Cast turbine housing with stamped volute

Abstract

A turbine housing includes a housing having a volute section. A volute insert is positioned within an interior portion of the volute section. The surface of the volute insert may be smoother than the interior surface of the volute to reduce turbulence and increase air flow within the volute.

1 . A turbine housing comprising:
 a housing including a volute section;   a volute insert positioned within an interior portion of said volute section; and   wherein the surface of said volute insert is smoother than the interior surface of said volute section.   
     
     
         2 . The turbine housing of  claim 1 , wherein said housing is a cast housing. 
     
     
         3 . The turbine housing of  claim 2 , wherein said cast housing is comprised of cast iron. 
     
     
         4 . The turbine housing of  claim 1 , wherein said volute insert is stamped. 
     
     
         5 . The turbine housing of  claim 4 , wherein said volute insert is comprised of stamped steel. 
     
     
         6 . The turbine housing of  claim 1  further comprising a turbine positioned within the housing. 
     
     
         7 . The turbine housing of  claim 1 , wherein said housing is positioned on an exhaust side of a turbocharger. 
     
     
         8 . The turbine housing of  claim 1 , wherein said housing is positioned on a compressor side of a turbocharger. 
     
     
         9 . The turbine housing of  claim 1 , wherein the volute insert covers between 90% and 100% of the interior surface of the volute section. 
     
     
         10 . The turbine housing of  claim 1 , wherein the volute insert covers between 80% and 90% of the interior surface of the volute section. 
     
     
         11 . The turbine housing of  claim 1 , wherein the volute section is generally spiral shaped.