Caterpillar Inc.

Mark Lunau Schmid

Raymond Upano Isada

Eric Paul Spaeth

Julian Justin

An aftertreatment module may include a housing with an inlet port and an outlet port. A selective catalytic reduction catalyst may be disposed between the inlet port and the outlet port. A diffuser plate may be disposed downstream of the inlet port and upstream of the selective catalytic reduction catalysts. The diffuser plate may include a first section including a first degree of porosity and a second section including a second degree of porosity. The first degree of porosity may be greater than the second degree of porosity.

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Peoria, IL, United States of America

Mark Lunau Schmid