular to chord or inclined towards flow.
EFFECT: invention is aimed at increasing the efficiency of the blade.
1 cl, 3 dwg
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