Patent ID: 8813780
Filing Date: 2014-08-26
Classification: B60K,B60Y,Y10T

Abstract:
1. A fuel tank for a spark-ignition motor having a vapor intake port, the fuel tank comprising: a tank body having a tank wall enclosing a tank volume; a filler port at a filler-port location in a first upper portion of the tank wall, the filler-port location spaced radially from a vertical axis passing through a geometric center of the tank when the tank is in a horizontal position, the filler port establishing a liquid fill-level limit for the tank volume; a vapor dome formed by a second upper portion of the tank wall, the vapor dome subtending a vapor space above the liquid fill-level limit; and a vapor vent valve mounted in the vapor dome, the vapor vent valve connectable to the vapor intake port, the vapor dome having a shape and size allowing the tank body to tilt from about the horizontal position to about thirty degrees from the horizontal position in at least two orthogonal directions before a liquid filling the tank volume to the liquid fill-level limit contacts the vapor vent valve.