Caterpillar Inc.

Matthew Owen Stefanick

Brett M Bailey

Ronald Graham Silver

Clifford E Cotton, Iii

Christie Susan Ragle

Svetlana Mikhailovna Zemskova

Julie Marie Faas

Christopher Joseph Rynders, Jr

The present disclose is directed to a power system. The power system may include a power source that creates a flow of exhaust. The power system may further include a particulate collection device that receives the flow of exhaust. The power system may also include an additive injector located downstream of the power source, the additive injector may be configured to provide a controlled supply of additive to the flow of exhaust.

Power system

An exhaust emission control system for an internal combustion engine is disclosed. The exhaust emission control system has a first passageway and a second passageway disposed to receive exhaust in parallel. The exhaust emission control system also has a valve arrangement configured to regulate the flow of exhaust to the first and second passageways, and at least one sensor configured to sense a parameter indicative of a constituent of the exhaust. The at least one sensor generates a signal corresponding to the sensed parameter. The exhaust emission control system also has a controller in communication with the valve and the at least one sensor. The controller is configured to affect operation of the valve in response to the signal.

Dual path exhaust emission control system

Growing community of inventors

Peoria, IL, United States of America

Matthew Owen Stefanick