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US 2020/0109636 A1Published application
Airfoil with cast features and method of manufacture
AssigneeGeneral Electric Company
InventorsGregory Terrence Garay, Douglas Ray Smith, Aaron Ezekiel Smith, Zachary Daniel Webster
Life of this patent
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Abstract
An apparatus and method for forming a film hole in an outer wall of an airfoil. The film hole includes a blind opening adjacent the interior of the airfoil and a hole adjacent the exterior of the airfoil. The blind opening fluidly couples to the hole to form the film hole for providing a volume of fluid as a surface cooling film along the exterior of the outer wall.
Claims20
An airfoil for a turbine engine comprising:
- an outer wall having an outer surface and an inner surface bounding a hollow interior, the outer wall defining a pressure side and a suction side extending axially between a leading edge and a trailing edge and extending radially between a root and a tip;
- a plurality of blind openings cast in the inner surface and terminating within the outer wall;
- and
- a plurality of machined openings extending through the outer surface and each machined opening in the plurality of machined openings intersecting a corresponding blind opening in the plurality of blind openings.
1 more element
The airfoil of claim 10 wherein the joint cavity has a semi-circular shape.
An airfoil for a turbine engine comprising:
- an outer wall having an outer surface and an inner surface bounding an interior, the outer wall defining a pressure side and a suction side extending axially between a leading edge and a trailing edge and extending radially between a root and a tip;
- at least one first blind opening formed in the inner surface and terminating within the outer wall;
- and
- at least one second blind opening extending through the outer surface and intersecting the at least one first blind opening.
1 more element
Dependencies are inferred from the claim text.