Trailing edge fuel injection enhancement for flame holding mitigation
US12196421B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2022 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Nov 3, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23R3/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An injector for a combustor of a gas turbine engine is provided with a plurality of first vanes radially arrayed about a central axis of the injector and a plurality of second vanes radially arrayed about the central axis of the injector and disposed radially inward of the plurality of first vanes. A plurality of fuel injection holes are disposed nearer to a trailing edge than to a leading edge of the second vanes for injecting fuel into compressed air passing through over the second vanes. The trailing edge of each of the second vanes includes a non-planar profile configured to induce turbulence in the compressed air to thereby mix the fuel with the compressed air and reduce the surfaces on which undesirable flame anchoring may occur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.