TURBINE ROTOR OF AN EXHAUST-GAS TURBOCHARGER

摘要

A turbine rotor of an exhaust-gas turbocharger of an internal combustion engine is provided, having at least one rotor disk (2, 3) configured as a turbine wheel and/or a compressor wheel, and a shaft (4), which is made of different materials. The hub (7) of the rotor disk (2, 3) is durably connected to the shaft (4) by way of a screw assembly (5, 6). An outer screw thread (9) of an axially protruding hub appendage (8) of the rotor disk (2, 3) for receiving a shaft nut (10) connected to the shaft (4) is provided therefor. In a final position, the shaft nut (10) is centered on a cone (12) of the hub appendage (8).

主权项

1. A turbine rotor of an exhaust gas turbocharger of an internal combustion engine, said turbine rotor comprises at least one rotor disk formed as a turbine wheel or as a compressor wheel and a shaft, said at least one rotor disk and said shaft are made from different materials, the rotor disk including a hub that is permanently connected to the shaft, the shaft is combined with the rotor disk by a screw assembly, said rotor disk including an external thread of on an axially projecting hub appendage that engages a shaft nut connected to the shaft and in an end position, the shaft nut is centered on a cone of the hub appendage.