Rotor with stress relief

Details Rotor with stress relief Rotor with stress relief

1987-10-30

1989-04-18

Simone, Timothy F.

Imperforate bowl: centrifugal separators

Including plurality of miniature bowls distrubuted about...

494 43, 494 84, B04B 502

Patent

active

048223301

ABSTRACT:
The present invention provides a mechanism for bolting a rotor to a hub without introducing excessive radial stress around the bolt holes when the rotor is operating at high speed. The rotor has a slot cut through its center to eliminate radial stress perpendicular to the slot and thereby avoid the problem of stress cracking of the otherwise weak section. The mounting bolts are necked down and not threaded at the surface of the hub. The bolts are threaded into the hub at a substantial distance from the top surface of the hub so that they can flex and so that the center of the rotor can move out relative to the hub. The hub rotor interface is lubricated to facilitate radial motion of the center of the rotor.

REFERENCES:
patent: 4254904 (1981-03-01), Ostermeyer et al.
patent: 4350282 (1982-09-01), Dudrey et al.
patent: 4350283 (1982-09-01), Leonian
patent: 4701157 (1987-10-01), Potter

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