Component of a fuel system, fuel system and method for operating the same

A component of a fuel system, comprising:

• a fuel cap including a head portion connected to a neck portion, wherein the head portion includes an inner surface and an outer surface, wherein the neck portion includes an inner surface and an outer surface, wherein the head portion defines:
• a fluid pressure relief conduit that extends into the head portion from a first opening formed in the outer surface of the head portion, and
• a relief valve passage that extends into and through the head portion from a second opening formed in the outer surface of the head portion and terminates at a valve head opening formed by the inner surface of the head portion, wherein the relief valve passage intersects with and is in fluid communication with the fluid pressure relief conduit;
• wherein the inner surface of the head portion and the inner surface of the neck portion cooperate to form
• a fuel cap cavity, wherein the fluid cap cavity is fluidly-connected to the fluid pressure relief conduit by way of the valve head opening formed by the inner surface of the head portion;
• a relief valve movably arranged within the relief valve passage for permitting selective fluid communication of the fuel cap cavity with the fluid pressure relief conduit;
• a locking apparatus arranged within the fuel cap cavity, wherein the locking apparatus includes a locking pin that extends through a locking pin passage formed by the neck portion of the fuel cap, wherein the locking pin extends through the locking pin passage from the inner surface of the neck portion and beyond the outer surface of the neck portion;
• a support member connected to the inner surface of the neck portion and arranged within the fuel cap cavity, wherein the support member includes an upper surface and a lower surface;
• and
• a flange connected to the upper surface of the support member and the inner surface of the head portion, wherein the flange is connected to the locking apparatus.