Patent ID: 8069669

Claim:
An annular combustion chamber comprising: a radially inner wall; an inner flange; and a separator disposed between the radially inner wall and the inner flange, said separator including a tubular portion and a fastener portion, the tubular portion being centered on a main axis of said combustion chamber and having an upstream end that is situated upstream from orifices in said radially inner wall of the chamber, and the fastener portion being secured to said combustion chamber, wherein said inner flange extends from a downstream part of the radially inner wall inwards towards the main axis and then upstream such that said inner flange is coaxial with the radially inner wall, and a radius of said inner flange is smaller than a radius of the radially inner wall, and wherein said upstream end of said tubular portion splits a flowsection situated between said radially inner wall of the chamber and said inner flange into an inner annular flowsection and an outer annular flowsection such that the flow of air passing along the radially inner wall is split into an inner air flow passing between said tubular portion and said inner flange of said chamber, and an outer air flow passing between said radially inner wall and said tubular portion, and wherein said tubular portion is substantially parallel to said radially inner wall of said chamber such that said outer annular flowsection is of substantially constant cross-section.