FIELD: compressor engineering. SUBSTANCE: surface of chute 4 and back 5 of blades 3 in the region of inlet edge 6 have straight generatrix. Generatrix surfaces of chute 4 and back 5 are smoothly transformed into surfaces of at least second order in the region of outlet edge 7. Convexities of the generatrices face each other. EFFECT: improved design. 1 dwg
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