EXHAUST GAS AFTER TREATMENT DEVICE FOR DIESEL ENGINE

摘要

PURPOSE: An exhaust gas post-treatment apparatus of a diesel engine is provided to prevent exhaust gas from leaking while a retainer supports corresponding covers and a connecting portion of the covers does not sag. CONSTITUTION: An exhaust gas post-treatment apparatus of a diesel engine comprises an oxidation unit, an adsorption unit, and a discharge unit. The oxidation unit comprises a DOC(Diesel Oxidation Catalyst)(14) and a hollow DOC(Diesel Oxidation Catalyst) cover(10). The DOC is inserted into the DOC cover. The adsorption unit is placed in a rear part of the oxidation unit. The adsorption unit comprises a DPF(Diesel Particulate Filter)(24) and a hollow DPF cover(20). The DPF is inserted into the hollow DPF cover. The discharge unit comprises a hollow outlet cover(30) and an end plate(32). Purified exhaust gas is discharged through an outlet(34) of the hollow outlet cover. The end plate covers one side of the hollow outlet cover.