发明名称 |
NOx emission control for a controlled auto-ignition four-stroke internal combustion engine |
摘要 |
A four-stroke internal combustion engine is operated in controlled auto-ignition mode by any of a variety of valve control strategies conducive to controlled auto-ignition conditions in conjunction with in-cylinder fuel charges that are at either stoichiometric or lean of stoichiometric air-fuel ratios. A measure of engine NOx emission is provided and when it crosses a predetermined threshold, the in-cylinder fuel charge is transitioned from the operative one of the stoichiometric or lean of stoichiometric air-fuel ratios to the inoperative one of the stoichiometric or lean of stoichiometric air-fuel ratios.
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申请公布号 |
US7228839(B2) |
申请公布日期 |
2007.06.12 |
申请号 |
US20050172505 |
申请日期 |
2005.06.30 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
KUO TANG-WEI;NAJT PAUL M.;ENG JAMES A.;BROWN BARRY L.;CHANG CHEN-FANG;KANG JUN-MO |
分类号 |
F01L1/34;F02B3/00;F02M25/07 |
主分类号 |
F01L1/34 |
代理机构 |
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地址 |
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