Fire test on a gas-gas injector with hydrogen-rich/oxygen-rich gas

To investigate the key technology for full flow staged combustion engine, the oxygen-rich(O-rich) preburner, the hydrogen-rich(H-rich) preburner, the gas-gas injector combustor with the gas dynamic resonance ignitor were designed. The gas-gas combustion experiment used a coaxial shear injector was performed. The results show that the experimental scheme is rational and the system is reliable. The maximum combustion efficiency is up to 97.1%. The heat load of the combustor is increased and the combustion efficiency is decreased with the increasing of the oxygen-rich gas pressure drop.