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US 6,644,920 B2Granted
Method for providing a curved cooling channel in a gas turbine component as well as coolable blade for a gas turbine component
AssigneeAlstom (Switzerland) Ltd
InventorsAlexander Beeck, Bernhard Weigand
Life of this patent
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Abstract
A method of forming a curved cooling channel into a gas turbine component such as a turbine blade uses an electrode in the form of a helix. The electrode is driven to rotate around the central rotational axis of the helix and axially along the central rotational axis. A turbine blade for a gas turbine component is provided with at least one helical cooling channel.
Claims11
A method of forming a curved cooling channel in a gas turbine component, comprising:
- providing a helically shaped electrode having a central rotational axis and at least one 360 degree turn;
- and
- driving the electrode into the gas turbine component by rotating the electrode around the central rotational axis to advance the at least one 360 degree turn of the electrode into the gas turbine component.
A blade for a gas turbine component, comprising:
- a blade hub;
- a blade root;
- a platform;
- and
- at least one curved cooling channel defined within said blade, said cooling channel having at least one helical section and being provided in a transition area from the blade hub to the platform.
2 more elements
Dependencies are inferred from the claim text.