Hydrocarbon adsorption filter for air intake system evaporative emission control
US7578285B2 · kind B2 · utility
17Cited by
44References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2005 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Nov 17, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M25/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is directed to the use of an improved hydrocarbon adsorbent coating for the treatment of evaporative emissions from a motor vehicle. More specifically, one or more hydrocarbon adsorbents, in accordance with the present invention, can be coated to any surface area of an air intake system to trap hydrocarbon vapors before they can escape to the atmosphere, through said air intake system. In another embodiment, one or more hydrocarbon adsorbents can be incorporated in the air filter of an air intake system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.