Internal Combustion Engine Cylinder Head With Integral Exhaust Runners And Turbocharger Housing

Abstract

An internal combustion engine cylinder head is based upon a one-piece structure including a number of exhaust runners, an exhaust collector, and a turbocharger exhaust turbine housing, all formed as one-piece.

1 . An internal combustion engine, comprising:
 a. a plurality of power cylinders;   b. a cylinder head attached to said power cylinders, with said cylinder head comprising:   c. a plurality of exhaust runners conducting exhaust gases from the power cylinders;   d. an exhaust collector merging exhaust gases flowing through said plurality of exhaust runners; and   e. an integral turbocharger turbine housing extending through a wall of said exhaust collector.   
     
     
         2 . An internal combustion engine as recited in  claim 1 , further comprising an exhaust turbine located within said integral turbocharger turbine housing. 
     
     
         3 . An internal combustion engine as recited in  claim 1 , wherein said cylinder head further comprises:
 a. an exhaust turbine located within said integral turbine housing; and   b. a charge air compressor coupled with said exhaust turbine upon a common rotating shaft.   
     
     
         4 . An internal combustion engine as recited in  claim 1 , wherein said cylinder head further comprises a wastegate located within the cylinder head. 
     
     
         5 . An internal combustion engine as recited in  claim 1 , wherein said cylinder head further comprises at least one water cooling passage within said cylinder head assembly, wherein said at least one water cooling passage is in thermal communication with said integral turbocharger turbine housing. 
     
     
         6 . An internal combustion engine as recited in  claim 1 , wherein said cylinder head is configured as a one-piece structure comprising said exhaust runners, said exhaust collector, and said turbocharger turbine housing. 
     
     
         7 . An internal combustion engine as recited in  claim 6 , wherein said one-piece structure comprises aluminum. 
     
     
         8 . An internal combustion engine as recited in  claim 1 , wherein said exhaust turbine comprises an axial flow turbine. 
     
     
         9 . An internal combustion engine, comprising:
 a. a plurality of power cylinders;   b. a cylinder head attached to said power cylinders, with said cylinder head configured as a one-piece base structure comprising:   c. a plurality of exhaust runners conducting exhaust gases from the power cylinders;   d. an exhaust collector merging exhaust gases flowing through said plurality of exhaust runners; and   e. an integral turbine housing extending through a wall of said exhaust collector.   
     
     
         10 . An internal combustion engine as recited in  claim 9 , wherein said cylinder head further comprises:
 a. an exhaust turbine rotatably mounted within said integral turbine housing;   b. a compressor housing attached to said integral turbine housing; and   c. a charge air compressor located within said compressor housing, with said charge air compressor being coupled with said exhaust turbine upon a common rotating shaft.   
     
     
         11 . An internal combustion engine as recited in  claim 10 , wherein said exhaust turbine comprises an axial flow turbine. 
     
     
         12 . An internal combustion engine as recited in  claim 11 , wherein said one-piece base structure comprises aluminum. 
     
     
         13 . A cylinder head for a multicylinder internal combustion engine, comprising a one-piece structure having:
 a. a cylinder closure portion enclosing the upper ends of a plurality of power cylinders;   b. a plurality of exhaust runners extending from said cylinder closure portion, with the exhaust runners conducting exhaust gases from the power cylinders;   c. an exhaust collector merging exhaust gases flowing through said plurality of exhaust runners;   d. an integral turbocharger turbine housing formed in a wall of the exhaust collector, with said integral turbocharger turbine housing extending through a wall of said exhaust collector; and   e. a turbocharger exhaust outlet configured to conduct exhaust gases flowing from the turbine housing to an exterior portion of the cylinder head.   
     
     
         14 . A cylinder head for a multicylinder internal combustion engine as recited in  claim 13 , wherein said one-piece structure comprises aluminum. 
     
     
         15 . A cylinder head for a multicylinder internal combustion engine as recited in  claim 13 , further comprising an axial flow turbine.