Adsorptive duct for contaminant removal, and methods
US6997977B2 · kind B2 · utility
31Cited by
82References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2004 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | May 13, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A duct for passage of air therethough; one particular use for the duct is as a passage for intake air for a vehicle engine. The duct has an interior, adsorptive region that is adapted to remove contaminants from the air stream passing therethrough. The adsorptive region includes adsorptive material such as carbon (usually activated carbon), activated alumina, zeolites, metal oxides or ion exchange resin. The duct inhibits diffusion of uncombusted gasoline back through the duct from the engine, after the engine has been shut off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.