Filtration device for use with a fuel vapor recovery system
US6599350B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1999 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Dec 20, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M35/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filtration device for use in filtering air used to purge a vapor storage canister used in connection with a fuel vapor recovery system of an automobile. The device includes a housing. In some instances, the housing may be integral to another component. The housing has a chamber having an arcuate inner surface. Air flowing into the chamber through an inlet port strikes the arcuate interior surface and is redirected such that the air rotates in said chamber. The centrifugal force of the rotating air filters out any contaminants of sufficient mass contained therein. The filtered air is removed via an outlet port positioned near the longitudinal-axis of the chamber. Contaminants removed from the air fall due to gravity or a secondary air flow pattern into a collection portion of the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.