Patent ID: 8110151

Claim:
A diesel exhaust treatment device comprising: a main body having a central longitudinal axis that extends between first and second ends of the main body, the main body defining a flow passage through which exhaust gases flow from the first end to the second end; a catalyzed substrate positioned within the flow passage of the main body, the substrate having an upstream face; a side inlet positioned at a first side portion of the main body for directing the exhaust gases into the flow passage of the main body; and a flow distribution element positioned within the flow passage of the main body at a location between the inlet and the upstream face of the substrate, the flow distribution element extending across a direction of exhaust flow through the main body, the flow distribution element being mounted at a second side portion of the main body that is diametrically opposite the first side portion of the main body such that the side inlet and the flow distribution element are positioned at diametrically opposite sides of the central longitudinal axis of the main body, the flow distribution element having a height that is less than 50 percent of a corresponding internal height of the flow passage of the main body between the inlet and the upstream face of the substrate, wherein the height of the flow distribution element and the internal height of the flow passage of the main body are measured along a plane that is generally perpendicular to the central longitudinal axis.