Arvin Technologies, Inc.

Emcon Technologies LLC

Prasad Tumati

Wilbur H Crawley

William Taylor, Iii

John P Nohl

Michael J Daniel

A diesel engine exhaust system includes a NOx absorber and a diesel fuel fired burner operated at an enriched fuel-to-air ratio to generate a sufficient quantity of CO and Hfor regenerating the NOx absorber. A method of operating a diesel exhaust system is also disclosed.

Method and apparatus for regenerating a nitrogen oxides absorber

A combination emission abatement assembly includes a first emission device such as a NOtrap and a second emission abatement device such as a soot particulate filter. Reformate gas from a fuel reformer is used to selectively regenerate both the NOtrap and the soot particulate filter. A method of operating an emission abatement device is also disclosed.

Combination emission abatement assembly and method of operating the same

The present invention involves thermal management of an integrated emission reduction system for the removal of particulate matter (PM) and nitrogen oxides (NOx) from diesel engine exhaust streams. The inventive integrated emission reduction system may include a diesel particulate filter (DPF), a heat source for adjusting the temperature of the exhaust stream entering the DPF, at least one selective catalytic reducer of NOx, a heat exchanger for adjusting the temperature of the exhaust stream entering the NOx reducer, and a computing device for monitoring the temperature and/or pressure of the exhaust stream entering the DPF and the NOx reducer, and for controlling the operation of the heat exchanger and heat source, thereby improving the efficiency of the DPF and the NOx reducer.

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Greenwood, IN, United States of America

Prasad Tumati