本文就直喷式柴油机与各种燃烧室相配合的燃油射流研究提出了一种简便可行的模拟试验装置,并研究了燃油喷射到作为介质的煤油中去的各种现象。通过高速摄影可获得试验结果的清晰照片。利用这一技术,可初步分析燃油的自由射流,沿壁或空间混合等的特性,在此推荐了用图解法估算燃油喷射于煤油介质中的慢速渗透。 In this paper, a research on a simple and feasible simulation test device for a fuel jet matching a direct injection diesel engine with various combustion chambers is presented. Various phenomena of fuel injection into the kerosene as a medium are studied. A clear picture of the test results is obtained through high-speed photography. Using this technique, a preliminary analysis of the characteristics of free jet fuel, mixed along the wall or space, where the slow penetration of fuel injected into the kerosene medium by a graphical method is recommended.