Authors
C. Scott Sluder and Brian H. West
Publication
SAE Paper# 2002-01-2876, Society of Automotive Engineers, 2002
Abstract
A 1999 Mercedes A170 CDI has been equipped with prototype NOx adsorber
devices in order to study the impacts of regeneration conditions on the emissions
reduction performance of the devices. This study consisted of a number of
laboratory experiments utilizing a bottled-gas injection system to periodically
provide fuel-rich exhaust conditions for device regeneration. The NOx adsorbers
were evaluated on the LA4 driving cycle using a fixed regeneration schedule.
The rich-pulse duration and minimum air/fuel ratio during the rich pulse were varied
and the impacts upon pollutant emission rates measured. Results are presented for
5 prototype NOx adsorbers.
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