| 主权项 |
1. An exhaust turbocharger comprising a turbine having a turbine wheel and a compressor having a compressor wheel, wherein the turbine wheel and the compressor wheel are connected to one another by means of a shaft rotatably mounted in a bearing housing,
means for axially securing the shaft and the turbine wheel connected thereto is provided between the compressor wheel and the turbine wheel, wherein this means for axial securing limits an axial movement of the shaft and of the turbine wheel connected thereto in the direction of the turbine in the event of the compressor wheel bursting, wherein the means for axially securing the shaft and the turbine wheel connected thereto comprises a component which is mounted on the shaft and which is provided with an internal thread, wherein the means for axially securing the shaft and the turbine wheel connected thereto furthermore comprises an external thread formed on the shaft, wherein the means for axially securing the shaft and the turbine wheel connected thereto furthermore comprises an axial stop on the bearing housing, wherein the internal thread of the component enters into a screwed joint with the external thread formed on the shaft when the component is mounted on the shaft, wherein the axial stop on the bearing housing limits the axial movement of the component and thus the axial movement of the shaft in the direction of the turbine in the event of the compressor wheel bursting, wherein the external thread formed on the shaft has an undercut at the turbine end of the external thread, and in that the internal thread of the component is situated in the undercut at the turbine end of the external thread in the mounted state. |
