Patent ID: 8573183

Claim:
A fuel tank venting system comprising: a fuel tank having an upper wall extending generally in a horizontal direction when viewed from a side elevation view, wherein the fuel tank defines a first end region, a central region, and a second end region when viewed from a plan view; a first outlet valve disposed in the upper wall of the fuel tank in the first end region of the fuel tank; a second outlet valve disposed in the upper wall of the fuel tank in the second end region of the fuel tank; a first outlet tube connected to the first outlet valve, wherein the first outlet tube is mounted to the upper wall of the fuel tank and extends generally in a horizontal direction along the upper wall of the fuel tank from the first end region to a second end region location that is past the second outlet valve in the second end region; and a second outlet tube connected to the second outlet valve, wherein the second outlet tube is mounted to the upper wall of the fuel tank and extends generally in a horizontal direction along the upper wall of the fuel tank from the second end region, through the central region, and to a first end region location proximate to the first outlet valve, and reverses direction extending back through the central region and to the second end region, wherein the first outlet tube and the second outlet tube are configured to connect to a tube in the second end region leading to an evaporative emissions canister, wherein the first outlet valve and the second outlet valve are positioned such that at least one of the first outlet valve and the second outlet valve is above a full fuel level for a desired range of fuel tank tilted positions, wherein, among the desired range of fuel tank tilted positions, when the first outlet valve is positioned below the full fuel level, at least a portion of the first outlet tube is above the full fuel level, and wherein, among the desired range of fuel tank tilted positions, when the second outlet valve is positioned below the full fuel level, at least a portion of the second outlet tube is above the full fuel level.