Surface component for vehicle exhaust system

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
• 100
• ⁢
• mm
• _
• :
• (
• 100
• ⁢
• mm
• ≤
• V
• min
• (
• mm
• 3
• )
• A
• (
• mm
• 2
• )
• )
• .