Gas turbine engine blade

Details Gas turbine engine blade Gas turbine engine blade

1990-03-19

1992-03-31

Kwon, John T.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

416221, 416248, 416500, F01D 510

Patent

active

051002922

ABSTRACT:
A gas turbine engine blade is disclosed which includes a dovetail having retention lobes and fillets. Compression loads are provided in the dovetail for introducing compressive prestresses at the fillets for reducing tensile stresses at the fillets due to loads in the blade such as centrifugal tension loads. In an exemplary embodiment, the compression means comprises a cavity in the dovetail and an insert disposed therein in an interference fit for generating compressive stresses at the cavity and at the fillets.

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patent: 4820126 (1989-04-01), Gavilan
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