【摘要】 对空气和天然气供气系统的 2个参数——进气温度和空燃比进行了发动机试验。空燃比的调节包括进气节流和停缸 2种方式。试验结果表明 ,适当提高进气温度和合适的进气节流量都可以降低 THC和 CO排放 ,但 NOx 排放会增加。在低负荷时采用停缸技术 ,可以很好地改善发动机的排放更多还原

【Abstract】 In the study,engine tests were carried out on two parameters of air and natural gas supply system,which are intake temperature and A/F ratio including intake throttling and skip firing.It was found that increasing intake temperatue appropriately and seemly throttling quantity reduced THC and CO emissions,but increased NO x emission.At lower loads skip firing improved the emissions of the engine commendably.更多还原