Patent ID: 7707834

Claim:
A diffuser for a single-head annular combustion chamber, the diffuser comprising: a separator configured to split the flow of air leaving a compressor into two annular diffusion streams, the separator being formed by a thin sheet connected by structural arms to inner and outer circularly-symmetrical walls of the diffuser, wherein a diffuser angle of each diffusion stream defined between said thin sheet in the diffuser and the inner and outer walls of the diffuser is about 12 degrees to 13 degrees, wherein a total diffuser angle defined by the inner and outer walls of the diffuser is substantially equal to the sum of the diffuser angles of the diffusion streams, wherein both annular diffusion streams exiting from the diffuser feed a single row of fuel injectors which are disposed on an extension of a surface defined by a downstream end portion of the separator and which are oriented relative to the longitudinal axis of the single-head annular combustion chamber substantially in the same manner as said downstream end portion of the separator, and wherein each fuel injector includes a central axis, and said central axis intersects the downstream end portion of the separator.