发明名称 |
EXHAUST GAS RECIRCULATION APPARATUS AND CONTROL METHOD THEREFOR |
摘要 |
An exhaust gas recirculation apparatus including an engine; a suction line; an exhaust line; a post-processing unit which is disposed in the exhaust line to reduce hazardous substances contained in the exhaust gas; a first circulation line which guides a part of the exhaust gas, which is guided to the exhaust line, to the suction line; a second circulation line which guides a part of the exhaust gas, which is guided to a downstream side of the post-processing unit, to the suction line; and a bypass line which branches off from an upstream side of the second circulation line, and merges with a downstream side of the second circulation line, wherein ammonia slip, which is discharged from the post-processing unit, is prevented from being guided to the suction line. |
申请公布号 |
US2015337772(A1) |
申请公布日期 |
2015.11.26 |
申请号 |
US201314654754 |
申请日期 |
2013.12.09 |
申请人 |
DOOSAN INFRACORE CO., LTD. |
发明人 |
LIM Ji Hoon |
分类号 |
F02M25/07;F02D21/08 |
主分类号 |
F02M25/07 |
代理机构 |
|
代理人 |
|
主权项 |
1. An exhaust gas recirculation apparatus comprising:
an engine; a suction line which is connected to the engine to supply suctioned air; an exhaust line which is connected to the engine to discharge exhaust gas to the outside; a post-processing unit which is disposed in the exhaust line to reduce hazardous substances contained in the exhaust gas; a first circulation line which guides a part of the exhaust gas, which is guided to the exhaust line, to the suction line; a second circulation line which guides a part of the exhaust gas, which is guided to a downstream side of the post-processing unit, to the suction line; and a bypass line which branches off from an upstream side of the second circulation line, and merges with a downstream side of the second circulation line, wherein ammonia slip, which is discharged from the post-processing unit, is prevented from being guided to the suction line. |
地址 |
Dong-gu Incheon KR |