Automotive engine exhaust aftertreatment system including hydrocarbon adsorber with internal engine purge flow control
US5375414A · kind A · utility
13Cited by
16References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1993 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Oct 4, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An automotive internal combustion engine is equipped with a hydrocarbon adsorber for the purpose of controlling the emission of unburned hydrocarbons from the vehicle's tailpipe. Regeneration of the adsorber is achieved by an electronic engine controller operating a purge air system for drawing desorbed hydrocarbon material into the engine's intake.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.