Patent ID: 8230678

Claim:
An exhaust gas treatment system for treating exhaust gases from a diesel engine of a land vehicle, the land vehicle comprising first and second elongated vehicle frame rails that extend in a lengthwise direction of the vehicle, the exhaust gas treatment system comprising: a housing coupled to at least one of the frame rails and comprising an exhaust gas inlet and an exhaust gas outlet, the housing comprising a lengthwise extending protrusion positioned at least partially beneath said one of the frame rails, the housing comprising a void area above the protrusion with at least a portion of said one of the frame rails being positioned in the void area above the protrusion; first and second diesel particulate filters within the housing, each diesel particulate filter comprising a diesel particulate filter inlet coupled to the exhaust gas inlet and a diesel particulate filter outlet; a diesel exhaust fluid mixing chamber within the housing, the mixing chamber comprising a mixing chamber inlet coupled to each of the diesel particulate filter outlets and a mixing chamber outlet; and first and second selective catalytic reduction (SCR) converters within the housing, each SCR converter comprising an SCR inlet coupled to the mixing chamber outlet and an SCR outlet coupled to the exhaust gas outlet.