摘要
本文提出了一种新型的观测研究汽油机燃烧过程的有效方法—光纤传象高速摄影技术。作者采用自行研制的光纤传象内窥光学系统,与高速摄影机配合使用,在汽油机射流燃烧室内成功地拍摄到了射流燃烧室中燃烧过程序列照片,该装置安装、使用方便,只需把内窥摄影物镜拧入燃烧室内,无需改变发动机结构,不必拆卸气缸盖和其它零件。由高速影片上可以清楚地观察到电火花跳火后火焰核心形成及火焰发展传播过程,可以测算出着火延迟,火焰传播速度,燃烧持续时间等参数,为判断和改进燃烧过程提供了可靠的依据。
This paper introduces a new and effective method for combustionresearch in gasoline engines—High Speed Photography with optical fibertransmission image technique.In combination with a high speed camera,aset of optical fiber and endoscopes is worked out by the authors toinvestigate the combustion process in a TJ-Jet combustion chamber of asingle cylinder gasoline engine.It is convenient to use by simply screwingthe endoscopes onto the cylinder head without any change in engineconstruction or disassembly of any engine part.The process of the formation of the flame kernel after ignition sparkdischarge and the flame propagation in the combustion chamber are clearlyshown in the high speed pictures.Parameters,such as the ignition delay,the flame propagation speed,the duration of combustion,etc.,needed for
出处
《内燃机学报》
EI
CAS
CSCD
北大核心
1990年第2期149-156,共8页
Transactions of Csice
