Power vented, fuel fired water heater with soft ignition system
US6418882B1 · kind B1 · utility
4Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2001 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Apr 12, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H1/205
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A power vented, gas fired water heater has a main gas burner disposed within a combustion chamber partially bounded by an arrestor plate having a spaced series of flame quenching combustion air inlet openings therein. To provide for a “soft” ignition of extraneous flammable vapors entering the combustion chamber and to limit the build-up of unignited flammable vapors within the combustion chamber during non-demand periods of the water heater, a non-flame type ignition device is disposed within the combustion chamber and operated at least intermittently during such non-demand periods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.