Fuel cell stack with even distributing gas manifolds
US7531264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2004 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Jun 17, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of controlling fluid flow to a stack of fuel cell flow field plates comprises providing in each fuel cell flow field plate of the stack of plates a fluid supply manifold aperture for conducting a supply of fluid to a number of the plates in the stack, the fluid supply manifold apertures forming an elongated fluid supply manifold extending through the stack, flowing the supply of fluid into the fluid supply manifold and laterally diverting a part of the supply of fluid to feed each of the number of the plates. The plates are each fed in parallel from the fluid supply manifold, and the laterally diverting is performed in a manner to avoid turbulence in the fluid supply manifold from adversely affecting supply of fluid to downstream ones of the number of plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.