Development of CAMUI Hybrid Rocket to Create a Market for Small Rocket Experiments

概要

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By introducing various innovative ideas, the difficult-to-develop small hybrid-type rocket is successfullydeveloped. The main purpose is to drastically reduce the cost of rocket experiments and thus attractpotential users such as metrological and microgravity researchers. A key idea is a new fuel grain design toaccelerate the gasification rate of solid fuel. The new fuel grain design, designated as CAMUI as anabbreviation of “Cascaded Multistage Impinging-jet”, is that the gas flow repeatedly collides with the solidfuel surface to accelerate the heat transfer to the fuel. To install a regenerative cooling system usingcryogenic liquid oxygen as coolant in a small launcher, the authors devised a valveless supply system (withno valves in the liquid oxygen flow line). Four serial successful launch verification tests by 10 kg vehicleequipped with a 50 kgf thrust CAMUI motor have shown the feasibility of the motor system. Themeteorological observation model of 400 kgf class motor is under development and the development ofmicrogravity experiment class of 1.5 to 2 tonf motor will follow subsequently. The authors plan to completethe development of the 400 kgf class motor for meteorological observation model by the end of FY2005.
Elsevierの論文