FIELD: turbine units of power stations and turbine engines used for driving transport facilities. SUBSTANCE: rotor is provided with curvilinear profile working passage. Inlet admitting working medium to passage is located over periphery of rotor. Sense of rotation of rotor coincides with sense of rotation of working medium in working passage. Inner surface of working passage is provided with profile spiral cuts across direction of motion of working medium. Cuts may be made over part of surface. EFFECT: enhanced efficiency of turbine units. 2 cl, 11 dwg
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