摘要:
A fuel cell includes an electrolyte electrode assembly and separators. The separator includes first through third plates which are stacked together. A fuel gas channel connected to a fuel gas supply passage is formed between the first and third plates. The fuel gas channel forms a fuel gas pressure chamber between the first and third circular disks. Further, an oxygen-containing gas channel connected to an oxygen-containing gas supply passage is formed between the second and third plates. The oxygen-containing gas channel forms an oxygen-containing gas pressure chamber between the second and third circular disks.
摘要:
In a heat exchanger which is constructed such that heat-transfer plates S1, S2 in the form of a quadrilateral are bent at fold lines in a zigzag fashion to form combustion gas passages 4 and air passages 5 alternately in a circumferential direction, arrangement is made to enhance material yield and to facilitate brazing of components for formation of a fluid duct. Thus radially outer peripheral walls 6, 8o, 10o and radially inner peripheral walls 7, 8i, 10i, respectively, are brazed to fold lines at outer peripheries and inner peripheries of the heat-transfer plates S1, S2 to form a duct 13 continuous to a combustion gas inlet 11, a duct 14 continuous to a combustion gas outlet 12, a duct 17 continuous to an air passage inlet 15, and a duct 18 continuous to an air passage outlet 16.
摘要:
A fuel cell is formed by stacking an electrolyte electrode assembly and a pair of separators alternately. Each of the separators includes first to third plates. A first cylindrical portion provided at a first small diameter end portion of one separator is inserted into a fuel gas supply passage of the other separator. The first cylindrical portion is subjected to a crimping process such that a joint portion as a predetermined overlapping portion is formed integrally with the one separator and the other separator.
摘要:
A fuel gas channel is divided into first and second fuel gas channel units by a partition. The first fuel gas channel unit has a fuel gas inlet for supplying a fuel gas before consumption from a fuel gas supply passage to a fuel gas flow field, and the second fuel gas channel unit has an exhaust fuel gas diverging holes for diverging at least some of an exhaust fuel gas used at an anode from the fuel gas flow field. The second fuel gas channel unit is connected to the fuel gas supply passage through an exhaust fuel gas diverging passage.
摘要:
A fuel cell includes an electrolyte electrode assembly and separators. The separator includes first through third plates which are stacked together. A fuel gas channel connected to a fuel gas supply passage is formed between the first and third plates. The fuel gas channel forms a fuel gas pressure chamber between the first and third circular disks. Further, an oxygen-containing gas channel connected to an oxygen-containing gas supply passage is formed between the second and third plates. The oxygen-containing gas channel forms an oxygen-containing gas pressure chamber between the second and third circular disks.
摘要:
A fuel cell includes electrolyte electrode assembly and separators. An annular member and a ring foil are provided between the separators. The annular member is provided around an outer circumferential portion of the electrolyte electrode assembly, and includes grooves for discharging a first exhaust gas FGoff which has been consumed at an anode to the outside of the electrolyte electrode assembly. The ring foil is provided adjacent to a cathode, and extends from a position between an outer end of the electrolyte electrode assembly to a position between the annular member and the separator.
摘要:
A fuel cell includes electrolyte electrode assembly and separators. An exhaust gas separation member is provided between the separators. The exhaust gas separation member includes an annular portion formed around an outer circumferential portion of the electrolyte electrode assembly, a seal portion fixed to the annular portion and sandwiched between the outer end of the electrolyte electrode assembly and one of the separators, and a stopper provided integrally with the annular portion and fixedly engaged with the other separator.
摘要:
A device and a process for producing a corrugated plate having a plurality of bent-into-contact portions extending in parallel on one face of a metal plate employs a number of steps. A first pressing step sequentially molds a plurality of U-shaped bent portions in the metal plate. A second pressing step sequentially molds the bent-into-contact portions by sequentially crushing the plurality of U-shaped bent portions. In the first pressing step, the U-shaped bent portions are fed in a direction orthogonal to the direction of the U-shaped bent portions, and positioned, and are pressed in a state in which the position is released. In the second pressing step, another face of the metal plate is pressed flat while molding the bent-into-contact portions by pressing the U-shaped bent portions from both sides.
摘要:
In the fuel cell, eight electrolyte electrode assemblies are sandwiched between a pair of separators. The separator includes a first plate, a second plate, and a third plate, the first plate stacked on the third plate, and the third plate stacked on the second plate. A fuel gas channel connected to a fuel gas supply passage is formed between the first and third plates. The fuel gas channel forms a fuel gas pressure chamber between a first circular disk of the first plate and a third circular disk of the third plate. Further, an oxygen-containing gas channel open to the outside is formed between the second and third plates. The oxygen-containing gas channel forms an oxygen-containing gas pressure chamber between the second and third circular disks.
摘要:
A fuel cell includes separators and electrolyte electrode assemblies in a first area between the separators. Each separator includes a first plate and a second plate stacked together to form a second area between the first plate and the second plate. The second area is divided by an outer ridge into a fuel gas channel, and an oxygen-containing gas channel. The fuel gas channel formed in one separator is connected to a fuel gas flow passage in the first area through fuel gas inlets for supplying a fuel gas to anodes. The oxygen-containing gas channel in the other separators is connected to an oxygen-containing gas flow passage in the first area through oxygen-containing gas inlets for supplying an oxygen-containing gas to cathodes.