Fuel cell valve configuration
US11605826B2 · kind B2 · utility
0Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2019 |
| Grant date | Mar 14, 2023 |
| Priority date | — |
| Expiry date | Jan 18, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illustrative example fuel cell reactant flow control valve assembly includes a pneumatic valve configured to allow reactant flow when the pneumatic valve is in an open condition and to prevent reactant flow when the pneumatic valve is in a closed condition. A control valve selectively allows a pressure of the reactant to provide pneumatic pressure to maintain the pneumatic valve in the open condition. The control valve selectively vents the pneumatic pressure reservoir to control a rate at which the pneumatic pressure decreases and a rate at which the pneumatic valve changes from the open condition to the closed condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.