Blade outer air seal system for controlled tip clearance
US9447696B2 · kind B2 · utility
9Cited by
18References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2012 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Mar 21, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A blade outer air seal system for a gas turbine engine includes a plurality of ring carriers made of a first material having a first coefficient of thermal expansion. A plurality of seal segments are carried, respectively, on the plurality of ring carriers. A ring member is carried in the plurality of ring carriers. The ring member is made of a second material that is different from the first material in composition. The second material has a second coefficient of thermal expansion such that the first coefficient of thermal expansion is 75-175% of the second coefficient of thermal expansion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.