Exhaust purifying apparatus and exhaust purifying method for...

Details Exhaust purifying apparatus and exhaust purifying method for... Exhaust purifying apparatus and exhaust purifying method for...

2007-03-06

2007-03-06

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...

C060S286000, C060S297000, C060S311000

Reexamination Certificate

active

10552588

ABSTRACT:
In an exhaust purifying apparatus, a fuel adding valve (31) supplies unburned fuel to an exhaust passage (14) of a diesel engine (10) so that particulate matter collected in a catalytic converter (33) is burned and removed. The supply of unburned fuel from the fuel adding valve (31) is executed even after an electronic control unit (41) determines that particulate matter in the catalytic converter (33) has been burned and removed. This reduces the amount of particulate matter remaining unburned in the catalytic converter (33).

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patent: 2003-020930 (2003-01-01), None

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