Gas turbine combustor assembly with a trapped vortex feature
US11371710B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 2018 |
| Grant date | Jun 28, 2022 |
| Priority date | — |
| Expiry date | Oct 6, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23R2900/00015
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A combustor assembly of a gas turbine engine having a trapped vortex feature to reduce emissions where the trapped vortex is formed using ammonia injected into an annular cavity located in a wall surrounding a combustion chamber of the combustor assembly. The annular cavity, and therefore the trapped vortex, is positioned such that when the combustion occurs within the combustion chamber the position of the annular cavity, and therefore of the trapped vortex, is downstream of a flame front. The emissions resulting from combustion travel through the combustion chamber and pass by the annular cavity before exiting the combustion chamber. The trapped vortex in the combustion chamber supplies NH2 radicals, resulting from the ammonia of the trapped vortex, to the passing by emissions and converts NOx and/or N2O in the emissions to non-polluting products, mainly water and nitrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.