| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To efficiently regenerate a diesel particulate filter in a post-treatment device provided in an exhaust path of exhaust gas. <P>SOLUTION: An EGR circuit 44 connects the downstream side of an exhaust gas post-treatment device 46 to the upstream side of an air intake turbine 36 of a turbocharger TB. A diesel engine has an engine control unit 100 which performs the control of fully closing an EGR valve 43 and throttles a throttle valve 47 to regenerate the diesel particulate filter 46b when a pressure sensor 52 provided at the upstream side of a diesel particulate filter 46b detects pressure equal to or higher than a predetermined value; and stops the regeneration of the diesel particulate filter 46b when a temperature sensor 53 provided at the downstream side of the diesel particulate filter 46b detects the temperature equal to or higher than the predetermined value. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
