SELF-CONTAINED FUELING STATION

A self-contained fueling station is paired with an external fuel tank and configured to transfer liquid fuel back-and-forth to maintain a storage pressure in the external fuel tank, increase to an operational pressure and return to the storage pressure. The fueling station is equipped with an internal fuel tank with a fuel expansion accumulator and float valve, a bi-directional pump and multiple relief valves to transfer liquid fuel and maintain the desired pressure. The external fuel tank may be a fixed volume or an expandable volume.