Turbomachine rotor having blades of composite material provided with metal labyrinth teeth
US8870531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2009 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Aug 28, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention provides a turbine machine rotor having blades of composite material, the rotor comprising an assembly disk, a plurality of composite material blades mounted on the assembly disk via their roots and each provided at its free end with a platform, and a metal shroud positioned on the blade platforms concentrically around the assembly disk and including labyrinth teeth that project radially outwards in order to abrade an abradable material carried by a casing surrounding the rotor, the casing being held stationary both axially and circumferentially relative to the blade platforms and being suitable for moving radially outwards in operation relative to the blade platforms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.