Lightweight platform blade

Details Lightweight platform blade Lightweight platform blade

1992-08-11

1993-12-21

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received by continuous circumferential channel

416217, 416193A, 416248, F01D 532

Patent

active

052717186

ABSTRACT:
A rotor blade for a gas turbine engine includes an airfoil, platform and dovetail. The platform has top and bottom surfaces, with a plurality of pockets disposed in the bottom surface for reducing weight of the platform, with the pockets defining a plurality of continuous beams extending along the platform which provide structural stiffness to the platform to avoid resonance vibration thereof during operation.

REFERENCES:
patent: 2398140 (1946-04-01), Heppner
patent: 2656147 (1953-10-01), Brownhill et al.
patent: 3661475 (1972-05-01), Anderson et al.
patent: 3902824 (1975-09-01), Sauer
patent: 4451203 (1984-05-01), Langley
patent: 4940389 (1990-07-01), Luxenburger
patent: 5007800 (1991-04-01), Hacault et al.
patent: 5044886 (1991-09-01), Stenneler
I. E. Treager, "Aircraft Gas Turbine Engine Technology," 1979, pp.: i, ii, 469-477.

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