Outer airseal abradable rub strip
US10494945B2 · kind B2 · utility
6Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2016 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Jan 23, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/615
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A blade outer airseal has a body comprising: an inner diameter (ID) surface; an outer diameter (OD) surface; a leading end; and a trailing end. The airseal body has a metallic substrate and a coating system atop the substrate along at least a portion of the inner diameter surface. At least over a first area of the inner diameter surface, the coating system comprises an abradable layer system comprising a plurality of layers including a relatively erosion-resistant first layer atop a relatively abradable second layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.