High turndown boiler and system and method for controlling a boiler
US11300290B2 · kind B2 · utility
0Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2019 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Apr 3, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3133
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A heating device includes a combustion chamber, a housing in fluid communication with the combustion chamber, a burner disposed in the housing, a blower assembly connected to the housing for directing air into the interior of the housing, a valve assembly connected to the housing for controlling a flow of fuel into the burner, an optical color sensor for sensing a color profile of a surface of the burner, and a control unit configured to control the valve assembly in dependence upon the color profile of the surface of the burner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.