本文叙述了作者所设计建立的高速纹影摄影光路系统,给出了利用该系统所拍摄的纹影照片,并通过照片简单分析了柴油机缸内的喷雾和燃烧过程。结果表明,纹影技术是研究发动机缸内空气运动和喷雾燃烧过程的有效手段。

The paper reports the schlieren technique apply in investigating combustion processes in a DI diesel engine. The design of the schlieren system and the high speed photo-graph control system are described. The paper analyses effects of the air swirl intensity on the injection fuel and the flame propagation in the cylinder with the aid of photo-graphs. The conclusion is that the schlieren technique is an important method for investigating the combustion processes in I.C engines.