Exhaust gas purifier and method for internal combustion engine
US6361579B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Jun 22, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In an exhaust gas purifier for an internal combustion engine having a trap for trapping particulate matters contained in exhaust gas discharged from the internal combustion engine, the present invention aims at suppressing production of ashes and thereby preventing pressure loss associated with the clogging of the trap. In order to achieve this object, the present invention provides an exhaust gas purifier for an internal combustion engine having a trap for trapping particulate matters contained in exhaust gas discharged from the internal combustion engine, wherein the trap carries a metal which has an electronegativity equal to or lower than a predetermined content contained in fuel or lubricating oil for the internal combustion engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.