A rotor assembly comprises an annular sleeve (30) having an inner member (34) connected around a shaft (20) to rotate together therewith and an outer member (36) with a first end connected to the inner member (34). The outer member (36) defines an annular ...

The method involves forming form-fit geometry (15) by two components (1, 2) i.e. rotor and impeller, where the components are fixed to each other and one of components is made of a non-weldable material such as titanium aluminide. A portion of one of the c...

An assembly (600) for a turbocharger (200) includes a shaft (620) with an axial extension and a shaft-side groove portion, the shaft-side groove portion defined at least in part by a radial height; a turbine wheel (660) with a counter bore and a turbine wh...

Disclosed is a joining method which helps to achieve an improvement in joining accuracy for wheel and turbine shaft. In the joining method, at least a part of the inner peripheral wall of the fixing hole 3 of the wheel 1 is tapered so as to be reduced in d...

A cylindrical boss hole 2a with a preferred tolerance is formed beforehand in the portion of a precision cast turbine blade unit 2, where it is to be joined to a rotor shaft 3. One end of the rotor shaft that has been finish machined beforehand is inserted...