Patent ID: 8096134

Claim:
An annular combustion chamber for a gas turbine engine comprising: an external wall; an internal wall; a chamber end wall connecting the external and internal walls, the chamber end wall being provided with openings for fuel injection systems; and heat shielding deflectors being fixed to the chamber end wall, each of the deflectors comprising a flat wall portion with an opening centered on said openings for the fuel injection systems, first and second longitudinal edges, and first and second transverse edges, the opening is bordered by a flange extending in an upstream direction, wherein the deflector includes a tongue along the first longitudinal edge from the first transverse edge to the second transverse edge, the tongue extending in a circumferential direction and forming a joint cover so as to create a housing along said first longitudinal edge for a second longitudinal edge of an adjacent deflector so as to seal the joint cover between the two adjacent longitudinal edges of the two deflectors, wherein the flange includes a shoulder with an upstream face which abuts against a downstream face of the chamber end wall and a free end of the flange extending in the upstream direction which passes through the openings in the chamber end wall such that said tongue is spaced away from the chamber end wall so as to create a space supplied with cooling air via orifices in the chamber end wall.