Multihole patch for combustor liner of a gas turbine engine
AssigneeGeneral Electric Company
InventorsGeorge Eric Moertle, Bruce Ernest Mills, James Patrick Holmes, David Albin Lind, Tariq Kay Harris
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Abstract
A liner for a combustor of a gas turbine engine, including a shell having a first end adjacent to an upstream end of the combustor and a second end adjacent to a downstream end of the combustor, wherein at least one discrete region is subject to distress from impingement of hot gases, a plurality of cooling slots formed in the shell through which air flows for providing a cooling film along a hot side of the shell, and a group of cooling holes formed in the shell in the discrete region to augment the cooling film and provide convective bore cooling to the discrete region.
Claims20
A liner for a combustor of a gas turbine engine, comprising:
- (a) a shell having a first end adjacent to an upstream end of said combustor and a second end adjacent to a downstream end of said combustor, wherein at least one discrete region is subject to distress from impingement of hot gases;
- (b) a plurality of cooling slots formed in said shell through which air flows for providing a cooling film along a hot side of said shell;
- and
- (c) a group of cooling holes formed in said shell at said discrete region to augment said cooling film and provide convective bore cooling to said discrete region.
A liner for a combustor of a gas turbine engine, comprising:
- (a) a shell having a first end adjacent to an upstream end of said combustor and a second end adjacent to a downstream end of said combustor, wherein at least one discrete region is subject to distress from impingement of hot gases;
- (b) a plurality of first cooling holes formed in said shell through which air flows for providing a cooling film along a hot side of said shell;
- and
- (c) a group of second cooling holes formed in said shell in said discrete region to augment said cooling film and provide convective cooling to said discrete region, wherein said second cooling holes are formed as a plurality of rows from an upstream row to a downstream row so that cooling holes in said downstream row are greater in size than cooling holes in said other rows.
Dependencies are inferred from the claim text.