Exhaust manifold for a vehicle

Abstract

An exhaust manifold for a vehicle includes a plurality of runners respectively connected to a plurality of exhaust ports of an engine; a first exhaust passage communicating with at least one of the plurality of runners; and a second exhaust passage communicating with a remnant of the plurality of runners, wherein the first and second exhaust passages, and the plurality of runners are formed inside a monolithic manifold body.

1 . An exhaust manifold for a vehicle comprising: 
 a plurality of runners configured and dimensioned to be respectively connected to a plurality of exhaust ports of an engine;    a first exhaust passage communicating with at least one of the plurality of runners; and    a second exhaust passage communicating with another of said plurality of runners,    wherein the first and second exhaust passages, and the plurality of runners are formed inside a monolithic manifold body.    
   
   
       2 . The exhaust manifold of  claim 1 , wherein the first and second exhaust passages are partitioned by a wall.  
   
   
       3 . The exhaust manifold of  claim 2 , wherein said wall is a single wall.  
   
   
       4 . The exhaust manifold of  claim 1 , wherein the plurality of runners is partitioned by a wall.  
   
   
       5 . The exhaust manifold of  claim 4 , wherein said wall is a single wall.  
   
   
       6 . The exhaust manifold of  claim 1 , wherein the manifold body is a generally rectangular parallelepiped.  
   
   
       7 . The exhaust manifold of  claim 1 , wherein the plurality of runners is substantially perpendicular to the first and second exhaust passages.  
   
   
       8 . The exhaust manifold of  claim 1 , wherein the plurality of runners is substantially linear and the runners are substantially perpendicular to each other.  
   
   
       9 . The exhaust manifold of  claim 1 , wherein the first and second exhaust passages are substantially linear and are substantially perpendicular to each other.  
   
   
       10 . The exhaust manifold of  claim 1 , wherein: 
 the manifold body is a generally rectangular parallelepiped;    the plurality of runners are substantially perpendicular to the first and second exhaust passages;    the plurality of runners is substantially linear and the runners are substantially perpendicular to each other; and    the first and second exhaust passages are substantially linear and are substantially perpendicular to each other.