Emissions control system and method
US5660800A · kind A · utility
9Cited by
34References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1995 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Sep 5, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas emissions control system lowers cold-start hydrocarbon emissions by using heat exchange structure to lower the temperature of exhaust gas prior to the exhaust gas passing through a hydrocarbon adsorbent and using the extracted heat to heat a catalytic converter to its light-off temperature. In some embodiments, multi-component hydrocarbon adsorbers effective under different operating conditions further reduce cold-start hydrocarbon emissions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.