| 摘要 |
A turbine unit having a rotor housing ( 2 ) having at least one admission channel ( 9 ) for a fluid, as well as a turbine rotor ( 4 ) which is supported in a turbine space ( 23 ) of the rotor housing ( 2 ) and wherein fluid is led into the turbine space ( 23 ) at its periphery through a VTG mechanism ( 5 - 8 ) of variable turbine geometry. The VTG mechanism ( 5 - 8 ) has a nozzle ring ( 6 ) having a plurality of vane shafts ( 8 ) which are arranged in the form of a crown on the nozzle ring ( 6 ) and which carry on one of their ends vanes ( 7 ) which can be moved from a substantially tangential position (relative to the crown) into a substantially radial position, as well as at least one control element ( 19 ) in order to pivot the orientation of the vanes ( 7 ).
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