发明名称 |
EXHAUST SYSTEM HAVING AMMONIA SLIP CATALYST IN EGR CIRCUIT |
摘要 |
An exhaust system for a vehicular lean burn internal combustion engine that emits oxides of nitrogen (NOx) and particulate matter (PM) is disclosed. The system comprises a NOx reduction catalyst for reducing NOx in the presence of a nitrogenous reductant, means for introducing the nitrogenous reductant into a flowing exhaust gas, a filter for removing PM from exhaust gas flowing in the exhaust system and a low pressure exhaust gas recirculation (EGR) circuit for connecting the exhaust system downstream of the filter to an air intake of the engine. The EGR circuit comprises an ammonia oxidation catalyst. |
申请公布号 |
EP2683468(A1) |
申请公布日期 |
2014.01.15 |
申请号 |
EP20120711446 |
申请日期 |
2012.02.21 |
申请人 |
JOHNSON MATTHEY PUBLIC LIMITED COMPANY |
发明人 |
CHANDLER, GUY, RICHARD;COLLINS, NEIL, ROBERT;PHILLIPS, PAUL, RICHARD |
分类号 |
F02M26/35;B01D53/94;B01J23/42;B01J23/44;B01J23/63;B01J29/76;B01J37/02;F01N3/035;F01N3/10;F01N3/20 |
主分类号 |
F02M26/35 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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