Patent ID: 7562788

Claim:
An on-board gaseous fuel tank module comprising: a support frame member; and a gaseous fuel tank fixed to the support frame member horizontally, the gaseous fuel tank comprising: a cylindrical tank unit, a gaseous fuel inlet and outlet valve device provided at a first axial end portion of the tank unit such that a part thereof protrudes outwardly from the tank unit, and a pin hole provided in a second axial end portion of the tank unit so as to open outwardly; wherein an axis of the tank unit, an axis of the valve device and a center line of the pin hole are disposed on a straight line, so that the valve device and the pin hole are used to position the gaseous fuel tank horizontally; wherein the cylindrical tank unit comprises: an inner shell unit, and an outer shell of fiber reinforced polymer which covers the inner shell unit; the pin hole is defined by a pin hole formed body; wherein the pin hole formed body is embedded in the outer shell unit and comprises a cylindrical body having an open end face in which the pin hole is formed, and a mounting flange residing at the closed end of the cylindrical body and joined to the inner shell unit; and wherein the open end face of the cylindrical body is flush with an outer surface of the outer shell unit.