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基于柴油机喷雾燃烧可视化方法,在DLH1105型产品发动机的基础上进行了发动机的改装、光路系统的开发和数据采集及控制系统的开发,研制出喷雾燃烧多功能动态可视化试验装置.同时总结出试验装置建立过程中应该注意的一些关键问题.在该试验装置上,分别对25MPa和18MPa的喷油压力下以及62mm圆柱形、55mm圆柱形、55mm圆柱左偏斜形、55mm圆柱右偏斜形4种燃烧室形状下的喷雾燃烧过程进行了喷雾燃烧可视化试验,获得了喷雾燃烧照片,通过对比分析得出高喷油压力及偏斜形状燃烧室具有更优的喷雾燃烧特性.
Based on the diesel spray combustion visualization method, the engine retrofit, optical system development and data acquisition and control system development were carried out on the basis of the DLH1105 engine, and a multi-function dynamic visual test apparatus for spray combustion was developed. At the same time, Some key problems should be noticed in the process of establishing.In this experimental device, the left bias of 圆55mm cylinder and the right 偏55mm cylinder of 55mm cylinder, 55mm cylinder, The spray combustion experiment was carried out in the process of spray combustion under four oblique combustion chamber shapes. The spray combustion photograph was obtained. Through comparative analysis, it was found that the high injection pressure and skewed combustion chamber had better spray combustion characteristics.