Integrated exhaust manifold and cylinder head gasket

Abstract

A gasket assembly for an internal combustion engine having a cylinder head gasket and an exhaust manifold gasket. The cylinder head gasket and the exhaust manifold gasket have a common layer of gasket material. The gasket assembly is formed by stamping a cylinder head gasket portion for the engine in one region of a common layer of gasket material concurrently with stamping an exhaust gasket portion for the engine in an adjacent region of the common layer of material.

1 - 14 . (canceled) 
   
   
       14 . A method for forming a gasket assembly for an internal combustion engine, comprising:
 stamping a cylinder head gasket portion for the engine in one region of a common layer of gasket material concurrently with stamping an exhaust gasket portion for the engine in an adjacent region of the common layer of material.   
   
   
       15 . The method recited in  claim 14  wherein a folded region is formed between the portion of the common layer providing the exhaust gasket and the portion of the common layer providing the cylinder head gasket. 
   
   
       16 . The method recited in  claim 14  wherein a perforated region is disposed between the portion of the common layer providing the exhaust gasket and the portion of the common layer providing the cylinder head gasket. 
   
   
       17 . The method recited in  claim 14  including providing at least one additional layer on the common layer. 
   
   
       18 . The method recited in  claim 15  including providing at least one additional layer on the common layer. 
   
   
       19 . The method recited in  claim 16  including providing at least one additional layer on the common layer.