Joining means for rotor discs

Details Joining means for rotor discs Joining means for rotor discs

1993-06-28

1994-09-27

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Multiple axially spaced working members

F01D 506

Patent

active

053502787

ABSTRACT:
In an assembly of spaced rotor discs, mounted to rotate about a common axis, one or more discs are provided that are removably joined to the other discs but so joined, away from potential fatigue points in the disc webs. Thus a pair of discs have a spacer arm extending therebetween in contact therewith. Further, each disc of such pair, has a flange that extends between the discs toward the flange of the other disc, which flanges (and thus the discs) are removably bolted together at a junction removed from the disc webs for greater disc durability and lower replacement costs thereof. The so joined flanges and spacer arm (which is held in a piloted joint under compressive pre-load) define an annular cavity around a pair of the discs and thus redundant structural support therebetween.

REFERENCES:
patent: 2309878 (1943-02-01), Wiberg
patent: 3356340 (1967-12-01), Bobo
patent: 3765795 (1973-10-01), Koff
patent: 3868197 (1975-02-01), Hugoson
patent: 4468148 (1984-08-01), Seymour
patent: 4576547 (1986-03-01), Weiner et al.
patent: 4808073 (1989-02-01), Zaehring et al.
patent: 4844694 (1989-07-01), Naudet
patent: 5052891 (1991-10-01), Burkholder
patent: 5232339 (1993-08-01), Plemmons et al.

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