介绍采用高速摄影技术研究直喷式增压柴油机的燃烧过程。研究工作在单缸柴油机上进行。研究结果表明 ,进气增压改善了柴油机燃烧过程 ;促进了燃油和空气的混合 ,增加了燃油油束向燃烧室中心的扩展区域 ,壁面附近燃油堆积量减小 ;缩短了着火延迟期 ,增加了扩散燃烧的比例 ,火焰扩展速度降低 ;改善了燃烧室内的燃烧条件 ,抑制了燃烧火焰向活塞顶部外溢 Introduced the use of high-speed photography technology research direct injection turbocharged diesel combustion process. Research work on a single cylinder diesel engine. The results show that intake pressurization improves the combustion process of diesel engine, promotes the mixing of fuel and air, increases the expansion area of ​​fuel oil bundles to the center of the combustion chamber, reduces the accumulation of fuel near the wall, shortens the ignition delay period and increases The ratio of diffusion combustion reduces the flame spread speed, improves the combustion conditions in the combustion chamber, suppresses the combustion flame from spilling to the top of the piston