Optimized NOx reduction system

Details Optimized NOx reduction system Optimized NOx reduction system

2006-08-24

2010-10-19

Denion, Thomas E (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S274000, C060S295000, C060S301000, C060S303000

Reexamination Certificate

active

07814744

ABSTRACT:
An exhaust after-treatment system for an internal combustion engine includes a lean NOx catalyst having an exhaust stream from the internal combustion engine flowing therethrough. A NOx absorber catalyst is downstream of the lean NOx catalyst. The NOx absorber is selectively regenerated to increase a NOx reduction efficiency of the exhaust after-treatment system.

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patent: 6293096 (2001-09-01), Khair et al.
patent: 7051520 (2006-05-01), Nagaoka et al.
patent: 7063642 (2006-06-01), Hu et al.
patent: 7401462 (2008-07-01), Naik et al.

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