Patent ID: 7788929

Claim:
A turbomachine combustion chamber comprising a chamber end wall presenting a plurality of air and fuel injector devices, each of said devices comprising a bowl and a deflector mounted on a main axis forming a heat shield disposed around said bowl, said bowl flaring in the gas flow direction and possessing an annular portion, with the interface between said bowl and said deflector being situated on said annular portion, wherein at least a portion of said interface is situated towards the end of said annular portion that is upstream in the gas flow direction, and wherein an annular cavity is defined between said deflector and said annular portion downstream from said interface, first bowl holes being formed through said annular portion to open out in register with an edge of said chamber end wall, said edge being in contact with a root of said deflector, said first holes enabling a sustained flow of air from upstream to downstream in said annular cavity, the air entering said annular cavity by passing through the first holes and coming to impact directly from said first holes against the root of the deflector in contact with said edge of said end wall.