Gas turbine engine combustor
AssigneeROLLS-ROYCE plc
InventorsRichard P. North, Christopher P. Madden, Christopher S. Parkin
Life of this patent
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Abstract
A gas turbine engine combustor comprises a combustion chamber the walls of which have a plurality of holes extending therethrough for the flow of cooling air into the interior of the chamber. The holes are so configured and arranged that cooling air is exhausted from them in a flow direction which is normal or oblique to the general direction of gas flow through the chamber and oblique to the portion of the chamber wall local thereto.
Claims5
A gas turbine engine combustor comprising a combustion chamber having an axis and being defined by walls which, in operation, contain the combustion process and separate the process from a region of pressurized cooling air, said walls having a first set and a second set of holes with said holes of said first set being of larger diameter than the holes of said second set, said combustion chamber having an upstream end and a cylindrical portion extending from said upstream end and about said axis, said holes of said first set being located adjacent said upstream end of said combustion chamber and said holes of said second set being distributed about said axis of said combustion chamber in said cylindrical portion of said combustion chamber and over a major portion of said combustion chamber, said holes of said second set being so configured and arranged as to direct cooling air as a film into said combustion chamber in a flow direction which is generally normal to the general direction of gas flow and said axis within said combustion chamber and oblique to the portion of the combustion chamber wall local thereto.
Dependencies are inferred from the claim text.