Trailing edge cooling for a turbine blade
AssigneeGeneral Electric Company
InventorsRonald Scott Bunker, Zachary Daniel Webster
Life of this patent
Estimating the term…
Abstract
A component for a gas turbine engine comprises an airfoil having an outer surface. One or more cooling passages can be disposed within the airfoil, having a cooling passage extending along a trailing edge. A plurality of cooling channels can extend from the cooling passage through the trailing edge. At least one flow element and at least one film hole can be disposed in the cooling channel or the trailing edge passage adjacent the cooling channel. The flow element and the film hole can be in a predetermined relationship with one another providing improved flow to the film hole.
Claims20
A component for a turbine engine comprising:
- an airfoil having an outer surface extending chord-wise from a leading edge to a trailing edge and span-wise from a root to a tip;
- a cooling passage located within the airfoil and extending along the trailing edge;
- at least one trailing edge cooling channel extending from the cooling passage through the trailing edge or the outer surface at the trailing edge;
- and
- at least one film hole having an inlet in cooling passage, an outlet on the outer surface, and a passage connecting the inlet and the outlet;
- wherein the inlet is located in the cooling passage in a predetermined relationship to the trailing edge cooling channel.
A turbine engine comprising:
- a core engine comprising a casing at least partially surrounding a high pressure compressor, a combustor, and a high pressure turbine in a serial flow arrangement;
- an airfoil, provided in one of the compressor or the combustor, having an outer surface extending chord-wise from a leading edge to a trailing edge and span-wise from a root to a tip;
- a cooling passage located within the airfoil and extending along the trailing edge;
- at least one trailing edge cooling channel extending from the cooling passage through the trailing edge;
- and
- at least one film hole having an inlet in cooling passage, an outlet on the outer surface, and a passage connecting the inlet and the outlet;
- wherein the inlet is located in the cooling passage in a predetermined relationship to the trailing edge cooling channel.
Dependencies are inferred from the claim text.