| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve both improvement of fuel economy and avoidance of engine oil dilution when regenerating an exhaust gas purification device 50. <P>SOLUTION: The exhaust gas purification system is provided with an exhaust gas purification device 50 arranged in an exhaust path 77 of an common rail type engine 70, and constituted so as to allow the execution of a plurality of regeneration modes for burning and removing particulate substance deposited in the exhaust gas purification device 50. The initialization regeneration (forced regeneration) mode for supplying fuel in the exhaust gas purification device 50 through post injection E irrespective of a clogging state of the exhaust emission control device 50 when cumulative driving time Te of the engine 70 reaches or exceeds a predetermined time T0, is included as one of a plurality of regeneration modes. <P>COPYRIGHT: (C)2012,JPO&INPIT |
