FIELD: mechanical engineering; turbines. SUBSTANCE: proposed turbine of gas-turbine engine includes disk with fitted-on deflector with hub and plate. Deflector is mounted on disk by means of bolts driven through axial holes in hub. Axial slots open from inner side of hub are made between bolts. Outer wall of slot is located on radius greater than that on which holes are located. Ratio of diameter of hole to radial distance from axis of hole to outer wall of slot is 0.7-1.5. EFFECT: improved reliability and repairability of turbine rotor, reduced hydraulic losses of cooling air. 4 dwg
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