EXHAUST GAS CLEANING DEVICE FOR DIESEL ENGINE

摘要

PROBLEM TO BE SOLVED: To provide an exhaust gas cleaning device for a diesel engine, which can prevent the breakage of a catalyst due to the immersion of a reducer into a bearing member of a catalyst while improving the performance of a NOx reduction purification catalyst.SOLUTION: In an exhaust gas cleaning device for a diesel engine, a retainer 11 erected to extend circumferentially on an inner face 10 of a connection pipe 8B between an injection nozzle 7 of urea water and an upstream side end face 5a of an SCR 5 and the upstream side end face 5a of the SCR 5 are spaced from each other.