| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an exhaust emission control device preventing rise in the engine cooling water temperature, even if the exhaust gas temperature is raised, when regenerating a DPF. <P>SOLUTION: The DPF 18 is connected to an engine 10, and the exhaust emission control device controls emissions of exhaust gas by collecting particulate matters in the exhaust gas with the DPF 18. A cooling fan 36 for a radiator 38, which is controllable from the outside, is attached to the engine 10. When forced regeneration of the DPF, the cooling fan 36 is raised to a target rotation speed and then by adding a post injection to multiple injections in an injection pattern, exhaust gas temperature during DPF regeneration is raised to 600°C; and rise in an engine cooling water is inhibited. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
