Deflection mitigation structure for combustion system
AssigneeGeneral Electric Company
InventorsAnthony Joseph Venzon, Jeremy Kevin Payne, Narendra Kumar Patel
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Abstract
A combustion section for a gas turbine engine including an inner casing comprising a first material defining an inner diameter of a pressure vessel and a first heat transfer coefficient. A second material is extended at least partially over an outer diameter of the first material. The second material is disposed radially between the first material and a combustor liner. The second material defines a second heat transfer coefficient less than the first heat transfer coefficient.
Claims20
A combustion section for a gas turbine engine, the combustion section comprising:
- a combustor and a combustor casing, the combustor casing defined by an outer casing radially outward from an inner casing;
- the combustor defined by an inner liner disposed radially inward from the outer casing and an outer liner disposed radially between the outer casing and the inner line;
- and, an inner casing extending at least partially radially inward from the outer casing such that the combustor is at least partially radially enclosed between the inner casing and the outer casing, the inner casing comprising a first material having a first heat transfer coefficient, wherein a second material is extended at least partially over an outer diameter of the first material such that the second material is disposed radially between the first material and the inner liner, the second material spaced apart from the inner liner, and further wherein the second material defines a second heat transfer coefficient less than the first heat transfer coefficient.
A method for reducing a thermal gradient between an inner casing of a combustion section having a combustor and a combustor casing, the combustor casing defined by an outer casing radially outward from the inner casing, the method comprising:
- forming a second material over an outer diameter of a first material defining the inner casing and having a first heat transfer coefficient, wherein the second material defines a second heat transfer coefficient less than the first heat transfer coefficient, wherein the combustor is defined by an inner liner disposed radially inward from the outer casing and an outer liner disposed radially between the outer casing and the inner liner, wherein the inner casing extends at least partially radially inward from the outer casing such that the combustor is at least partially radially enclosed between the inner casing and the outer casing, and wherein the second material is spaced apart from the inner liner.
Dependencies are inferred from the claim text.