Abradable coating system
US7686570B2 · kind B2 · utility
24Cited by
18References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 1, 2006 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Apr 13, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24157
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
This invention relates to an abradable coating system for use in axial turbine engines. When coated onto a turbine ring seal segment the coating system may allow formation of an individualized seal between turbine blade disks and the surrounding ring seal without causing excessive wear to the blade tips. The abradable coating system includes columns of an abradable material. Thus, interference between the blades and the abradable coating system causes the individual columns to break off at the base. This abrasion mechanism may reduce blade wear and spalling of the coating system when compared to conventional coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.