Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2011-03-15
2011-03-15
Tran, Binh Q (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
C060S274000, C060S285000, C060S295000, C060S301000
Reexamination Certificate
active
07905086
ABSTRACT:
An exhaust gas purification system having a NOx conversion catalyst device with a catalyst supported thereon for conversion of NOx in the exhaust gas. In order to accurately introduce a fuel in a necessary and sufficient amount for raising the temperature for allowing the NOx conversion catalyst device to be brought to a desulfurization target temperature, even during transient operation to maintain the state of the device at a temperature of the desulfurization target or above, an amount of fuel necessary for raising a first detection temperature as an indicator of the catalyst temperature to a desulfurization target temperature is set using a heat quantity computed from a first heat quantity necessary for raising the temperature of the NOx conversion catalyst device and a second heat quantity necessary for raising the temperature of the exhaust gas.
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Bogue Jesse
Isuzu Motors Limited
Staas & Halsey , LLP
Tran Binh Q
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