| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent an operator from feeling discomfort due to an impact caused when engine torque changes and a change in engine sound, in regenerating an exhaust gas purification system 50. <P>SOLUTION: The exhaust gas purification system includes: the exhaust gas purification device 50 arranged in an exhaust passage 77 of an engine 70, regeneration devices 70, 81, 82 and 117 for burning and removing particulate matter in the exhaust gas purification device 50, a regeneration advance notice means 24 that operates when a clogging state of the exhaust gas purification device 50 becomes a specified level or above, and a regeneration permission input means 21 for permitting operation of the regeneration devices 70, 81, 82 and 117. The regeneration devices 70, 81, 82 and 117 are started when the regeneration permission input means 21 is operated for permission when the regeneration advance notice means 24 operates. <P>COPYRIGHT: (C)2012,JPO&INPIT |
