Caterpillar Inc.

J Josh Driscoll

Robert L Meyer

Wade James Robel

Anthony C Rodman

Cornelius Nicolae Opris

Matthew Thomas Kiser

Bogdan Balea

Matthew Earnest Williams

Dave Michael Thaler

Joanna Louise Costura

An after-treatment system includes, in series along an exhaust gas flow direction through the after-treatment system: a diesel oxidation catalyst (DOC), a diesel exhaust fluid (DEF) delivery device, a soot-reducing device and a selective catalytic reduction (SCR) catalyst.

After-treatment system

A particulate trap has a housing with an inlet and an outlet. The particulate trap also has a plurality of fluidly isolated filters stacked within the housing, between the inlet and the outlet. The stacked plurality of filters have a stack direction and a transverse direction and the flow of exhaust is directed through the plurality of filters in the transverse direction. The particulate trap further has an actuator with a blocking portion configured for linear movement to selectively block exhaust flow through each of the plurality of filters.

Particulate trap with selective blocking element

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Dunlap, IL, United States of America

J Josh Driscoll