US 12,173,633 B2
Exhaust assembly
Jason C. Johnson, Brighton, MI (US); Bradley Smith, Ann Arbor, MI (US); and Brett Herwat, Jackson, MI (US)
Assigned to Tenneco Automotive Operating Company Inc., Lake Forest, IL (US)
Filed by TENNECO AUTOMOTIVE OPERATING COMPANY INC., Lake Forest, IL (US)
Filed on Oct. 13, 2022, as Appl. No. 17/965,031.
Claims priority of provisional application 63/255,570, filed on Oct. 14, 2021.
Prior Publication US 2023/0122518 A1, Apr. 20, 2023
Int. Cl. F01N 13/08 (2010.01); F01N 13/18 (2010.01)
CPC F01N 13/082 (2013.01) [F01N 13/1805 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An exhaust assembly comprising:
a first tailpipe comprising an exit end defining an outlet and a curved portion along at least a portion of a length of the first tailpipe, wherein the first tailpipe is adapted to discharge an exhaust gas through the outlet;
a baffle surrounding the first tailpipe at the exit end, the baffle defining a plurality of perforations therethrough; and
a pair of shields formed as separate parts, wherein each shield is attached to and at least partially surrounds each of the baffle and the first tailpipe, each shield extending from a first end proximal to the exit end of the first tailpipe to a second end distal to the exit end of the first tailpipe, wherein each shield engages the baffle at the first end and engages the first tailpipe at least at or proximal to the second end, wherein each shield is at least partially curved along its length, such curve being complementary in shape to a curve of the curved portion of the first tailpipe, such that each shield at least partially surrounds the curved portion of the first tailpipe, and wherein the pair of shields is adapted to allow fluid flow to or from the plurality of perforations of the baffle.