| 摘要 |
It is an object of the present invention of the application to provide an exhaust gas purification device 1 capable of enhancing handling operability such as maintenance of an engine 70. The exhaust gas purification device 1 of the invention of the application includes two gas purification bodies 2 and 3 which purify exhaust gas discharged from the engine 70, inner cases 4 and 20 in which the gas purification bodies 2 and 3 are incorporated, and outer cases 5 and 21 in which the inner cases 4 and 20 are incorporated. The outer cases 5 and 21 are arranged side by side in a moving direction of exhaust gas and connected to each other. One of the adjoining inner cases 4 and 20 is inserted into the other inner case to form a double-layer structure. A loosely-fitting gap 23 is formed between an inner side surface of the one inner case 4 (20) and an outer side surface of the other inner case 20 (4). |
