Patent ID: 7845465

Claim:
A vehicular exhaust resonator comprising: a housing having a lateral surface, an inlet header and an outlet header positioned at opposite ends of the lateral surface; an exhaust inlet conduit having an inlet end opening at the inlet header for receipt of vehicle exhaust gas and an outlet end, a cross-sectional area of the inlet end being larger than a cross-sectional area of the outlet end thereby creating a venturi effect region; an exhaust outlet conduit having an inlet end larger in cross-sectional area than and being in receipt of the outlet end of the exhaust inlet conduit, the exhaust outlet conduit having an outlet end at an opening in the outlet header and a portion having perforations therethrough; a first partition in the housing having a central aperture for receipt of the venturi effect region and a radially outer section coupled to an interior surface of the lateral surface of the housing; a second partition in the housing positioned downstream of the first partition and having a central aperture for receipt of the exhaust outlet conduit and a radially outer section coupled to the interior surface of the lateral surface of the housing, the first partition, the second partition and the lateral surface of the housing defining an air inlet chamber surrounding the venturi effect region and the inlet end of the exhaust outlet conduit; a plurality of apertures in the lateral surface of the housing for receipt of outside air into the air inlet chamber; and an open annular region of the inlet end of the exhaust outlet conduit in fluid communication with the air inlet chamber.