Forced-draft pre-mix burner device
US11441772B2 · kind B2 · utility
0Cited by
17References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2018 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Jun 14, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2241/14
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A forced-draft pre-mix burner device has a housing that conveys air from an upstream cool air inlet to a downstream warm air outlet. A heat exchanger warms the air prior to discharge via the warm air outlet. A gas burner burns an air-gas mixture to thereby warm the heat exchanger. A fan mixes the air-gas mixture and forces the air-gas mixture into the gas burner. The fan has a plurality of blades having sinusoidal-modulated blade spacing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.