Asymmetric axial dovetail and rotor disk

Details Asymmetric axial dovetail and rotor disk Asymmetric axial dovetail and rotor disk

1993-07-21

1994-05-10

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

F01D 530

Patent

active

053103181

ABSTRACT:
A rotor disk includes a rim with axially spaced apart forward and aft ends, with the aft end having a larger diameter than the forward end. The rim includes a plurality of straight dovetail slots defining dovetail posts therebetween. Each dovetail post includes a pair of lobes, a neck, and first and second pressure faces facing radially inwardly from the lobes. The first and second pressure faces vary in radial height therebetween from a first magnitude at the rim aft end to a second and smaller magnitude at the rim forward end to shift a portion of the bending loads from the dovetail post at the rim forward end to the dovetail post at the larger rim aft end.

REFERENCES:
patent: Re33954 (1992-06-01), Honda et al.
patent: 2619318 (1952-11-01), Schaer
patent: 3986793 (1976-10-01), Warner et al.
patent: 4135857 (1979-01-01), Pannone et al.
patent: 4169694 (1979-10-01), Sanday
patent: 4451203 (1984-05-01), Langley
patent: 4460315 (1984-07-01), Tseng et al.
patent: 4595340 (1986-06-01), Klassen et al.
patent: 4621979 (1986-11-01), Zipps et al.
patent: 4767274 (1988-08-01), Walter
patent: 5067876 (1991-11-01), Moreman, III

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