Caterpillar Inc.

J Josh Driscoll

Robert L Meyer

Wade James Robel

Anthony C Rodman

Cornelius Nicolae Opris

Matthew Thomas Kiser

Matthew Earnest Williams

Bogdan Balea

Joanna Louise Costura

Dave Michael Thaler

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

Growing community of inventors

Dunlap, IL, United States of America

J Josh Driscoll