Exhaust purification system of an internal combustion engine
US10641150B2 · kind B2 · utility
0Cited by
7References
4Claims
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Key dates
| Filing date | Feb 11, 2019 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Feb 11, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust treatment catalyst (5) is arranged in the engine exhaust passage, and hydrogen generated in the reformer (6) is supplied through the hydrogen supply pipe (13) to the inside of the engine exhaust passage upstream of the exhaust treatment catalyst (5). Heat exchange fins (15) for heat exchange with exhaust gas flowing through the inside of the engine exhaust passage are formed on the outer circumferential surface of the hydrogen supply pipe (13) inserted inside the engine exhaust passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.