| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve malfunction when a DPF is forcibly regenerated, caused by an inevitable reduction in temperature of exhaust gas in DOCs, as the DOCs are arranged in positions separated from an exhaust manifold. <P>SOLUTION: This diesel engine is configured as the following. In an exhaust path 14 discharging exhaust gas through the side of the turbine 13a of a turbosupercharger 13 from the exhaust manifold 12, the first DPF 16 removing particulate matter PM in exhaust gas subsequently to the first DOC 15 oxidizing unburnt fuel is arranged in an appropriate position downstream of the exhaust path 14. The second DOC 18 oxidizing the unburnt fuel subsequently to an operating valve 17 is arranged on a position downstream of the exhaust manifold 12, and also the other end of the second DOC 18 is connected to an appropriate position upstream of the first DOC 15. <P>COPYRIGHT: (C)2011,JPO&INPIT |
