Gas duct with heated porous metal structure
US10415447B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2016 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Jun 6, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A gas duct (100) has a duct wall (110) enclosing an interior space (120), a heated porous metal structure (113) arranged in the interior space (120) for passing through gases and an electric heater (102). The electric heater (102) is a mineral-insulated heater including a heat conductor (104), one or more front-side connection openings and an outer metal jacket (108). The electric heater (102) has a section (102a), which is passed through the duct wall (110), so that all front-side connection openings (116) are arranged outside the interior space (120) of the gas duct (100) and the outer metal jacket (108) is welded or soldered to the duct wall (110) in the section. The heat conductor (104) is completely embedded in a ceramic insulation (106) at least in the sections of the electric heater (102) that are arranged in the interior space (120) of the gas duct (100).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.