高超声速飞行时,超燃冲压发动机面临非常恶劣的热环境,在现有的航空航天材料下,整个发动机都需要在有主动冷却的情况下才能正常工作。因此,对超燃冲压发动机的主动冷却研究是超燃冲压发动机技术中要解决的一项重要技术。介绍了常用的冷却技术,分析了再生冷却技术在超燃冲压发动机中应用的优越性,描述了再生冷却技术的研究进展。 In hypersonic flight, the scramjet faces a very harsh thermal environment, and with existing aerospace materials, the entire engine needs to function properly with active cooling. Therefore, the research on active cooling of scramjet is an important technology to be solved in scramjet technology. The commonly used cooling technology is introduced. The advantages of regenerative cooling technology in scramjet are analyzed. The research progress of regenerative cooling technology is described.