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AssigneeSnecma
InventorsDidier Hippolyte HERNANDEZ, Thomas Oliver Marie Noel
Estimating the term…
The present invention relates to an annular combustion chamber for a gas turbine engine comprising an external wall, an internal wall, a wall connecting these two walls and constituting a chamber end wall, the chamber end wall being provided with openings for the fuel injection systems, heat shielding deflectors being fixed to the wall, the deflectors comprising a flat wall portion with an opening centered on said openings for the fuel injection systems, two longitudinal edges and two transverse edges, wherein, at least along one of the longitudinal edges, a deflector comprises a tongue forming a joint cover, creating a housing along said edge for the edge of the adjacent deflector so as to seal the join between the two adjacent edges of the two deflectors, said tongue being spaced away from the chamber end wall so as to create a space supplied with cooling air via orifices in the chamber end wall.
An annular combustion chamber for a gas turbine engine comprising an external wall, an internal wall, a wall connecting these two walls and constituting a chamber end wall, the chamber end wall being provided with openings for the fuel injection systems, heat shielding deflectors being fixed to the wall, the deflectors comprising a flat wall portion with an opening centered on said openings for the fuel injection systems, two longitudinal edges and two transverse edges, wherein, at least along one of the longitudinal edges, a deflector comprises a tongue forming a joint cover, creating a housing along said edge for the edge of the adjacent deflector so as to seal the join between the two adjacent edges of the two deflectors, said tongue being spaced away from the chamber end wall so as to create a space supplied with cooling air via orifices in the chamber end wall.
The combustion chamber as claimed in the preceding claim, in which the shoulder creates a gap between the chamber end wall and the joint cover in the region lying between two adjacent openings for the systems for injecting fuel into the combustion chamber.
The combustion chamber as claimed in one of the preceding claims, in which the transverse edges of the deflectors comprise a curved wall portion, the housings also being created along the longitudinal edges of said curved portion.
The combustion chamber as claimed in one of the preceding claims, in which the deflectors comprise a joint cover along a longitudinal edge and an edge without a joint cover along the other longitudinal edge, the two edges complementing one another so as to fit onto an edge of another like deflector positioned edge to edge with it.
A combustion chamber of which a proportion of the deflectors comprises two longitudinal edges that complement the joint covers of the deflectors of the preceding claim.
A gas turbine engine comprising a combustion chamber as claimed in any one of the claims.
Dependencies are inferred from the claim text.