Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2006-09-20
2011-10-18
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, C060S286000, C060S287000, C060S292000, C060S303000, C060S324000
Reexamination Certificate
active
08037676
ABSTRACT:
An exhaust gas purification system including a reducing agent supplying apparatus and an exhaust gas purification apparatus, in that order from an upstream side of an exhaust passage in an internal combustion engine, and a control unit for controlling an amount of reducing agent supplied into the exhaust gas to recover purification capability of the exhaust gas purification apparatus. A concentration of the reducing agent in the exhaust gas, which flows into the exhaust gas purification apparatus, is varied temporally. The reducing agent is supplied in a proper amount to efficiently recover the purification capability. At the same time, the outflow of the reducing agent to the downstream side of the exhaust gas purification apparatus can be prevented.
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Gabe Masashi
Nagaoka Daiji
Isuzu Motors Limited
Staas & Halsey , LLP
Tran Binh Q
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