US 11,808,186 B2
Surface component for vehicle exhaust system
Gabriel Ostromecki, Ann Arbor, MI (US); Stephen Thomas, Laingsburg, MI (US); Asela Benthara-Wadumesthrige, Ann Arbor, MI (US); and Frederick M. Baumgartner, 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 May 12, 2021, as Appl. No. 17/318,489.
Prior Publication US 2021/0285349 A1, Sep. 16, 2021
Int. Cl. F01N 13/08 (2010.01); F01N 1/00 (2006.01)
CPC F01N 1/006 (2013.01) [F01N 13/08 (2013.01); F01N 2470/20 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A vehicle exhaust system comprising:
an exhaust component defining a central axis and having an inner surface and an outer surface, such that the inner surface defines a primary exhaust gas flow path extending along the central axis from an inlet to an outlet; and
a surface component having a hood spaced from the exhaust component to define a reservoir having a reservoir volume (V), the reservoir comprising a reservoir inlet fluidly coupled to the primary exhaust gas flow path and defining an inlet area (A), and a reservoir outlet fluidly coupled to an outside environment;
wherein fluid traveling along the primary exhaust gas flow path and through the reservoir inlet defines a diverted flow (DF) and the hood holds the diverted flow (DF) within the reservoir;
wherein the hood enables the diverted flow (DF) to change direction at least once within the reservoir; wherein the diverted flow (DF) flows through the reservoir in a first direction and a second direction opposite the first direction; and
wherein a minimum reservoir volume (Vmin) to inlet area (A) ratio is greater than or equal to

OG Complex Work Unit Math