Exhaust emission control system for internal combustion engine

Details Exhaust emission control system for internal combustion engine Exhaust emission control system for internal combustion engine

2006-07-11

2009-08-18

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...

C060S295000, C060S297000, C060S311000

Reexamination Certificate

active

07574857

ABSTRACT:
In an exhaust emission control system for a vehicular internal combustion engine, a particulate filter collects particulate matters in an exhaust gas of the internal combustion engine. A filter regenerator regenerates the particulate filter by burning the particulate matters accumulated in the particulate filter. A filter front clogging detector determines whether a front end portion of the particulate filter is clogged by the particulate matters. A filter regeneration controller that controls the filter regenerator to perform a front regeneration to remove the particulate matters accumulated in the front end portion of the particulate filter when the filter front clogging detector determines that the front end portion of the particulate filter is clogged.

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Preliminary Search Report issued Feb. 9, 2009 in corresponding French Application No. 0606314000 and an at least Partial English language translation thereof.

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