Low NOx gas burners with carryover ignition
US10006628B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2011 |
| Grant date | Jun 26, 2018 |
| Priority date | — |
| Expiry date | Nov 7, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23D2213/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A gas burner for low NOx gas furnaces is disclosed with improved flame carryover for igniting one or more adjacent burners. The burner includes a burner tube that receives a mixture of fuel and air. The burner tube is coupled to an outlet. The outlet includes a primary outlet opening which is in communication with at least one transverse slot for communicating a flame to at least one adjacent burner. The primary outlet opening may be elliptical and the outlet further may also include a concave outer face through which the primary outlet opening extends. The at least one slot may include a pair of oppositely directed transverse slots extending outward from the primary outlet opening along a semi-minor axis of the primary outlet opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.