Fairing for a combustion chamber end wall
View Patent ↗An annular fairing for covering the annular chamber end wall of a turbomachine combustion chamber, and in particular of an airplane turbojet. The fairing presents openings for passing fuel injectors that are supported by the chamber end wall. The fairing is subdivided into a plurality of adjacent sectors, each sector presenting inner and outer fastener edges capable of being fastened on either side of said chamber end wall. Each sector includes a lip on one of its side edges, which lip is connected to the remainder of the sector by a step, said lip being designed to over the side edge of the adjacent sector.
1. A combustion chamber comprising an inner wall, an outer wall, and in the upstream region of said chamber, an annular chamber end wall disposed between said inner and outer walls, said chamber end wall having an upstream face, this upstream face being covered by a fairing which presents openings adapted for passing fuel injectors that are supported by the chamber end wall, and which is subdivided into a plurality of adjacent sectors, each fairing sector presenting inner and outer fastener edges adapted for being fastened on either side of said chamber end wall, wherein said sectors present side edges, the side edges of two adjacent sectors overlapping in a circumferential direction thereby avoiding circumferential gaps between adjacent sectors.
2. A combustion chamber according to claim 1 , wherein each sector includes, on one of its side edges, a lip connected to the remainder of the sector by a step, said lip being designed to overlap the side edge of an adjacent sector.
3. A combustion chamber according to claim 1 , wherein the inner and outer fastener edges of each sector are each fastened at N fastening points, where N is greater than or equal to 2, and wherein at least N-1 of said fastening points are each constituted by means of a fastener element passed through an oblong hole.
4. A combustion chamber according to claim 1 , wherein the inner and outer fastener edges of each sector are each fastened at a single fastening point, said fastening point being situated outside a zone where the sectors overlap.
5. A combustion chamber according to claim 1 , wherein each fairing sector presents at least one opening enabling at least one fuel injector to pass therethrough.
6. A turbomachine including a combustion chamber according to claim 1 .
7. A combustion chamber according to claim 1 , wherein the chamber end wall has inner and outer fastener rims, the inner and outer fastener edges of the fairing being fastened to the inner and outer fastener rims.