AFTERTREATMENT DEVICE OF INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To provide an aftertreatment device of an internal combustion engine capable of well performing NOx purge and forced regeneration to sufficiently develop exhaust emission performance by efficiently using a light oil injected by a light oil adding injector in the aftertreatment device so formed as to add the light oil.

SOLUTION: An enlarged pipe part 20 is formed in an exhaust pipe 18 between the aftertreatment device 30 and the light oil adding injector 40. A cylindrical oxidation catalyst 22 having a hollow part 22a is installed in the enlarged pipe part.

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