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US 4,784,573 AGranted
Turbine blade attachment
AssigneeUnited Technologies Corporation
InventorRobert Ress, Jr.
Life of this patent
Estimating the term…
Abstract
A bladed turbine disk has a plurality of air cooled blades. The disk has a substantially continuous impervious rim. Each blade has a platform and an impervious base with the cooling air inlet between the platform and base. Each blade base is diffusion bonded to the rim, preferably to a slightly raised plateau. The edge of the bond surface is accessable and free of stress concentration.
Claims4
A bladed turbine disk comprising:
- a disk having a substantially continuous impervious outer rim;
- a plurality of hollow air cooled turbine blades, including air outlet openings, and an integral blade platform;
- a cavity between adjacent blades below said blade platform and above said outer rim;
- each blade having a continuous impervious base, an air inlet opening on one side of said blade in fluid communication with said cavity and below said platform;
- and
- the base of each blade diffusion bonded to said outer rim of said disk, whereby the edge of the bond is everywhere accessible for inspection, cleaning and surface modification;
- and seal plate means for sealing far end of said cavity secured between said rim and said blade platform.
4 more elements
Dependencies are inferred from the claim text.