发明名称 |
METHOD AND APPARATUS FOR MANAGING AN EXHAUST GAS FEEDSTREAM FOR A SPARK-IGNITION DIRECT-INJECTION ENGINE |
摘要 |
<p>The disclosure sets forth operating a spark-ignition, direct-fuel injection internal combustion engine equipped with an exhaust aftertreatment system including a lean-NOx reduction catalyst upstream of a second converter element. The engine preferentially operates in one of a homogeneous charge combustion mode and a stratified charge combustion mode based upon temperature of the lean-NOx reduction catalyst. Exhaust gas flow is selectively diverted to the second converter element.</p> |
申请公布号 |
WO2009099817(A2) |
申请公布日期 |
2009.08.13 |
申请号 |
WO2009US32179 |
申请日期 |
2009.01.28 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
CLEARY, DAVID, J. |
分类号 |
F01N3/28;F01N3/10;F01N3/18;F01N9/00 |
主分类号 |
F01N3/28 |
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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