Quadra-tang dovetail blade

Details Quadra-tang dovetail blade Quadra-tang dovetail blade

1992-08-11

1994-05-10

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received by continuous circumferential channel

416217, 416248, 416219R, B64C 2748

Patent

active

053103173

ABSTRACT:
A gas turbine engine rotor blade includes an airfoil joined to a dovetail. The dovetail includes a shank from which extends two pairs of dovetail tangs being defined by a bifurcating slot disposed therebetween. The dovetail is configured for retention in a complementary dovetail groove in a rotor disk with the bifurcating slot remaining empty for reducing weight of the blade while transferring centrifugal loads from the blade to the rotor disk.

REFERENCES:
patent: 3246699 (1966-04-01), Jocz
patent: 3902824 (1975-09-01), Sauer
patent: 4047840 (1977-09-01), Ravenhall et al.
patent: 4466776 (1984-08-01), Camboulives
patent: 5018941 (1991-05-01), Heurtel et al.
patent: 5022822 (1991-06-01), Sincere
I. E. Treager, "Aircraft Gas Turbine Engine Technology," 1979, pp: i, ii, 469-477.

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