| 摘要 |
The invention relates to a turbine wheel (1) comprising a hub (15) and impeller blades (14), each impeller blade (14) being connected to the hub along a curved section (12) thereof. The impeller blades are embodied and arranged on the hub in such a way that the hub section (12) deviates from the radial direction and is bent towards the pressure side of the impeller blade, and the hub has a scalloping contour (11) between two adjacent impeller blades, in the region of a rear wall of the hub. The hub section (12) of each impeller blade (14) is positioned in relation to the scalloping surface (Fl + F2) in such a way that said surface is supported as symmetrically as possible by the impeller blade. Less stresses appear in the inventive turbine wheel with three-dimensionally curved impeller blades and scalloping in the region of the rear wall of the hub due to the scalloping deformations.
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