Patent ID: 7730877

Claim:
A fuel tank structure comprising: a fuel accommodating portion that accommodates fuel; a fuel feed-out pipe having, within the fuel accommodating portion, a fuel suction opening for feeding fuel from the fuel accommodating portion out to an exterior; a fuel flow-in pipe communicating with the fuel feed-out pipe, and causing fuel to flow into the fuel accommodating portion; a jet pump disposed within the fuel accommodating portion and to which a fuel discharge opening of the fuel flow-in pipe is connected, the jet pump able to transfer fuel from a region other than the fuel flow-in pipe by utilizing negative pressure of fuel that flows-in from the fuel flow-in pipe; and a fuel transfer pipe, connected to the jet pump, for transferring fuel from a region other than the fuel flow-in pipe by the negative pressure, wherein a portion of the fuel feed-out pipe and a portion of the fuel flow-in pipe are positioned lower than a lowest liquid surface of fuel that is set at the fuel accommodating portion, and a fuel expelling port of the jet pump is positioned at a height that is greater than or equal to a highest liquid surface of fuel that is set at the fuel accommodating portion.