Exhaust gas post treatment system

Details Exhaust gas post treatment system Exhaust gas post treatment system

2007-08-16

2010-12-28

Tran, Binh Q. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

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

C060S286000, C060S297000, C060S301000, C060S311000, C055SDIG030, C502S305000, C502S325000, C502S349000

Reexamination Certificate

active

07856809

ABSTRACT:
An exhaust gas post treatment system for nitrogen oxide and particle reduction of internal combustion engines operated with excess air, comprising a particle filter disposed in the exhaust gas stream of the internal combustion engine. The particle filter is a surface-type particle filter or a deep bed filter, and is charged on an outlet side with an SCR-active catalyst material for reducing nitrogen oxides. Ammonia or an ammonia-releasing reduction agent is supplied to the exhaust gas stream upstream of the particle filter.

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