Exhaust gas control apparatus and exhaust gas control method...

Details Exhaust gas control apparatus and exhaust gas control method... Exhaust gas control apparatus and exhaust gas control method...

2005-06-07

2008-10-28

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...

C060S287000, C060S294000, C060S295000

Reexamination Certificate

active

07441402

ABSTRACT:
In an exhaust gas control apparatus and exhaust gas control method for an internal combustion engine, in which fuel is supplied to a purification mechanism provided in an exhaust passage so that a function of the purification mechanism is recovered. A flow rate of exhaust gas flowing in the exhaust passage or a value correlated with the flow rate is detected, and fuel supply timing is controlled based on a result of the detection. Accordingly, even when the flow rate of the exhaust gas flowing in the exhaust passage is variously changed based on the engine operating state, the fuel supply timing can be set based on the flow rate that is appropriately detected. Thus, it is possible to appropriately convey the supplied fuel to the purification mechanism using force of the exhaust gas.

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French Search Report, Appln. No. 0505970 issued Mar. 21, 2007.

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