Gas turbine thermal shroud with improved durability
US9605555B2 · kind B2 · utility
1Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2014 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Apr 30, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/21
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Shroud device thermally protecting a gas turbine blade, having a ceramic layer and a metallic layer, the metallic layer being thermally protected by the ceramic layer, the ceramic layer being mechanically joined to the metallic layer by a fixation device having a plurality of protrusions extending from the metallic layer designed so as to engage with a plurality of cavities located in the ceramic layer, such that there exists a gap between the cavities and the protrusions at ambient temperature, the gap disappearing at high temperature operation of the gas turbine, the protrusions being then locked into the cavities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.