Exhaust purification device and exhaust purification method
US11499456B2 · kind B2 · utility
0Cited by
0References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2019 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Sep 4, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Provided are an exhaust purification device and an exhaust purification method which can achieve improved fuel efficiency. The exhaust purification device (100) is equipped with: a DOC (5) for occluding hydrocarbons in an exhaust gas; a DPF (6) that is provided downstream from the DOC (5) and is for trapping particulate matter in the exhaust gas; and an ECU (10) for determining, in accordance with the amount of occluded hydrocarbons in the DOC (5), a start time for a regeneration process for removing particulate matter accumulated in the DPF (6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.