Fuel tank and vehicle equipped with the same

摘要

In a fuel tank, a lower wall (8) partially defining a fuel storing chamber (5) curves upwards in accordance decreases in the amount of fuel stored in the fuel storing chamber. The volume of a gaseous space in the fuel storing chamber (5) is reduced by an amount corresponding to the capacity reduction of the fuel storing chamber (5) achieved by the curvature of the lower wall (8), in comparison with a fuel tank in which a lower wall does not deform. An amount of fuel that cannot be discharged from the fuel storing chamber (5) via a fuel passage (60) but remains near a peripheral end portion of the lower wall (8) of the fuel storing chamber (5) due to the upward curvature of the lower wall (8) is discharged via a residual fuel discharging pipe (63), so that the residual fuel amount of the fuel storing chamber (5) is minimized.