Thermal pumping of liquid hydrogen
US11933325B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 2023 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Aug 11, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B1/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A liquid hydrogen (LH2) fuel storage system for a fuel cell-powered vehicle, and method includes 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 LH2 storage fuel tank and configured for elevated pressure storage of LH2 and for feeding pressurized LH2 to the fuel cell, wherein the one or more GATs each have a cooling interface configured to cool the GAT employing LH2 from the main LH2 storage fuel tank, and a heating interface configured to heat contents of the GAT with warm working fluid from the fuel cell-powered vehicle whereby to raise pressure of the LH2 in the GAT to a working pressure for feeding the LH2 to the fuel cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.