摘要
研究了4G10汽油机在起动过程中喷射二次空气对排气温度和排放的影响规律。试验表明二次空气可以缩短催化器起燃时间,有效地降低冷起动过程中HC和CO排放。选择合适的二次空气流量可将排放降低到最低水平。
The effects of secondary air injection on the exhaust gas temperature and emission of a 4G10 gasoline engine during cold start are studied. Experimental results show that secondary air injection can shorten the light-off time of three-way catalytic converter, and effectively reduce the emissions of HC and CO during cold start. A suitable secondary air flow can reduce the emission to a lowest level
出处
《汽车工程》
EI
CSCD
北大核心
2008年第8期652-656,共5页
Automotive Engineering
关键词
汽油机
冷起动
排放
二次空气喷射
gasoline engine
cold start
emission
secondary air injection
