摘要
对某单缸柴油机的喷油泵、喷油嘴及高压油管内径等燃油喷射系统参数进行了优化设计,并进行了喷油特性及柴油机排放对比试验,对比试验结果表明:优化方案提高了燃油喷射系统燃油喷射压力,最大喷射压力增大到63.6 MPa,提高了44.5%,从而有效改善了燃油的雾化性能与燃烧过程,整机排放性能得到了明显改善,排放指标满足非道路柴油机国三排放标准要求,且具有较高裕度。
Several important factors such as the fuel injection pump, the nozzle and the high-pressure fuel pipe on a single cylinder diesel engine were optimized . The comparison tests results of injection character and the diesel engine emission showed that the pres- sure of the fuel injection system was increased by the optimal scheme. The highest pressure increased to 63.6 MPa , improved 44. 5%. The fuel atomization performance and combustion process were improved. The emission performance with optimal scheme ob- viously improved which meets China 3 non-road diesel engine emission standards and has a large margin.
出处
《现代车用动力》
2016年第3期18-21,共4页
Modern Vehicle Power
关键词
单缸柴油机
国三排放
燃油喷射系统
喷油特性
优化设计
single cylinder diesel engine
China 3 emission standards
fuel injection system
injection character
optimal design
