Abstract: The mechanism of the seal ring of a turbojet engine was discussed The structure design,mechanical performance,material and manufacture choosing for the seal ring were studied particularly The results of engine tests show that the seal ring is conformed to the requirement of the engine design

Key words: Turbojet engine;Seal ring;Structure design;Mechanical performance

摘要： 简要论述了某涡喷发动机密封环在发动机中的工作原理， 结合发动机的研制， 阐明了密封环结构设计、机械性能计算、材料选择、制造加工方法。研制的密封环， 经发动机各项试验考核， 寿命和密封可靠性均符合涡喷发动机总体设计要求。

关键词: 涡轮喷气发动机;密封环;结构设计;机械性能