Patent ID: 11933325
Assignee: ZEROAVIA, INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. A method for providing liquid hydrogen (LH2) fuel to a fuel cell-powered vehicle, comprising the steps of:
(a) providing LH2 fuel storage system as claimed in claim 1, the system including a main LH2 storage fuel tank configured for close to ambient pressure storage of LH2 and one or more gas accumulator tanks (GATs) smaller than the main fuel tank and configured for storage of LH2 and feeding of pressurized LH2 to the fuel cell;
(b) cooling the one or more GATs by heat transfer with LH2 from the main LH2 storage fuel tank;
(c) transferring a quantity of LH2 from the main LH2 storage fuel tank to a cooled GAT and raising pressure of the LH2 in the cooled GAT to a working pressure suitable for feeding the fuel cell by heat transfer with warm working fluid from the fuel cell-powered vehicle; and
(d) feeding the LH2 at working pressure to the fuel cell.