US 7,461,506 B2
Exhaust gas cooler
Thomas E. McNally, Gilbert, Ariz. (US); Carson F. Langdon, Mesa, Ariz. (US); and Jenny L. Wang, Rochester Hills, Mich. (US)
Assigned to GM Global Technology Operations, Inc., Detroit, Mich. (US)
Filed on Sep. 21, 2006, as Appl. No. 11/533,780.
Prior Publication US 2008/0072582 A1, Mar. 27, 2008
Int. Cl. F01N 3/02 (2006.01)
U.S. Cl. 60—320  [60/293; 60/298; 60/318; 60/324; 138/112; 138/113; 138/148; 181/227; 181/249] 16 Claims
OG exemplary drawing
 
1. An exhaust system for a vehicle having an engine comprising:
a tailpipe having an outlet at a rearward edge and having an external diameter adjacent to the rearward edge; and
an exhaust gas cooler including a cooler housing having a substantially cylindrical shape with an open forward edge, an open rearward edge, and an internal diameter that is larger than the external diameter of the tailpipe; a cooler support attached to and supporting the cooler housing such that the rearward edge of the tailpipe is located within the cooler housing between the forward and rearward edges of the cooler housing; and a cross vane assembly including a vane mounted in the cooler housing between the rearward edge of the tailpipe and the open rearward edge of the cooler housing. the vane extending radially across substantially the entire inner diameter of the cooler housing.