Patent ID: 8614030

Claim:
An assembly for a fuel cell, comprising: a fluid flow field plate having a field plate channel in a surface of the fluid flow field plate that extends across the surface in a pattern, the fluid flow field plate comprising a manifold for supplying water to the field plate channel, the field plate channel comprising a flow path that extends between entry and exit points of the field plate channel; a distribution foil having distribution channels in a surface of the distribution foil, the distribution foil providing an interface between the manifold and different positions along the flow path between the entry and exit points; a cover foil extending over the distribution foil to enclose the distribution foil channels and thereby form water injection conduits between the distribution foil and the cover foil, the water injection conduits each having a corresponding water injection conduit outlet, each water injection conduit outlet being over the field plate channel to thereby allow water to be injected directly into the field plate channel, wherein groups of water injection conduit outlets of the water injection conduits are configured to inject water at the different positions along the flow path of the field plate channel between the entry and exit points.