CAJ | 학술논문

介绍了CFM56‐5B发动机的起动过程以及高高原地区起动时常出现的故障，如起动悬挂、热起动、发动机超温，这些故障会损伤发动机热端部件，缩短发动机的使用寿命。根据离心式喷嘴的雾化原理和发动机原理，结合高高原地区气压低、含氧量少的特点，分析出了在现有EC U 起动逻辑下，燃油雾化质量差，剩余功率不足，富油燃烧，这些都是造成起动困难的重要原因。
개소료CFM56‐5B발동궤적기동과정이급고고원지구기동시상출현적고장，여기동현괘、열기동、발동궤초온，저사고장회손상발동궤열단부건，축단발동궤적사용수명。근거리심식분취적무화원리화발동궤원리，결합고고원지구기압저、함양량소적특점，분석출료재현유EC U 기동라집하，연유무화질량차，잉여공솔불족，부유연소，저사도시조성기동곤난적중요원인。
This paper elaborates the starting process of CFM56‐5B engine and the faults occur when the en‐gine starts in high‐plateau area ,such as hung start ,hot start ,over‐temperature ,which will damage the engine hot section and shorten its service life .The paper analyzes the cause leading to the cold engine diffi‐culty in starting by studying the principle of pressure‐swirl atomizer ,aviation engine principle and the ex‐isting starting logic of ECU .The difficulty mainly results from the poor quality of fuel atomization ,and lack of remaining power ,oil‐rich burning at the high‐plateau which features low air pressure and oxygen deficiency .