초록 ▼

A fuel cell enhancing the utility rate of supplied gas includes a separator having a plurality of holes extending therethrough and a plurality of ribs communicating between mutually confronting holes. Oxidizing gas supplied into the fuel cell passes through a first oxidizing gas feed manifold formed

A fuel cell enhancing the utility rate of supplied gas includes a separator having a plurality of holes extending therethrough and a plurality of ribs communicating between mutually confronting holes. Oxidizing gas supplied into the fuel cell passes through a first oxidizing gas feed manifold formed by a first hole, is distributed into a first unit cell inside oxidizing gas passage formed by a first rib, and is merged in an oxidizing gas exhaust manifold formed by a second hole. This oxidizing gas is guided into a return plate disposed at the end of the fuel cell, is further led into a second oxidizing gas feed manifold, and is distributed into a second unit cell inside gas passage. The oxidizing gas sequentially passes through plural unit cell inside oxidizing gas passages.

대표청구항 ▼

[ What is claimed is:] [1.]1. A separator for a fuel cell, the fuel cell being formed of an electrolyte layer and an electrode forming member laminated together to form a gas passage inside the fuel cell, the separator comprising:a plurality of first holes extending through the separator in a thickn

[ What is claimed is:] [1.]1. A separator for a fuel cell, the fuel cell being formed of an electrolyte layer and an electrode forming member laminated together to form a gas passage inside the fuel cell, the separator comprising:a plurality of first holes extending through the separator in a thickness direction thereof;a plurality of first cell inside passage forming structures extending along a first surface of the separator, each first cell inside passage forming structure forming, when the separator is installed in a fuel cell, a first cell inside passage fluidly connecting two of the first holes, each of the first cell inside passage forming structures having a concave section, wherein the first cell inside passage forming structures are formed so that the first cell inside passages are fluidly sealed from one another;wherein all of the first cell inside passages are disposed adjacent to one another,wherein at least two of the first holes extend along a first side of the separator and at least two of the first holes extend along an opposite side of the separator,wherein at least one first cell inside passage extends along the first surface of the separator away from an upstream one of the two first holes on the first side of the separator toward an upstream one of the two first holes on the opposite side of the separator,wherein the upstream one of the two first holes on the opposite side of the separator is coupled to a downstream one of the two first holes on the opposite side of the separator, andfurther wherein at least one first cell inside passage returns from the downstream one of the two first holes on the opposite side of the separator to a downstream one of the two first holes on the first side of the separator.