发明名称 |
EXHAUST GAS TREATMENT SYSTEM INCLUDING A FOUR-WAY CATALYST AND UREA SCR CATALYST AND METHOD OF USING THE SAME |
摘要 |
The present invention is directed towards methods and systems for treatment of exhaust gas from an engine. In one embodiment, an exhaust gas treatment system for a diesel engine includes a four-way catalyst in fluid communication with a diesel engine to receive an exhaust gas flow therefrom, the four-way catalyst comprising a lean nitrogen oxides (NOX) trap and a diesel particulate filter (DPF). The system also includes a urea selective catalytic reduction (U-SCR) catalyst in fluid communication with the four-way catalyst to receive the exhaust gas flow therefrom. |
申请公布号 |
US2010242448(A1) |
申请公布日期 |
2010.09.30 |
申请号 |
US20090411822 |
申请日期 |
2009.03.26 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
MITAL RAHUL |
分类号 |
F01N9/00;F01N3/035;F01N11/00 |
主分类号 |
F01N9/00 |
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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