Fuel storage system
US5819796A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Mar 27, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86324
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The fuel storage system includes a control valve having a valve body which is movable along the inner circumferential wall surface of a filler pipe and which defines a passage isolated from the inner space of the filler pipe. A fuel tank and a canister communicate with each other via a main vapor line. When a fuel cap is attached to the filler port of the filler pipe, the valve body of the control valve is pushed by the fuel cap to be shifted away from the filler port, whereby a first sub-vapor line extending between the fuel tank and the control valve via the passage defined by the valve body is communicated to a second sub-vapor line extending between the control valve and the middle part of the main vapor line, permitting evaporative fuel gas to be introduced from the fuel tank into the canister. When a feed nozzle is inserted into the filler pipe to open a lid disposed therein, the valve body is shifted toward the filler port to allow the second sub-vapor line to communicate to the inner space of the filler pipe, to permit evaporative fuel gas to be introduced from the fuel tank into the filler pipe, preventing inflow of the outside air through the filler port attributed to dro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.