| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an internal combustion engine, which removes fuel remaining in an exhaust system with filter regeneration operation and eliminates adverse effects by the remaining fuel. <P>SOLUTION: For the exhaust emission control device performing the regeneration operation of a particulate filter by post injection and the throttling operation of an exhaust throttle valve, after termination of the regeneration operation, the post injection is stopped and the throttling operation of the throttle valve is continued. Thereby, the remaining fuel flowing in the exhaust system, in particular between a drive shaft 55b and a bush 59 in a variable nozzle vane mechanism of a variable nozzle type turbocharger, can be discharged to the atmosphere by increasing the pressure in the exhaust system and operation of the variable nozzle vane mechanism can be secured satisfactorily. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
