Gas turbine engine combustor top hat cover attachment system with lugged interlocking backing plate
US9513011B2 · kind B2 · utility
1Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 3, 2014 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | May 27, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49734
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Combustor top hat covers are attached to midframe combustor portals with a lugged backing plate that interlocks with mating recesses formed in the corresponding midframe combustor portal. Exemplary embodiments utilize twist lock engagement of backing plate ring lugs under projecting tabs formed over a lug raceway recess in the combustor portal mating surface. The top hat cover is in turn fastened to the combustor portal by fasteners that engage corresponding threaded apertures formed in the backing plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.