Device for the axial locking of a guide shaft bearing in a turbomachine
US8246255B2 · kind B2 · utility
13Cited by
16References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 2009 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Sep 18, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/21
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A guide shaft bearing including an internal ring mounted on a cylindrical contact surface of a shaft and a device for the axial locking of the ring including a ring mounted sliding on the cylindrical contact surface and an annular rib made of shape memory material mounted in two annular grooves of the cylindrical contact surface and of the ring is disclosed. The annular rib is able to expand radially by shape memory effect when it is subjected to a temperature greater than a transition temperature of its material to pass to a locking position of the ring on the cylindrical contact surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.