| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an exhaust emission treatment device for a diesel engine having high exhaust gas sealing performances of a case connection part and high durability of the case connection part. <P>SOLUTION: In this exhaust emission treatment device for the diesel engine, a DOC 1 is held in a DOC case 2, a DPF 3 is held in a DPF case 4, and a DOC case outlet side end part 6 and a DPF case inlet side end part7 are detachably connected. In the exhaust emission control device, a diameter of the DOC case outlet side end part 6 is set larger than a diameter of the DPF case inlet end part 7, the DOC case outlet side end part 6 is internally fitted in the DPF case inlet end part 7, the adjacent DOC case outlet end part 6 and DOC case middle side part 6a are formed in a same diameter without steps, and the adjacent DPF case inlet end part 7 and DPF case middle side part 7a are formed in a same diameter without steps. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
