Abstract
A single lightweight engine capable of operating over a wide range of Mach numbers from startup to the hypersonic condition was proposed in our previous reports (Naitoh et al, AIAA paper 2012, Naitoh, submitted as patents, 2010, 2011). This ultimate engine has the new compression system based on colliding super multi pulse jets instead of a traditional turbofan. Computational fluid dynamics shows that this system results in stable compression and combustion. Then, we organize a rotating flat plate, wind tunnel system, supermulti-jets colliding system, combustion chamber, and fuel injection system controlled electrically within the error less than 5.0% for injection amount and then, through fundamental combustion test, we examine whether compression system based on colliding super multi pulse jets is effective or not. We take photographs by varying the temperature of the glow plug. As a result, we get that the critical ignition temperature of glow will be 142℃ for the present prototype engine at a very low inlet Mach number.
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