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US 6,472,095 B2Granted
Hybrid fuel cell reactant flow fields
AssigneeUTC Fuel Cells, LLC
InventorPaul R. Margiott
Life of this patent
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Abstract
A fuel cell reactant flow field (16) has flow-through channels (18) joined by an interface (26) with interdigitated flow channels (21, 22). The interface may be defined by a flow reversing manifold (35) or may exist between flow reversing manifolds (43, 48), remotely thereof.
Claims8
A fuel cell with a reactant flow field plate comprising:
- a reactant inlet and a reactant outlet;
- a plurality of flow-through reactant flow field channels wherein reactant gas is immediately dispersed from the inlet to flow through the flow-through channels
- a plurality of interdigitated reactant flow field channels;
- and
- a flow transition for directing flow between said flow-through channels and said interdigitated channels, said channels and said transition extending between said inlet and said outlet.
2 more elements
Dependencies are inferred from the claim text.