Emmision control device for internal combustion engine
US7874145B2 · kind B2 · utility
1Cited by
0References
18Claims
0Family size
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Key dates
| Filing date | Sep 4, 2007 |
| Grant date | Jan 25, 2011 |
| Priority date | — |
| Expiry date | Nov 24, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Control is performed such that when an HC adsorption catalytic converter having an oxygen storage capacity is in a specified temperature range, fuel supply quantity is increased with a first increase ratio relative to basic fuel quantity based on the operating state of an internal combustion engine, in a first specified period after the end of fuel cut, and increased with a second increase ratio smaller than the first increase ratio, in a second specified period succeeding the first specified period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.