Regenerable filter with localized and efficient heating
US6540816B2 · kind B2 · utility
31Cited by
30References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Aug 23, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1025
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust aftertreatment filter is provided with localized and efficient heating for regeneration. Electrical and/or thermal conductors are wound with filter media sheets into a filter roll and/or conductors are provided at axial ends of the filter roll and/or microwave radiation is used for localized hot zone heating. Regeneration is provided at lateral slices of the filter roll lying in a plane extending transversely and radially relative to the filter roll axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.