Patent ID: 7393605

Claim:
A fuel cell stack end unit for a fuel cell stack having a plurality of fuel cells stacked in a first direction and an external manifold disposed externally of said fuel cell stack and adjacent a first face of said fuel cell stack for receiving a fuel cell stack outlet gas of said fuel cell stack, said fuel cell stack end unit for stacking in said first direction adjacent an end fuel cell in said fuel cell stack, said fuel cell stack end unit comprising: an assembly having: a first wall being adjacent said end cell when said fuel cell stack end unit is stacked in said first direction in said fuel cell stack; a second wall opposing said first wall; a first side wall connecting said first and second walls and being on the side of said first face of said fuel cell stack when said end unit is stacked in said first direction in said fuel cell stack; an inlet port situated in said first side wall so as to be encompassed by said external manifold when said fuel cell stack end unit is stacked in said first direction in said fuel cell stack, said inlet port receiving the fuel cell stack outlet gas from said external manifold when said fuel cell outlet gas is in said external manifold for passage into said assembly; and an outlet port for conveying the fuel cell stack outlet gas when in said assembly from said assembly.