Exhaust gas purification method and exhaust gas purification apparatus
US6786041B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2001 |
| Grant date | Sep 7, 2004 |
| Priority date | — |
| Expiry date | Jan 24, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M26/23
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A particulate filter (22) is arranged in an exhaust passage of an engine. When an amount of discharged particulate discharged from a combustion chamber (5) per unit time exceeds an amount of particulate removable by oxidation which can be removed by oxidation on the particulate filter (22) per unit time without emitting a luminous flame, at least one of the amount of discharged particulate and the amount of particulate removable by oxidation is controlled so that the amount of discharged particulate becomes smaller than the amount of particulate removable by oxidation, whereby the particulate in the exhaust gas can be continuously removed by oxidation on the particulate filter (22) without emitting a luminous flame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.