Hot surface ignitor
US5865612A · kind A · utility
11Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1996 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Feb 16, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2227/42
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An ignition circuit and method for a hot surface ignitor. The ignition process and apparatus enforces a short warm-up period for the hot surface ignitor where approximately half power is supplied at start-up to the ignitor until the ignitor warms to a point where its impedance is increased. By warming the ignitor gradually, the system power supply is not pulled down to a level which may cause malfunction of other electronics connected to the same supply. Further, the voltage level to the ignitor is controlled so that service life of the ignitor is extended.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.