Ventilation line opening/closing means of fuel tank
US5437317A · kind A · utility
23Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1994 |
| Grant date | Aug 1, 1995 |
| Priority date | — |
| Expiry date | Jan 4, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8634
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A ventilation line opening/closing device for a fuel tank wherein opening/closing valve is provided in a ventilation line for vapor leading from the fuel tank to a canister. The opening/closing valve includes a closure device for closing the valve by opening a shutter when a fuel supplying nozzle is inserted into a filler port. The valve remains closed even when the fuel supplying nozzle is removed from the filler port and is only opened by an opening device for opening the valve when the filler cap is tightly fitted into the filler port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.