Curved blade retention slot for turbine blade in a turbine disk
AssigneeUnited Technologies Corporation
InventorChangsheng Guo
Life of this patent
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Abstract
A method of forming a curved slot in a turbine disk includes the steps of forming a pre-slot in the turbine disk and finishing the pre-slot to form a slot that receives a portion of a turbine blade. The turbine disk including a first face, an opposing second face, and an outer perimeter surface extending between the first face and the opposing second face. The pre-slot includes a first curved wall and a second curved wall that each extend between the first face and the opposing second face. An intersection between the outer perimeter surface and each of the first curved wall and the second curved wall is defined by a curved line.
Claims20
A turbine disk comprising:
- a body portion including a first face that defines a first plane, an opposing second face that defines a second plane, and an outer circumferential surface extending between the first face and the opposing second face;
- and
- a curved slot in the body portion that extends between the first face and the opposing second face, wherein the curved slot is defined by a first curved wall and a second curved wall, wherein the first curved wall and the second curved wall each extend between the first face and the opposing second face, and the curved slot receives a portion of a turbine blade, and wherein the first curved wall and the second curved wall have a center of curvature that is at a location outside an area between the first and second planes.
A turbine comprising:
- a turbine disk including a body portion including a first face that defines a first plane, an opposing second face that defines a second plane, and an outer circumferential surface extending between the first face and the opposing second face, the turbine disk including a curved slot in the body portion that extends between the first face and the opposing second face, wherein the curved slot is defined by a first curved wall and a second curved wall, wherein the first curved wall and the second curved wall each extend between the first face and the opposing second face and have a center of curvature that is at a location outside an area between the first and second planes, and wherein the curved slot receives a portion of a turbine blade;
- and
- a turbine blade having a curved base, wherein a curvature of the curved base of the turbine blade corresponds to a curvature of the first and second curved walls of the turbine disk, and the base of the turbine blade is received in the curved slot of the turbine disk.
Dependencies are inferred from the claim text.