发明名称 |
DUAL PATH AFTERTREATMENT SYSTEM AND METHOD UTILIZING FUEL AS AN ON-BOARD REDUCTANT FOR NOx SCR |
摘要 |
A system and method for utilizing fuel as an on-board reductant for selective catalytic reduction of NOx is provided and includes a controller for controlling an engine to produce a lean first exhaust stream and a rich second exhaust stream that are received in respective first and second passageways of a dual path aftertreatment system. The rich second exhaust stream reacts with NOx stored in a NOx storage and reduction catalyst of the second passageway to regenerate this catalyst and generate ammonia. The first exhaust stream and the second exhaust stream having the generated ammonia are combined in a downstream common passageway to form a combined lean exhaust gas stream where the ammonia carried therein is stored or used by an SCR catalyst of the common passageway for NOx reduction. The engine is subsequently controlled to produce a rich first exhaust stream and a lean second exhaust stream. |
申请公布号 |
WO2016130634(A1) |
申请公布日期 |
2016.08.18 |
申请号 |
WO2016US17278 |
申请日期 |
2016.02.10 |
申请人 |
FCA US LLC |
发明人 |
SMITH, Michael A.;DIMAGGIO, Craig L.;WUTTKE, Jeffrey P.;BROCKER, Andrew;HAMILTON, Travis T.;HARDMAN, Ken;BALDWIN-SQUIB, Cody |
分类号 |
F01N3/20;F01N3/08;F01N3/10;F01N13/00;F01N13/04;F01N13/10 |
主分类号 |
F01N3/20 |
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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