| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust emission control device allowing easy assembling without wrongly setting directions of cases when the respective cases are disassembled. <P>SOLUTION: The exhaust emission control device is provided with the case 4 in which a soot filter 41 for exhaust gas purification is contained and the other cases joined to the case 4 upstream and downstream in the direction of an exhaust gas flow wherein the case 4 in which the soot filter 41 is contained is spigot-joined to an inner surface of either of the upstream case and the downstream case and spigot-joined to an outer surface of the other case, so that a heat insulation ring 9B arranged at an inlet side of the case 4 can be spigot-joined to an inner surface side of the upstream side case, and assembling can be easily performed without wrongly setting the direction of the case 4. <P>COPYRIGHT: (C)2010,JPO&INPIT |
