Canister of vehicle
US7294179B2 · kind B2 · utility
15Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2004 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Mar 10, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/4566
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Two types of activated charcoals having different adsorption and desorption functions are appropriately disposed in a canister. Gas movement is evenly dispersed via an air space and diffuser equipped between the two activated charcoals. Thereby, leakage of fuel vapor from the canister to the atmosphere is minimized without implementing a supplementary component (e.g., a subsidiary canister), and reduction of the consumption amount of the activated charcoal by eliminating a dead volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.