Exhaust gas-purifying system
US8679412B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2012 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Sep 25, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas-purifying system for purifying exhaust gas discharged from a diesel engine includes a diesel oxidation catalyst through which the exhaust gas passes, a diesel particulate filter which includes a filter substrate and an active component supported by the filter substrate and exhibiting a catalytic activity for selective catalytic reduction and through which the exhaust gas having passed through the diesel oxidation catalyst penetrates, and an ammonia slip catalyst which includes a zeolite whose alkaline metal ions are partially exchanged with transition metal ions and through which the exhaust gas having penetrated the diesel particulate filter passes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.