Patent ID: 6904944

Claim:
A fuel filling device which fills hydrogen gas or compressed natural gas into a fuel tank of a vehicle as fuel, comprising: a fuel supply adjusting section which adjusts an amount of the fuel supplied; a fuel feed line which feeds the fuel from the fuel supply adjusting section to the vehicle; a nozzle to be removably coupled to the vehicle which supplies the fuel from the fuel feed line to the vehicle; a fuel distribution line provided in the fuel supply adjusting section, to guide the fuel to the fuel feed line; a discharge device connected directly to the fuel distribution line, and located within the fuel distribution line, said discharge device discharging the fuel within the fuel feed line to the outside; a first cutoff valve provided in the fuel distribution line; a second cutoff valve provided in the discharge device; and a control section which closes the first cutoff valve and opens the second cutoff valve following completion of filling of the fuel, thereby discharging the fuel within the fuel feed line to the outside.