Fca US LLC

Chrysler Group LLC

Andrew Brocker

James J Daley

Robert Joseph Jerger

Wei-Jun Yang

Jeffrey P Wuttke

Michael A Smith

Joseph M Dekar

Ken Hardman

Brett Schubring

Michael George Zammit

Craig L Dimaggio

Travis T Hamilton

Cody Baldwin-Squib

Xuefei Chen

Lydell S Powell

A secondary air pump assembly for a vehicle includes a housing having an air inlet and an air outlet, a pump disposed within the housing, a position assembly and a valve assembly. The position assembly is disposed within the housing and configured to monitor a speed of the pump. The valve assembly is configured to facilitate preventing a backflow of air into the housing. A secondary air system including the secondary air pump assembly is also provided.

Secondary air pump assembly

A system and method for utilizing fuel as an on-board reductant for selective catalytic reduction of NOx is provided and includes a controller for controlling an engine to produce a lean first exhaust stream and a rich second exhaust stream that are received in respective first and second passageways of a dual path aftertreatment system. The rich second exhaust stream reacts with NOx stored in a NOx storage and reduction catalyst of the second passageway to regenerate this catalyst and generate ammonia. The first exhaust stream and the second exhaust stream having the generated ammonia are combined in a downstream common passageway to form a combined lean exhaust gas stream where the ammonia carried therein is stored or used by an SCR catalyst of the common passageway for NOx reduction. The engine is subsequently controlled to produce a rich first exhaust stream and a lean second exhaust stream.

Dual path aftertreatment system and method utilizing fuel as an on-board reductant for NOx SCR

An exhaust gas flow concentration system for a catalyst includes an inlet that receives a flow of exhaust gas from an exhaust pipe of an exhaust system, a stationary tube in communication with the inlet and disposed upstream from the catalyst, and an extension tube in communication with the stationary tube and disposed upstream from the catalyst, where the extension tube includes a cross-sectional area less than a cross-sectional area of the catalyst. A displacement device is coupled to the extension tube and is configured to (i) displace the extension tube relative to the stationary tube downstream towards the catalyst as a temperature in the exhaust system decreases away from a light-off temperature of the catalyst and (ii) retract the extension tube relative to the stationary tube upstream away from the catalyst when the temperature in the exhaust system reaches the light-off temperature of the catalyst.

System for concentrating exhaust gas flow in a catalyst during cold starts

A liquid collection device for removing a liquid from a catalyst brick is provided and includes a containment vessel having an inner volume and a receiver supported by the containment vessel and in fluid communication with the inner volume, whereby the receiver supports the catalyst brick relative to the containment vessel. The collection device further includes a vacuum source spaced apart from the receiver and in fluid communication with the inner volume. The vacuum source exerts a fluid force on the catalyst brick to draw the liquid from the catalyst brick and into the inner volume.

Catalyst brick solution safe handling laboratory bench fixture

A catalyst degradation detection method for use with a zero ceria catalyst. The method uses techniques to measure transient responses to engine control events of upstream and downstream sensors to determine catalyst degradation and performance. By measuring transient behavior, the method can determine catalyst degradation and performance based on the limited oxygen storage of precious metal catalysts that do not include added ceria or other materials with high oxygen capture rates.

Zero ceria washcoat catalyst monitor

Growing community of inventors

Brighton, MI, United States of America

Andrew Brocker