摘要
实测柴油机的燃烧过程 ,分析供油提前角对燃烧始点、最高燃烧压力、缸内最大压力升高率及相位和NOx排放的影响。结果表明 ,供油提前角提前 ,柴油机燃烧始点提前 ,最高燃烧压力增大 ,其相位相应提前 ,最大压力升高率增大 ,NOx 排放增大 ;供油提前角迟后 ,柴油机燃烧始点滞后 ,最高燃烧压力减小 ,其相位相应滞后 ,最大压力升高率减小 ,NOx 排放降低。
The combustion characteristics of a single cylinder,four stroke,direct injection diesel engine are measured and the impact of the fuel supply angle on timing of combustion and peak pressure and pressure rise and characteristics of NO x emission are analyzed.It is found that the cylinder pressure and maximum pressure rise of diesel engine and NO x emissions increase when the fuel supply angle increases.The cylinder pressure and maximum pressure rise of diesel engine decrease and NO x emissions reduce when the fuel supply angle decreases.
出处
《拖拉机与农用运输车》
北大核心
2004年第5期18-20,36,共4页
Tractor & Farm Transporter
基金
国家自然科学基金项目 (50 1 760 1 6)
