Method for regenerating particulate filter

Details Method for regenerating particulate filter Method for regenerating particulate filter

2006-04-04

2006-04-04

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

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

C060S274000, C060S286000, C060S297000, C060S303000, C060S311000

Reexamination Certificate

active

07021051

ABSTRACT:
Fuel is added to exhaust gas9upstream of a catalytic regeneration type particulate filter13in an exhaust pipe11. The fuel added is oxidized on a flow-through type oxidization catalyst14before the particulate filter13to generate exothermic heat with which captured and accumulated particulates in the particulate filter13are burned off to forcibly regenerate the particulate filter13. When the driving is being performed in light-load engine operation areas upon forcible regeneration of the particulate filter13, a retarder22is activated, with an accelerator pedal retaining its on-state, and an amount of fuel injected is increased to compensate reduction of torque due to such activation of the retarder22.

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Patent Abstrracts of Japan, JP 11-101122, Apr. 13,1999.

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