Flame sensing system
US7764182B2 · kind B2 · utility
24Cited by
41References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2005 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | May 27, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2229/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A low cost flame sensing system having at last one floating point. For instance, the system may have two grounds. There may be a flame sensing rod for detecting a flame which has a model circuit which appears upon the existence of the flame proximate to the sensing rod. The sensing rod may function without an explicit or dedicated excitation source connected to it. There may be diagnostics in the system for detecting leakage or shorts of the sensing rod to ground. Also, the system may have AC grounding phase detection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.