Passive evaporative emission control module
US7311088B1 · kind B1 · utility
14Cited by
36References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2006 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | May 22, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/4516
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An emission control module (14) includes a housing (52) that includes an atmospheric air opening (102) and a vapor emission inlet (104) for communication with a vapor region (32) of a fuel reservoir (16). A hydrocarbon filter (56) is disposed between the atmospheric air opening (102) and the vapor emission inlet (104) to passively filter vapor emissions within the vapor region (32). The housing (52) is configured for purging of the hydrocarbon filter (56) due to a low-pressure draw from the vapor emission inlet (104).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.