Radial compressor

Abstract

A radial compressor, in particular radial compressor of an exhaust gas turbocharger, with an impeller, a stationary housings, a main flow passage defined by the housing for feeding a medium to be compressed in the direction of the impeller, and a secondary flow chamber arranged radially outside the main flow passage, which is delimited from the main flow passage by a contour wall and which is connected to the main flow passage via a secondary flow opening in the region of the impeller. Seen in the meridian section, the secondary flow opening, via which the secondary flow chamber is connected to the main flow passage in the region of the impeller, is set obliquely or inclined relative to a radial direction.

What is claimed is: 
     
         1 . A radial compressor, comprising:
 a rotating impeller;   a stationary housing;   a main flow passage defined by the stationary housing configured to feed a medium to be compressed in a direction of the impeller;   a secondary flow chamber arranged radially outside the main flow passage, which is delimited from the main flow passage by a contour wall and which is connected to the main flow passage via a secondary flow opening in the region of the impeller;   a meridian section the secondary flow opening, via which the secondary flow chamber is connected to the main flow passage in the region of the impeller, is set obliquely or inclined relative to a radial direction.   
     
     
         2 . The radial compressor according to  claim 1 , wherein in the meridian section the secondary flow opening, via which the secondary flow chamber is connected to the main flow passage in a region of the impeller, includes an angle between 10° and 80° with the radial direction. 
     
     
         3 . The radial compressor according to  claim 2 , wherein in the meridian section the secondary flow opening includes an angle between 10° and 70° with the radial direction. 
     
     
         4 . The radial compressor according to  claim 3 , wherein n the meridian section the secondary flow opening includes an angle between 20° and 70° with the radial direction. 
     
     
         5 . The radial compressor according to  claim 4 , wherein in the meridian section the secondary flow opening includes an angle between 20° and 60° with the radial direction. 
     
     
         6 . The radial compressor according to  claim 1 , wherein the secondary flow chamber is connected to the main flow passage in a flow direction of the medium to be compressed upstream of the impeller via a further secondary flow opening. 
     
     
         7 . The radial compressor according to  claim 1 , wherein the radial compressor is a radial compressor of an exhaust gas turbocharger.