Abstract: In earth/orbit transportation systems,airbreathing propulsion appears to be an ex-cellentchoice.Combined cycle engines(airbreathing/rocket)concept have been examined now.The recent developments of airbreathing/rocket synergic design, scramjets are discussed.

Key words: Space propulsion;Compound engines;Supersonic combustion ramjet engine;Aerospace plane;Technique

摘要： 吸气式推进技术在天地往返运输系统中占有重要的地位。近来,为了提高运输系统的性能,降低研制成本,国内外进行了一系列吸气式/火箭组合循环发动机的概念研究和基础研究。本文简要地介绍了最近的研制活动,以及火箭-冲压组合方案的各种协同设计方面的进展。最后,提出了建立“组合循环推进系统”概念的建议。

关键词: 航天推进;混合式发动机;超音速燃烧冲压式喷气发动机;航空航天飞机技术