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US 10,773,344 B2Granted
Systems and methods for manufacturing film cooling hole diffuser portion
AssigneeRaytheon Technologies Corporation
InventorsScott D. Lewis, Stephen Lynch, Shane Haydt
Life of this patent
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Abstract
An electrode for electrical discharge machining (EDM) may comprise a diffuser portion and a tapered portion defining the tip of the electrode. A method for forming a film cooling hole may comprise moving a tool with respect to a film cooled gaspath component, forming a diffuser of the film cooling hole in response to the moving, and forming a tapered surface between a metering section and the diffuser of the film cooling hole.
Claims4
A film cooling hole, comprising:
- a metering section;
- a diffuser, and
- a tapered surface extending between the metering section and the diffuser,
- wherein the tapered surface is configured to mitigate flow separation in the diffuser,
- the tapered surface is oriented between twenty degrees and seventy degrees with respect to a centerline axis of the metering section, and
- the tapered surface is oriented at an obtuse angle with respect to an immediately adjacent surface of the diffuser, the obtuse angle is open towards the centerline axis.
3 more elements
Dependencies are inferred from the claim text.