초록 ▼

A gas injection system for treating an electrochemical fuel cell stack assembly, wherein the fuel cell stack assembly is repeatedly injected with an oxidizing gas at critical locations along the fuel path of the fuel cell stack assembly so that the fuel supply and the oxidizing gas will chemically r

A gas injection system for treating an electrochemical fuel cell stack assembly, wherein the fuel cell stack assembly is repeatedly injected with an oxidizing gas at critical locations along the fuel path of the fuel cell stack assembly so that the fuel supply and the oxidizing gas will chemically react to reduce at least one harmful contaminant within the fuel supply. The preferred gas injection system treats a fuel cell stack assembly to reduce the debilitating effects of extraneous carbon monoxide within the fuel supply thereby preserving the efficient operation of the fuel cell stack assembly.

대표청구항 ▼

[ What is claimed is:] [1.]1. A fuel cell stack assembly having a plurality of gas injection locations for treating a fuel supply in said fuel cell stack assembly, comprising:said fuel cell stack assembly including a plurality of fuel cells;a fuel inlet manifold arranged to be in fluid communication

[ What is claimed is:] [1.]1. A fuel cell stack assembly having a plurality of gas injection locations for treating a fuel supply in said fuel cell stack assembly, comprising:said fuel cell stack assembly including a plurality of fuel cells;a fuel inlet manifold arranged to be in fluid communication with said fuel cell stack assembly for directing said fuel supply to said fuel cells;a fuel exhaust manifold arranged to be in fluid communication with saud fuel cell stack assembly for exhausting said fuel supply from said fuel cells, said fuel supply traveling a fuel path from said fuel inlet manifold, through said fuel cell stack assembly and out said fuel exhaust manifold; anda downstream treatment means for injecting said fuel supply with an oxidizing gas at a first location along said fuel path downstream of said fuel inlet manifold but before said fuel exhaust manifold.