Burst resistant rotor disk assembly

Details Burst resistant rotor disk assembly Burst resistant rotor disk assembly

1991-12-05

1993-05-25

Denion, Thomas E.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

416244A, B63H 120

Patent

active

052134750

ABSTRACT:
A rotor assembly for supporting rotor blades includes a plurality of axially adjoining discrete disks each having a rim. The rims include axial dovetail posts defining therebetween dovetail grooves for collectively supporting a respective blade dovetail therein. The disks are fixedly joined together by integral beams so that upon a crack failure of one of the disks, centrifugal load from the failed disk is transferred to an adjacent disk and crack propagation thereto is inhibited.

REFERENCES:
patent: 2918252 (1959-12-01), Haworth
patent: 3262676 (1966-07-01), Huebner, Jr. et al.
patent: 3356339 (1967-12-01), Thomas et al.
patent: 4062638 (1977-12-01), Hall, Jr.
patent: 4097194 (1978-06-01), Barack et al.
patent: 4102603 (1978-07-01), Smith et al.
patent: 4203705 (1980-05-01), Wesbecher
patent: 4310286 (1982-01-01), Peters et al.
patent: 4521160 (1985-06-01), Bouiller et al.
patent: 4536932 (1985-08-01), Athey
D. J. Nicholas, "The Wide-Chord Fan Blade-A Rolls-Royce First", Paper presented 15-19 Jun. 1987 (NTIS Order No. N88-10789), Title sheet and page containing FIG. 9b.
Interavia Aerospace Review, "Civil Engine Wars," Feb. 1991, pp. 11 and 12.
Flight International, figure on p. 1473, 3 Dec. 1983.

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