Catalytic burning apparatus
US5158448A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1990 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | Mar 23, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2237/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
There are arranged a mixing room (4) for mixing fuel with air, flame ports (5) disposed downstream of the mixing room, an ignition plug and a flame rod disposed near the flame ports, and a catalyst layer (8) disposed downstream of the flame ports and bored with a plurality of communicating holes (8a). The operation includes steps of activating the igniting means (6) for forming a flame at the flame ports (5), extinguishing the flame after a predetermined time length by once stopping the fuel supply, and starting a catalytic burning reaction on the surface of the catalyst layer (8) by supplying fuel again without activating the igniting means (6). The operation is controlled in such a manner that, in the flame forming step at the flame ports (5), the burning is stopped when the ion current detecting means (7) does not detect a predetermined electric current, and, in the catalytic burning step at the catalyst layer (8), the burning is stopped, in contrast with the above, when the ion current detecting means detects the predetermined electric current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.