Spark detection in a fuel fired appliance
US8523560B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2010 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Jul 4, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2231/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A control system for a fuel-fired appliance and methods of operating are disclosed. In an illustrative embodiment, when an electrical characteristic of an optical detector, such as a resistance, does not change by at least a predetermined amount during an ignition trial, and/or when a level of EMI or electrical noise detected by an antenna in a burner assembly of the fuel-fired appliance does not increase during the ignition trial, the control system may determine that the ignition assembly is not sparking properly. In some instances, the control system may also be programmed to activate an indicator that would indicate to a user or technician a potential problem with the ignition assembly (e.g. not sparking properly to ignite fuel).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.