Patent ID: 11920733
Assignee: ENEOS CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B  G  Y | IPC B  F  G

Claim 11:
12. A hydrogen filling device comprising:
a measuring machine configured to measure a filling amount of hydrogen gas during filling by using a flowmeter when a tank of a vehicle powered by the hydrogen gas is filled with the hydrogen gas;
a filling amount calculation circuit configured to calculate a filling amount of the hydrogen gas into the tank from the measuring machine by using a pressure, a temperature, and a volume of the tank during the filling;
a determination circuit configured to compare the filling amount calculated and the filling amount measured at a same timing during the filling and to determine whether or not the flowmeter fails according to a comparison result; and
an output circuit configured to output an alarm indicating a failure of the flowmeter during the filling of the hydrogen gas, in a case that it is determined that the flowmeter fails.