Patent ID: 9109750
Filing Date: 2015-08-18
Classification: F17C,Y02E,Y02T

Abstract:
1. A gas filling method for filling gas into a tank having a liner and a reinforcement layer formed on an outer peripheral surface of the liner, comprising: detecting a tank pressure and a tank temperature; calculating an amount of a gap between the liner and the reinforcement layer before filling the gas into the tank on the basis of the tank pressure and the tank temperature and a prestored map; calculating an elongation of the liner that is required to bring the calculated gap amount to zero and determining whether the calculated elongation falls below a predetermined threshold; predicting whether a load larger than or equal to an allowable amount acts on the liner by the gas filling on the basis of the calculated elongation; and when it is predicted that the load larger than or equal to the allowable amount acts on the liner, limiting a filling flow rate at which the gas is filled into the tank in comparison with a case where it is predicted that the load larger than or equal to the allowable amount does not act on the liner.