Science and Technology of Energetic Materials

Vol.68, No.3 (2007)

Research paper

The combustion characteristics of the solid fuel for a hybrid ramjet engine (*in Japanese)
Ichiro Nakagawa


A hybrid-ramjet uses liquid fuel and solid fuel. The high ignitability of the secondary combustion and high combustion stability which a solid fuel ramjet (a ducted rocket) has, and the high Isp performance and the wide fuel flow control range which a liquid fuel ramjet has are expected on this engine. The liquid fuel is injected into the secondary burning region of the gasificated solid fuel. That is why the secondary combustion characteristics depend on that of the mode using only solid fuel. Solid fuels, which contain B, were made. It is considered suitable material for a hybrid ramjet engine solid fuel. And combustion tests were conducted with them using only solid fuel. Both primary combustion and secondary combustion characteristics are good. The secondary combustion efficiency was improved by the air induction method change etc.

> Full text (Open access*)


Hybrid, Ramjet, Isp, Fuel composition

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