Device for stiffening the stator of a turbomachine and application to aircraft engines
US8133011B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2008 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Aug 23, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention concerns a novel type of turbomachine. The stator of the turbomachine comprises a plurality of profiled members forming stiffeners arranged on the blade stage. The profiled members are distributed uniformly at periphery of the blade stage and individually between two consecutive blades. The stiffeners are fixed to the internal and external ferrules of the stator in order to uniformly increase the axial and radial stiffness of the stator in normal operation of the turbomachine and to allow the internal ferrules to have a limited displacement during the normal functioning of the turbomachine. This makes it possible to reduce the axial sizing of the turbomachine, and consequently its mass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.