Apparatus and method for filtering particulate in an exhaust trap
US6233926A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2000 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Mar 1, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86743
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An apparatus and method are disclosed for removing or filtering particulate from an internal combustion engine exhaust and/or for regenerating through flow particulate traps with the incoming flow of exhaust gas. The particulate trap modules have through flow passageways with porous walls for filtering particulate in the exhaust gas. The passageways are regenerated by periodically passing the exhaust gas there through at a velocity sufficient to erode or dislodge the soot and/or ash. Apparatus is provided to separate, burn and store the dislodged soot and/or ash. Having devices and catalysts may also be used to aid in the removal of soot and/or ash.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.