Electrically regenerated exhaust particulate filter for an engine system and operating strategy therefor
US7981174B2 · kind B2 · utility
2Cited by
37References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2007 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Feb 26, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust particulate filter for an engine system includes an array of filter cartridges positioned within a shell, each of the cartridges having an electrically powered heating element coupled therewith. Exhaust gases are distributed among the cartridges according to a single distribution pattern, and the filter can be regenerated without diverting, dividing or bypassing exhaust gases from the filter. Other aspects include feedback control and feedforward control of regeneration based on sensing an electrical resistance property of each of the electrically powered heating elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.