Exhaust gas purifying apparatus
US7514047B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2004 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | May 5, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2330/48
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to an exhaust gas purifying apparatus, for trapping and burning PM, which comprises electrodes and an insulative honeycomb structure. The apparatus is characterized in that the electrodes make an electric field in the honeycomb structure, the electric field not being parallel with the cell passages of the honeycomb structure. Further the apparatus is characterized in that the electrodes make an electric field in the honeycomb structure, and that the honeycomb structure carries at least one metal selected from the group consisting of an alkali metal and an alkali earth metal; a material that generates oxygen radical by conducting an electric current therethrough; a manganese dioxide; and/or a material having a high dielectric constant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.