EXHAUST GAS PURIFICATION METHOD AND EXHAUST GAS PURIFICATIONAPPARATUS

摘要

A particulate filter (22) is installed in the exhaust gas passageway of an internal combustion engine. When the amount of particulates discharged from a combustion chamber (5) per unit time exceeds the amount of oxidatively removable particulates capable of oxidative removal without generating luminous flames on the particulate filter (22) per unit time, the amount of discharged particulates and/or the amount of oxidatively removable particulates is controlled in such a manner that the amount of discharged particulates is smaller than the amount of oxidatively removable particulate s, thereby continuously oxidatively removing the particulates contained in the exhaust gases without generating luminous flames on the particulate filter (22).