Fuel cell system
AssigneeToyota
InventorsSho Usami, Tomohiro Ogawa
Life of this patent
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Abstract
To provide a simple and compact fuel cell system that prevents degradation of the performance of a fuel cell stack due to accumulation of impurities and improves fuel efficiency by reducing discharge of a fuel gas. An impurity storage section 30 that communicates with an outlet of an anode gas passage of each cell 20 and stores an impurity in a fuel gas is formed in a fuel cell stack 2. The volume of the impurity storage section 30 is preferably larger than the volume of a fuel gas inlet manifold 26.
Claims6
A fuel cell system that has a fuel cell stack including a plurality of cells and operates with a fuel gas used by each cell for electric power generation effectively confined in said fuel cell stack, wherein an impurity storage section for storing an impurity in the fuel gas that communicates with an outlet of an anode gas passage of each cell and a fuel gas inlet manifold for distributing the fuel gas supplied from the outside of said fuel cell stack to the anode gas passages of the cells are formed in said fuel cell stack, and the volume of said impurity storage section is larger than the volume of said fuel gas inlet manifold.
(canceled)
Dependencies are inferred from the claim text.