Ultra low NOX burner
US5407345A · kind A · utility
37Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1993 |
| Grant date | Apr 18, 1995 |
| Priority date | — |
| Expiry date | Apr 12, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23C2900/09002
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A burner is disclosed having a burner chamber with heavily insulated heat retaining walls and a series of off center mixer tubes located at one end thereof. A uniform concentration gas/air mixture to 50% additional fuel above the lean flammability limit coming from the mixer tubes is ignited in the burner chamber due to the recirculation of combusting gas and air back to the end of the burner chamber above auto the ignition temperature for the mixture. The particular mixture disclosed utilizes 0.55-0.7 equivalence ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.