Component for a gas turbine engine with a film hole
AssigneeGeneral Electric Company
InventorsAaron Ezekiel Smith, Metodi Blagoev Zlatinov, Thomas Earl Dyson
Life of this patent
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Abstract
A component is provided and comprises at least one wall comprising a first and a second surface. At least one film cooling hole extends through the wall between the first and second surfaces and has an outlet region at the second surface. The film cooling hole includes a first expansion section being a side diffusion portion and a second expansion section being a layback diffusion portion, wherein the side diffusion portion is upstream and spaced from the layback diffusion portion.
Claims18
A component for a gas turbine engine comprising:
- a hot side exposed to a hot air flow;
- a cool side exposed to a cooling air flow;
- a film hole passage extending between the cool side and the hot side with an inlet on the cool side and an outlet on the hot side, the film hole passage defining a diameter, the film hole passage further defining a side diffusion portion defining a side diffusion length between a start of the side diffusion portion and the outlet, and a layback diffusion portion defining a layback diffusion length between a start of the layback diffusion portion and the outlet, wherein the side diffusion length is greater than the layback diffusion length and the layback diffusion portion begins at a point upstream of the outlet.
A film hole passage for a component, with a cool and hot side, of a gas turbine engine having an inlet on the cool side, an outlet on the hot, a side diffusion portion, and a layback diffusion portion, wherein the side diffusion portion is upstream and spaced from the layback diffusion portion and the layback diffusion portion begins at a point upstream of the outlet.
A film hole passage for a component, with a cool and hot side, having an inlet on the cool side, an outlet on the hot, a side diffusion portion, and a layback diffusion portion, wherein the side diffusion portion is upstream and spaced from the layback diffusion portion, and the layback diffusion portion defines a layback diffusion length which is less than 4 times a diameter of the film hole passage and the layback diffusion portion begins at a point upstream of the outlet.
Dependencies are inferred from the claim text.