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为提高固体冲压发动机的飞行性能,提出一种新型管道式固体冲压发动机(DSFR)方案,由预燃室和冲压燃烧室组成。因为在预燃室与冲压燃烧室之间不节流,预燃室内的固体燃料在与吸入冲压燃烧室的压缩空气同样的压力下燃烧。飞行性能计算结果证明,飞行距离随飞行高度的增加而大幅度增加。为有效利用新型固体冲压发动机,必须采用压力指数为1的固体燃料。
In order to improve the flight performance of solid ramjet engine, a new pipeline solid ramjet engine (DSFR) scheme is proposed, which consists of a pre-combustion chamber and a ram combustion chamber. Because no throttling occurs between the pre-combustion chamber and the ram-combustion chamber, the solid fuel in the pre-combustion chamber is combusted at the same pressure as the compressed air drawn into the ram-combustion chamber. Flight performance calculation results show that the flight distance increases with the flight altitude increased significantly. In order to effectively utilize the new solid ramjet engine, a solid fuel with a pressure index of 1 must be used.