Stave and ring CMC nozzle
US8047004B2 · kind B2 · utility
6Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2008 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | May 24, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine exhaust nozzle comprises a plurality of CMC staves attached to one or more support rings arranged axially. The support rings provide a circumferential load path between the staves and for attaching the exhaust nozzle to the metallic engine components. The staves are fixed to the support rings with a spacing intended to accommodate for relative movement due to the difference in CTE for the CMC and metallic components and due to thermal gradients through the wall thickness. The resulting apparatus is lightweight, relieves the nozzle of thermal stresses, and is easier to manufacture and repair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.