| 摘要 |
A fuel system includes a fuel tank, a fill head, a vapor canister, and a valve assembly. The fill head is in fluid communication with the fuel tank. Fluid flows from the fill head to the fuel tank. The vapor canister is configured for absorbing vapor therein. A recirculation line is configured to fluidly extend between the fuel tank and the fill head. A vapor line is configured to fluidly extend between the fuel tank and the vapor canister. The valve assembly is operatively disposed along the vapor line or the recirculation line. The valve assembly includes a filter having a membrane formed from a micro-porous element that is fluid impermeable and vapor permeable. Fluid is prevented from flowing through the membrane and into the vapor canister while allowing vapor to flow through the membrane and into the vapor canister. |
