Patent ID: 9669359
Date: 2017-06-06
CPC Classifications: B01D,B01J,F01N

Claim:
1. A catalytic converter for modifying the composition of exhaust gas of an engine, the catalytic converter comprising: a housing defining an inlet for receiving the exhaust gas from the engine, a main chamber in fluid communication with the inlet, and an outlet in fluid communication with the main chamber for exhausting the modified exhaust gas; a substrate body disposed within the main chamber and defining a plurality of flow channels, the flow channels providing fluid communication between the inlet and the outlet; and a first layer of catalyst material providing a first section of the flow channels with a first overall wall thickness that is greater than a second overall wall thickness of a second section of the flow channels; a second layer of catalyst material providing the second section of the flow channels with the second overall wall thickness, the second layer is opposite to the first layer, and the second layer has a thickness that is less than the first layer; wherein a first flow channel of the plurality of flow channels defined in part by the first layer and the second layer extends along a curved path, the first layer having the first overall wall thickness is radially outward of the second layer having the second overall wall thickness relative to an axis of the curved path.