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...

2005-03-10

2011-12-20

Nguyen, Tu (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, C060S303000

Reexamination Certificate

active

08079212

ABSTRACT:
In an exhaust purifying apparatus for an internal combustion engine on a vehicle, heating control is executed for supplying fuel to exhaust purification catalysts, thereby increasing the catalyst bed temperature. The heating control is suspended when the vehicle is determined to be driving downhill. Adverse influences due to deactivation of the exhaust purification catalysts during the heating control are reliably avoided.

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Korean Office Action, May 17, 2007.

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