Method for designing shaft-turbine wheel connection for exhaust turbocharger, involves casting hollow space in turbine wheel, and arranging hollow space in shaft and in turbine wheel, such that smallest heat flows

摘要

The method involves casting a hollow space (3) in the turbine wheel (2), and arranging the hollow space in the shaft (1) and in the turbine wheel, such that the smallest heat flows. The accuracies of the turbine wheel blank are represented, such that a preprocessing is not necessary. The mass tolerances in the components are compensated in the device during welding process.