Patent ID: 7065954

Claim:
A combustion chamber for a high-speed, relatively low-power turbine engine, said combustion chamber comprising: a wall dividing said chamber into a hot region and a cold region, said cold region at least partially surrounding said hot region and adapted for receiving a carburetant gas at a pressure, primary inlet means for admitting said carburetant gas from said cold region into said hot region and means for injecting fuel into said hot region for mixing with said gas therein to produce a mixture which, upon ignition, generates a flame front expanding towards said cold region; the improvement whereby said combustion chamber further includes: passage means for admitting a secondary flow of relatively cool gas from said cold region into said hot region, said passage means comprising a plurality of orifices circumferentially distributed around said wall at a predetermined distance from said fuel injecting means, said orifices communicating said hot region with said cold region, and obstruction members partially surrounding said orifices towards said ignition means for generating a vortex in said secondary gas flow in said hot region for confining penetration of said flame front into said cold region.