External dilution air tuning for dry low NOx combustors and methods therefor
US6331110A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2000 |
| Grant date | Dec 18, 2001 |
| Priority date | — |
| Expiry date | May 25, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23R2900/00016
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Dilution sleeves are provided in radially aligned openings in the combustion liner and flow sleeve of a combustor for a gas turbine. The sleeves have a flange for seating on a collar of the flow sleeve about the opening therethrough enabling the dilution sleeve to extend through the aligned openings. A cover is removably mounted on the outer casing and a spring bears between the cover and the dilution sleeve flange to maintain the dilution sleeve in the openings. Dilution sleeves having different cross-sectional flow areas may be provided in lieu of initially installed dilution sleeves upon comparing measured emission levels with desired emission levels and ascertaining the desired increase or decrease in cross-sectional flow area through the dilution sleeves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.