冲压发动机的转级技术是各类超声速、高超声速飞行器研制所面临的一类技术难题。为了系统性地研究冲压发动机转级技术的研究现状,总结了冲压发动机在转级过程气动方案设计、进气道流动分析、转级时序设计等方面所面临的关键技术问题,综述了国内外研究进展情况,在此基础上指出了当前在超燃冲压发动机转级技术研究、转级过程数值仿真、地面试验等方面存在的不足,对后续研究工作进行了展望。 Stamping engine technology is the transition of various types of supersonic, hypersonic vehicle development is faced with a class of technical problems. In order to systematically study the status quo of ramjet technology, the paper summarizes the key technical issues of ramjet in terms of aerodynamic scheme design, inlet flow analysis, On the basis of this, it points out the shortcomings of the current researches on the scramjet technology, the numerical simulation of the transition process and the ground test. The future research work is also prospected.