| 摘要 |
The present invention relates to an exhaust gas recirculation apparatus for preventing ammonia slip leaking from a post-processing unit from flowing into a suction line, comprising: an engine; a suction line connected to the engine to supply suctioned air; an exhaust line connected to the engine to discharge exhaust gas to the outside; a post-processing unit provided to the exhaust line to reduce hazardous substances contained in the exhaust gas; a first circulation line for re-guiding, to the suction line, a part of the exhaust gas guided to the exhaust line; a second circulation line for re-guiding, to the suction line, a part of the exhaust gas guided to the lower part of the post-processing unit; and a bypass line branched off from an upper side of the second circulation line and combined with a lower side of the second circulation line. |
