Shaft for supporting e.g. compressor in loading device i.e. exhaust gas turbocharger, of internal combustion engine in motor vehicle, has trochoid or hypo-trochoid cross section provided in axial end area

摘要

The shaft (1) has a trochoid or hypo-trochoid cross section or cross section of a reuleaux polygon e.g. reuleaux triangle, in an axial end area (3) that stays in connection with a component (2) e.g. compressor wheel (4), and intervenes at the component in a complementary hub (6). The shaft supports the component at the axial end area, where the shaft is rotatably supported in a housing. The Reuleaux polygon has corners that are rounded off with connecting area. The compressor wheel is made of plastic.