Pumped two-phase fuel cell cooling
US12347896B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 12, 2023 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Jun 12, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cooling system for a fuel-cell system onboard a vehicle such as an aircraft in one embodiment employs the latent heat of evaporation of a two-phase coolant to reduce mass and parasitic power requirements of the cooling system. In another embodiment the cooling system has a primary ambient air heat exchanger coolant loop for cooling the fuelcell system, and a secondary coolant loop comprising a fluid circuit configured to circulate a coolant in thermal contact with a phase-change material (PCM) in thermal contact with the fuel-cell to absorb heat from the fuel-cell. The secondary coolant loop includes a heat pump for cooling the PCM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.