Rotor with stress relief
US4822330A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Oct 30, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B9/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.