Thermally loaded blade for a turbomachine

Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...

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416 97R, 416224, 416241B, F01D 518

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active

058270450

ABSTRACT:
In a thermally loaded blade for a turbomachine, the front edge of such a blade is made from a ceramic material for providing better protection. The front edge has a shell-shaped form which covers at least one part of the head stage against which flow occurs. The connection between front edge and head stage is produced on the one side by a coupling-forming indentation and on the other side by an elastic element. The elastic element produces a retaining action at the location where it is placed and a frictional connection, having an effect on the indentation, on the other side of the blade. Cooling air bores in the head stage provide for a cooling effect on the ceramic front edge.

REFERENCES:
patent: 3619077 (1971-11-01), Wile
patent: 4461612 (1984-07-01), Dodd
patent: 4565490 (1986-01-01), Rice
patent: 4728262 (1988-03-01), Marshall
patent: 4786234 (1988-11-01), Readnour
patent: 4897020 (1990-01-01), Tonks
patent: 5090866 (1992-02-01), Blair
Japanese Patent Abstract for 59-215, 905, dated Dec. 1984.

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