Rotor for a turbo-machine

Abstract

A radial compressor includes a rotor arrangement having a rotating shaft, a rotor wheel that is arranged on the shaft and corotates with the shaft, and a shaft bearing arranged on the shaft. To achieve improved rotor dynamics, the rotor wheel has a recess toward the shaft, in which the shaft bearing is at least partially arranged.

1 - 8 . (canceled) 
     
     
         9 . A radial compressor, comprising:
 a rotor arrangement, comprising:
 a rotating shaft, 
 a corotating rotor wheel arranged on the shaft, and 
 a shaft bearing arranged on the shaft, 
   wherein the rotor wheel has a recess toward the shaft, in which the shaft bearing is at least partially arranged.   
     
     
         10 . The radial compressor as claimed in  claim 9 , wherein the rotor wheel is part of an overhung stage. 
     
     
         11 . The radial compressor as claimed in  claim 9 , wherein the shaft bearing is a radial bearing. 
     
     
         12 . The radial compressor as claimed in  claim 9 , wherein the recess is arranged on the wheel-disk side in the rotor wheel. 
     
     
         13 . The radial compressor as claimed in  claim 9 , wherein an axial center of the shaft bearing is arranged in the recess. 
     
     
         14 . The radial compressor as claimed  claim 9 , wherein a seal is arranged in the recess, between the shaft bearing and the rotor wheel. 
     
     
         15 . The radial compressor as claimed in  claim 9 , wherein a stator-side bearing receptacle of the shaft bearing projects into the recess. 
     
     
         16 . The radial compressor as claimed in  claim 14 , wherein the stator-side bearing receptacle also carries the seal.