| 摘要 |
PROBLEM TO BE SOLVED: To improve maintainability of an exhaust emission control unit and to prevent water from being infiltrated to the inside of a heat insulation cover.SOLUTION: The heat insulation cover comprises: a horizontal piping cover 18 that is mounted in a portion of an exhaust emission control unit 1 at a vehicle front side; and a lower piping cover 15 that is detachably mounted in a portion of the exhaust emission control unit 1 at a vehicle rearer-side than the horizontal piping cover 18. A vehicle rear-side end of the horizontal piping cover 18 is covered by a vehicle front-side end of the lower piping cover 15. In a portion of the lower piping cover 15 that is covered by the horizontal piping cover 18, a rib 180B that protrudes closer to the horizontal piping cover 18 is formed in a direction that crosses a longitudinal direction of a vehicle. In the horizontal piping cover 18, a groove 18B in which the rib 180B is fitted is formed along the rib 180B.SELECTED DRAWING: Figure 4 |
