| 摘要 |
PROBLEM TO BE SOLVED: To eliminate stress concentration or strain caused by welding in an exhaust emission control device 1.SOLUTION: An engine device includes a structure in which exhaust gas is discharged from a diesel engine 70 to DPF casings 60. Sandwich flanges 51, (52), 53, (54) are provided between a plurality of cases 5, 21, 32 of the cylindrical DPF casing 60, and the plurality of cases 5, 21, 32 are connected to each other by the sandwich flanges 51, (52), 53, (54). In addition, the sandwich flanges 51, (52), 53, (54) are constituted by a plurality of units 51a, 51b (52a, 52b) 53a, 53b (54a, 54b) separated in a circumferential direction of the cases 5, 21, 32 of the cylindrical DPF casing 60. |
