Patent ID: 8516807

Claim:
An engine having an exhaust gas treatment apparatus attached thereto, wherein the exhaust gas treatment apparatus 4 is supported by an engine body 1 and the engine body 1 and the exhaust gas treatment apparatus 4 communicate with each other through an exhaust pipe 13 , the engine comprising: a casing of the exhaust gas treatment apparatus 4 comprising a plurality of casing units 5 , 6 , and 7 separable from each other; and connection flanges 8 , 9 , 10 , and 11 disposed in respective end portions of the casing units 5 , 6 , and 7 , wherein the casing units 5 , 6 , and 7 are coupled together by a connection of the connection flanges 8 , 9 , 10 , and 11 , the exhaust gas treatment apparatus 4 is supported by the engine body 1 through the connection flanges 8 , 9 , 10 , and 11 , pull-up protrusions 34 and 35 are installed in the connection flanges 8 and 9 of a DPF accommodation casing unit 5 and externally more protruded than the connection flanges 10 and 11 of an exhaust inlet-side casing unit 6 and an exhaust outlet-side casing unit 7 in a diameter direction, and pull-up locking units 36 and 37 of the DPF accommodation casing unit 5 are installed in the pull-up protrusions 34 and 35 .