Hoop stress relief mechanism for gas turbine engines
US7097422B2 · kind B2 · utility
26Cited by
10References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2004 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Jun 17, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/941
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hoop stress relief mechanism is disclosed for use on a rotary body to relieve stress caused by both thermal and centrifugal forces. The mechanism may consist of a J-shaped slot cut from the outer rim of the rotary body a distance inwardly toward the axis of rotation, the slot having a curve in its inward end that curves back towards the outer rim. The J-shaped slot may extend through the rotary body to join its two faces. The J-shaped slot may be fabricated by an electric discharge wire machine. The electric discharge wire machine may make multiple passes in order to smooth the bottom surface of the curved slot portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.