Ascertaining fuel cell inlet humidity by means of pressure sensors, and a mass flow rate-dependent control of the humidifier bypass
US10122033B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2013 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Jan 9, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a fuel cell arrangement (1) having at least one fuel cell (2) with a cathode (3) and an anode. The cathode (3) and the anode each have a reactant feed (4) and a reactant discharge (5), a humidifying device (10) and sensors (12, 13, 14) being provided at least at one of the reactant feeds (4). In particular, the sensors (12, 13, 14) are at least one fluid mass sensor (12) and two pressure sensors (13, 14), the fluid mass sensor (12) and one of the pressure sensors (13) being arranged upstream of the humidifying device (10) and one of the pressure sensors (14) being arranged downstream of the humidifying device (10). The humidifying device (10) can be operated in a controlled manner on the basis of the measurements of the sensors (12, 13, 14). The invention further relates to a method for controlling the humidity of a reactant for such a fuel cell arrangement (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.