Fuel vapor recovery system
US5806500A · kind A · utility
95Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1997 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Feb 3, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K15/03504
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel vapor recovery system for an automotive vehicle includes a fuel tank, a first vapor recovery canister, a second vapor recovery canister, and a bypass flow metering element. The first canister has an inlet communicating directly with the fuel tank and an outlet. The second canister has an inlet communicating directly with the outlet of the first canister. The bypass flow metering element is disposed between the inlet and outlet of the first canister and directs a predetermined portion of the vapor from the tank directly to the inlet of the second canister, thereby reducing the vapor flow restriction through the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.