Ceramic faced outer air seal for gas turbine engines
US4422648A · kind A · utility
47Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1982 |
| Grant date | Dec 27, 1983 |
| Priority date | — |
| Expiry date | Jun 17, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/943
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Outer air seal structures of particular suitability for use in gas turbine engines are disclosed. Techniques for improving resistance to erosion while maintaining good abradability are discussed. In one particular structure the ceramic facing material of an outer air seal (30) at the leading edge region (36) is densified by a plasma gun to produce a glazed area (52) which is resistant to erosion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.