FIELD: mechanical engineering. SUBSTANCE: proposed turbomachine has stator and rotor with disks, each provided with compressor and turbine blade rims. Turbomachine has also closed - type centrifugal compressor impeller with turbine blade rim on outer surface and internal toroidal groove mated with diffuser with curvilinear blades curved backwards in direction of rotor movement and arranged inside. Turbomachine has also drum with turbine and compressor blades on outer and inner surfaces, and disks one of which is secured on shaft of turbomachine. Other disk is mated with fixed trunnion by means of bearings. EFFECT: reduced overall dimensions of turbomachine. 6 cl, 4 dwg
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