Burner with exhaust gas recirculation
US6672863B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2002 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | May 16, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C2900/07002
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
In a premixing burner (1) for a gas turbine or hot-gas generation for the combustion of liquid or gaseous fuel, in which fuel is mixed with combustion air (9a, 9b) in a burner interior (14), is fed to a combustion chamber (3) and is burnt in this combustion chamber (3), stabilization in the part-load model is achieved in a simple and efficient way in that means (15) are provided which make it possible to recirculate hot exhaust gas (17) out of the combustion chamber (3) into the burner interior (14) and to stabilize the flame by means of selfignition processes. The means (15) are preferably a recirculation line which picks up hot exhaust gas (17) from the outer backflow zone (10) and feeds it to the burner interior (14) in the region of a burner tip (2) facing away from the combustion chamber (3), additional fuel (pilot fuel 21) being admixed with the exhaust gas (17) in the recirculation line upstream of the feed to the burner interior (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.