Diesel engine

摘要

It is an object of the present invention to provide a diesel engine in which an engine body 1, a DPF case 2 and an SCR catalyst case 3 can be placed compactly. In the diesel engine including the engine body 1, the DPF case 2 and the SCR catalyst case 3, a DPF 4 is accommodated in the DPF case 2 and an SCR catalyst 5 is accommodated in the SCR catalyst case 3, the DPF case 2 and the SCR catalyst case 3 are mounted on the engine body 1, the DPF case 2 is supported by the engine body 1 through an exhaust gas introducing pipe 2a, and the SCR catalyst case 3 is supported by the DPF case 2 through an exhaust gas relay pipe 8.