EXHAUST PURIFYING DEVICE FOR INTERNAL COMBUSTION ENGINE

摘要

The present invention provides an internal combustion engine exhaust purification apparatus includes a filter (30) configured to collect particulate matter contained in exhaust gas, a selective catalytic reduction converter (40) provided downstream of the filter (30) to reduce nitrogen oxide contained, an oxidation catalyst converter (25) with an adsorption function provided upstream of the converter (40) to temporarily adsorb the nitrogen oxide contained in the exhaust gas, a burner (20) configured to increase the temperature of the exhaust gas flowing into the filter (30), the selective catalytic reduction converter (40), and the oxidation catalyst converter (25) to set the temperature of the filter (40) to at least a predetermined recovery temperature, thus recovering the filter (40), and an ECU (100) configured to inhibit the burner (20) from being started when the burner (20) is otherwise to be started but if the selective catalytic reduction converter (40) has not been activated.