US 12,297,761 B2
Exhaust system component with multi-layer support mat
Jason Roy Porter, Spring Arbor, MI (US)
Assigned to Tenneco Automotive Operating Company Inc., Northville, MI (US)
Filed by Tenneco Automotive Operating Company Inc., Northville, MI (US)
Filed on Apr. 5, 2023, as Appl. No. 18/296,011.
Prior Publication US 2024/0337208 A1, Oct. 10, 2024
Int. Cl. F01N 3/28 (2006.01)
CPC F01N 3/2864 (2013.01) [F01N 2310/00 (2013.01); F01N 2330/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An exhaust system component comprising:
a housing including an inner surface having a first longitudinal axis;
a core positioned within the housing and including an outer surface circumferentially extending about a second longitudinal axis offset from the first axis; and
a mat positioned within the housing and compressed between the outer surface of the core and the inner surface of the housing, the mat being wrapped about the outer surface of the core more than one revolution such that a first circumferentially extending zone exists where the mat is x layers thick and a second circumferentially extending zone exists where the mat is x+1 layers thick, wherein the second longitudinal axis is offset from the first longitudinal axis in a direction toward the first circumferentially extending zone and x is an integer having a magnitude of at least 2.