Patent ID: 9482131
Filing Date: 2016-11-01
CPC Classification: B01D,F01N,Y02T

Claim Text:
1. An exhaust after-treatment component for treating exhaust gas discharged from a combustion engine, the after-treatment component comprising: an exhaust after-treatment substrate, the exhaust after-treatment substrate including a first zone having a first catalyst, and a second zone surrounding the first zone and having a second catalyst, wherein an amount of the exhaust gas that travels through the first zone is greater than an amount of the exhaust gas that passes through the second zone, a catalyst loading of the first catalyst in the first zone is less than a catalyst loading of the second catalyst in the second zone, and a shape and location of the first zone is selected by the amount of the exhaust gas that passes through the first zone, wherein the first catalyst includes a first catalyst material and the second catalyst includes a second catalyst material different from the first catalyst material.