Swirler, combustor assembly, and gas turbine with improved fuel/air mixing
US11421882B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2017 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | May 30, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C2900/07001
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A swirler for creating a swirling fuel/air mix having vanes extending radially around a central axis of the swirler and positioned on an annular base. The swirler has mixing channels for mixing the fuel and the air. At least one mixing channel is defined by opposing walls of two adjacent vanes. At least one of the opposing walls includes a primary side injection opening for ejecting a stream of fuel into the mixing channel; and a secondary side injection opening which corresponds to the primary side injection opening and is for ejecting a jet of fuel into the mixing channel. The secondary side injection opening is positioned on the wall such that the jet from the secondary side injection opening creates turbulence, within the mixing channel, in the stream from the primary side injection opening. The turbulence increases mixing of fuel and air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.