CPC F01N 3/021 (2013.01) [F01N 9/002 (2013.01); F01N 9/005 (2013.01); F01N 2430/04 (2013.01); F01N 2610/102 (2013.01); F01N 2610/12 (2013.01); F01N 2610/1426 (2013.01); F01N 2610/1453 (2013.01); F01N 2900/1611 (2013.01)] | 10 Claims |
1. An exhaust gas aftertreatment system for operative connection to an engine, the exhaust gas aftertreatment system comprising:
a particulate filter;
an ash dispenser coupled to an exhaust conduit upstream of the particulate filter, the ash dispenser configured to release a predetermined amount of ash into exhaust gas produced by the engine so as to pre-condition the particulate filter; and
a controller configured to maintain an operating parameter of the engine constant while the ash dispenser releases the predetermined amount of ash.
|