Exhaust emission control device for an internal combustion...

Details Exhaust emission control device for an internal combustion... Exhaust emission control device for an internal combustion...

2008-05-06

2008-05-06

Nguyen, Tu M. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

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

C060S274000, C060S289000, C060S295000, C060S297000, C060S303000, C422S170000, C422S177000, C422S182000

Reexamination Certificate

active

07367182

ABSTRACT:
A forced regeneration device which performs regeneration of a particulate filter includes oxidation catalysts (23, 24a) disposed upstream from the particulate filter or in said particulate filter and a burner (30) located upstream from the oxidation catalysts and operable switching between a combustion mode for combusting a fuel spray by inflammation to raise temperature of exhaust gases in an exhaust passage and a fuel supply mode for supplying only a fuel spray to the exhaust passage without inflammation. After the burner operates in the combustion mode, the burner operation is switched to the fuel supply mode.

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Foreign Office Action dated Jun. 23, 2006 in a counterpart Chinese application No. 200410035140.9 filed Apr. 23, 2004.

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