Housing assembly for a turbocharger

Abstract

A compressor housing assembly is disclosed. The compressor housing assembly includes a compressor housing including a compressor housing flange. The compressor housing assembly may include a bearing housing. The bearing housing may include a body portion and a web. The web may extend outward from the body portion to a web end. The bearing housing may also include a bearing housing flange extending radially outward from the web. The compressor housing assembly may also include a clamping plate having a generally annular shape. The clamping plate may abut on the compressor housing flange and the bearing housing flange. In addition, the compressor housing assembly may include a fastener configured to attach the clamping plate to the compressor housing flange and the bearing housing flange.

What is claimed is: 
     
         1 . A compressor housing assembly, comprising:
 a compressor housing including a compressor housing flange;   a bearing housing, including:
 a body portion; 
 a web extending outward from the body portion to a web end, the web; and 
 a bearing housing flange extending radially outward from the web; 
   a clamping plate having a generally annular shape abutting on the compressor housing flange and the bearing housing flange; and   a fastener configured to attach the clamping plate to the compressor housing flange and the bearing housing flange.   
     
     
         2 . The compressor housing assembly of  claim 1 , wherein
 the compressor housing flange includes a threaded hole, and   the fastener includes threads that engage with the threaded hole.   
     
     
         3 . The compressor housing assembly of  claim 1 , wherein
 the compressor housing flange includes:
 a generally cylindrical flange inner surface; 
 a generally cylindrical flange outer surface; and 
 a clamping face extending radially from the flange inner surface to the flange outer surface, 
   the bearing housing flange includes a flange rear surface, and   the clamping face is disposed generally coplanar with the flange rear surface.   
     
     
         4 . The compressor housing assembly of  claim 3 , wherein
 the clamping face includes:
 a compressor flange recess extending radially outward from the flange inner surface to a recess outer edge disposed between the flange inner surface and the flange outer surface; and 
 a compressor flange lip extending radially from the recess outer edge to the flange outer surface, and 
   the clamping plate is configured to abut on the compressor flange lip and the flange rear surface.   
     
     
         5 . The compressor housing assembly of  claim 1 , wherein the clamping plate includes a plurality of clamping plate segments disposed circumferentially relative to a rotational axis of the compressor housing assembly. 
     
     
         6 . The compressor housing assembly of  claim 5 , wherein a number of the clamping plate segments is 3. 
     
     
         7 . The compressor housing assembly of  claim 1 , wherein the clamping plate segments include:
 a first clamping plate segment spanning over a first circumferential angle;   a second clamping plate segment spanning over a second circumferential angle; and   a third clamping plate segment spanning over a third circumferential angle.   
     
     
         8 . The compressor housing assembly of  claim 7 , wherein the first circumferential angle is about equal to the second circumferential angle. 
     
     
         9 . The compressor housing assembly of  claim 7 , wherein
 the first clamping plate segment has a first thickness, and   the second clamping plate segment has a second thickness different from the first thickness.   
     
     
         10 . A turbine housing assembly, comprising:
 a turbine housing including a turbine housing wall;   a bearing housing, including a bearing housing flange;   a clamping plate having a generally annular shape abutting on the turbine housing wall and the bearing housing flange; and   at least one fastener configured to attach the clamping plate to the turbine housing wall and the bearing housing flange.   
     
     
         11 . The turbine housing assembly of  claim 10 , wherein
 the turbine housing wall includes:
 a turbine inner surface configured to enclose a turbine wheel; and 
 a clamping face disposed opposite the turbine inner surface, 
   the bearing housing flange includes:
 a front face; 
 a rear face disposed opposite the front face; and 
 a bearing flange outer surface, and 
   the clamping face is disposed generally coplanar with the front face.   
     
     
         12 . The turbine housing assembly of  claim 11 , wherein
 the clamping face includes:
 a turbine flange recess extending axially inward from the clamping face towards the turbine inner surface; and 
 a turbine wall lip disposed adjacent the turbine flange recess, and 
   the clamping plate is configured to abut on the turbine wall lip and the front face of the bearing housing flange.   
     
     
         13 . The turbine housing assembly of  claim 12  further including a plurality of fasteners, wherein
 the turbine flange recess includes a plurality of circumferentially spaced holes, and 
 the fasteners are configured to be threadingly received in the holes. 
 
     
     
         14 . The turbine housing assembly of  claim 13 , wherein a circumferential spacing between the holes is non-uniform. 
     
     
         15 . The turbine housing assembly of  claim 10 , wherein the clamping plate includes a plurality of clamping plate segments disposed circumferentially relative to a rotational axis of the turbine housing assembly. 
     
     
         16 . A turbocharger, comprising:
 a turbine housing including a turbine housing wall;   a turbine wheel disposed within the turbine housing and configured to be driven by exhaust received from an engine;   a compressor housing including a compressor housing flange;   a compressor impeller disposed within the compressor housing;   a shaft connecting the turbine wheel and the compressor impeller;   a bearing housing, including:
 a first bearing housing flange configured to be attached to the compressor housing flange; 
 a second bearing housing flange configured to be attached to the turbine housing wall; 
   a first clamping plate having a generally annular shape abutting on the compressor housing flange and the first bearing housing flange;   a second clamping plate having a generally annular shape abutting on the turbine housing wall and the second bearing housing flange;   a first fastener configured to attach the first clamping plate to the compressor housing flange and the first bearing housing flange; and   a second fastener configured to attach the second clamping plate to the turbine housing wall and the second bearing housing flange.   
     
     
         17 . The turbocharger of  claim 16 , wherein
 the first clamping plate has a first thickness, and   the second clamping plate has a second thickness different from the first thickness.   
     
     
         18 . The turbocharger of  claim 17 , wherein
 the compressor housing flange includes:
 a compressor flange recess; and 
 a compressor flange lip disposed adjacent the compressor flange recess, and 
   the first clamping plate abuts on the compressor flange lip and the first bearing housing flange.   
     
     
         19 . The turbocharger of  claim 17 , wherein
 the turbine housing wall includes:
 a turbine flange recess; and 
 a turbine wall lip disposed adjacent the turbine flange recess, and 
   the second clamping plate abuts on the turbine wall lip and the second bearing housing flange.   
     
     
         20 . The turbocharger of  claim 19 , wherein
 the first clamping plate includes a first plurality of clamping plate segments, and   the second clamping plate includes a second plurality of clamping plate segments.