Cooling structure for gas turbine engine
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsTomoko TSURU, Katsuhiko ISHIDA, Yuwa KAWAHARA
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Abstract
In a structure for cooling a component member of a gas turbine using a working gas, a plurality of heat transfer enhancement ribs having W shapes are provided so as to project from the wall surface of a passage wall facing a cooling medium passage through which a cooling medium flows. In each heat transfer enhancement rib, outside corner portions facing toward the upstream side are formed in an angled shape, and at least any one of inside corner portions and outside corner portions other than the outside corner portion facing toward the upstream side are formed in a curved shape.
Claims6
A cooling structure for a gas turbine engine, for cooling a component member of a gas turbine engine using a working gas of the gas turbine engine as a cooling medium, the gas turbine engine cooling structure comprising:
- a passage wall formed from a part of the component member and facing a cooling medium passage through which the cooling medium flows;
- and
- a plurality of heat transfer enhancement ribs projecting from a wall surface of the passage wall and having W shapes, each heat transfer enhancement rib including adjacent corner wall portions formed so as to protrude alternately toward an upstream side and a downstream side in a flow direction of the cooling medium,
- wherein an outside corner portion, facing toward the upstream side, of each heat transfer enhancement rib is formed in an angled shape, and
- at least any one of an inside corner portion facing toward the upstream side, an outside corner portion facing toward the downstream side, and a inside corner portion facing toward the downstream side, of each heat transfer enhancement rib is formed in a curved shape.
Dependencies are inferred from the claim text.