Abstract: A humidifier for a fuel cell includes a humidifying unit that produces humidified air. The humidifying unit includes: a first separator having dry gas channels; a second separator having water-containing gas channels; a humidifying membrane that provides moisture contained in gas flowing through the water-containing gas channels to dry air flowing through the dry gas channels to produce the humidified air; protective films that reinforce the humidifying membrane; and a sealing material that is provided along a first outer edge portion of the humidifying membrane with the humidifying membrane and the protective films stacked together, and that seals between the dry gas channels and the water-containing gas channels. The humidifying membrane has a close contact region between the first outer edge portion of the humidifying membrane and a second outer edge portion of the protective film.

Abstract: A humidifier that can maintain high sealing performance between a separator and a water exchange membrane without applying an excessive external force to the separator even in the event of temperature change is provided. Humidifying modules each include plate-shaped separators each including a dry gas-side water exchange portion formed on one side and a water-containing gas-side water exchange portion formed on the other side. The humidifying module is structured by stacking a plurality of the separators in a state in which a water exchange membrane is disposed between the dry gas-side water exchange portion and the water-containing gas-side water exchange portion facing each other. A loop-shaped partition member that forms a pressurization space between the adjacent humidifying modules is provided in a state in which the humidifying modules are stacked to guide a fluid into the pressurization space.

Abstract: A gas and liquid separator includes a first separating portion configured to separate a liquid droplet from a first exhaust gas discharged from a negative electrode of a fuel cell, a first container accommodating the first separating portion, a first storage reservoir storing water flowing down from the first separating portion, a second container provided at a lower side of the first storage reservoir, a second storage reservoir provided at a lower portion of the second container, and a valve apparatus including a valve discharging water stored in the first storage reservoir, wherein a second exhaust gas discharged from a positive electrode flows in the second container, and water discharged from the first storage reservoir is stored in the second storage reservoir.

Abstract: A humidification device includes a humidification section that humidifies taken-in air and a cover that covers the humidification section. A space is provided between the humidification section and the cover. A supply port for sending out humidified air humidified by the humidification section is further provided. The space communicates with the supply port, and the humidified air flows through the space, thereby utilizing air in the space as a heat insulation layer.

Abstract: A gas and liquid separator includes a first separating portion configured to separate a liquid droplet from a first exhaust gas discharged from a negative electrode of a fuel cell, a first container accommodating the first separating portion, a first storage reservoir storing water flowing down from the first separating portion, a second container provided at a lower side of the first storage reservoir, a second storage reservoir provided at a lower portion of the second container, and a valve apparatus including a valve discharging water stored in the first storage reservoir, wherein a second exhaust gas discharged from a positive electrode flows in the second container, and water discharged from the first storage reservoir is stored in the second storage reservoir.

Abstract: A humidification device includes a humidification section that humidifies taken-in air and a cover that covers the humidification section. A space is provided between the humidification section and the cover. A supply port for sending out humidified air humidified by the humidification section is further provided. The space communicates with the supply port, and the humidified air flows through the space, thereby utilizing air in the space as a heat insulation layer.

Abstract: A fluid control valve includes: a valve housing including a flow path formed therein and having inflow and outflow ports for a fluid; a valve seat formed in the flow path; a driving device mounted in the valve housing; a valve shaft configured to be moved by being driven by the driving device; a valve body mounted on the valve shaft so as to open or close the flow path by being separated from or brought into contact with the valve seat; and a diaphragm formed in a form of an annular thin film and including outer and inner circumferential portions, and configured to move together with the valve shaft in a state where one side thereof faces a fluid chamber including the flow path and the valve seat so as to allow the fluid to flow therethrough, and the other side thereof faces an atmosphere chamber.

Abstract: A fluid control valve includes a shaft member configured to move along an axis by drive force from a drive source, and a holding member including a cylindrical portion in which a second end portion of the shaft member is placed by insertion with a predetermined clearance provided in a radial direction. The holding member includes a valve element and a seal member. The fluid control valve includes a housing including an inlet port, an outlet port and a valve seat. The cylindrical portion includes a protrusion protruding radially inward. The second end portion of the shaft member includes a first region including a first contact portion configured to be in contact with a bottom portion of the cylindrical portion. The second end portion of the shaft member includes a second region including a second contact portion being in contact with the protrusion.

Abstract: A fluid control valve includes: a shaft member that moves along an axis of the shaft by a driving force from a driving source connected to one end of the shaft member; a valve body that is connected to the other end of the shaft member and includes a flat plate shaped main body portion having an outer periphery to which a sealing member is fixed; a housing that includes an inlet and an outlet, has an annular valve seat, and accommodates the shaft member and the valve body, in which the valve body is capable of swinging with respect to the shaft member, the valve seat includes an abutment portion and a protruding portion, and a tip end of the protrusion portion abuts on the main body portion in the state where the sealing member abuts on the abutment portion, so as to regulate movement of the valve body.

Abstract: A fluid control valve includes a shaft member configured to move along an axis by drive force from a drive source, and a holding member including a cylindrical portion in which a second end portion of the shaft member is placed by insertion with a predetermined clearance provided in a radial direction. The holding member includes a valve element and a seal member. The fluid control valve includes a housing including an inlet port, an outlet port and a valve seat. The cylindrical portion includes a protrusion protruding radially inward. The second end portion of the shaft member includes a first region including a first contact portion configured to be in contact with a bottom portion of the cylindrical portion. The second end portion of the shaft member includes a second region including a second contact portion being in contact with the protrusion.

Abstract: A fluid control valve includes: a shaft member that moves along an axis of the shaft by a driving force from a driving source connected to one end of the shaft member; a holding member including a bottomed tubular portion into which the other end of the shaft member is inserted with a radial predetermined gap and which has a recess formed to be recessed radially inward from a surface of the tubular portion, and a valve body formed by fixing a sealing member to an outer periphery of a flat plate shaped main body portion that extends radially outward from the tubular portion; a housing that includes an inlet and an outlet of a fluid, has an annular valve seat on which the valve body abuts to block a communication between the inlet and the outlet, and accommodates the shaft member and the holding member.

Abstract: A fluid control valve includes: a shaft member that moves along an axis of the shaft by a driving force from a driving source connected to one end of the shaft member; a valve body that is connected to the other end of the shaft member and includes a flat plate shaped main body portion having an outer periphery to which a sealing member is fixed; a housing that includes an inlet and an outlet, has an annular valve seat, and accommodates the shaft member and the valve body, in which the valve body is capable of swinging with respect to the shaft member, the valve seat includes an abutment portion and a protruding portion, and a tip end of the protrusion portion abuts on the main body portion in the state where the sealing member abuts on the abutment portion, so as to regulate movement of the valve body.

Abstract: A fluid control valve includes: a shaft member that moves along an axis of the shaft by a driving force from a driving source connected to one end of the shaft member; a holding member including a bottomed tubular portion into which the other end of the shaft member is inserted with a radial predetermined gap and which has a recess formed to be recessed radially inward from a surface of the tubular portion, and a valve body formed by fixing a sealing member to an outer periphery of a flat plate shaped main body portion that extends radially outward from the tubular portion; a housing that includes an inlet and an outlet of a fluid, has an annular valve seat on which the valve body abuts to block a communication between the inlet and the outlet, and accommodates the shaft member and the holding member.

Abstract: A fluid control valve includes: a valve housing including a flow path formed therein and having inflow and outflow ports for a fluid; a valve seat formed in the flow path; a driving device mounted in the valve housing; a valve shaft configured to be moved by being driven by the driving device; a valve body mounted on the valve shaft so as to open or close the flow path by being separated from or brought into contact with the valve seat; and a diaphragm formed in a form of an annular thin film and including outer and inner circumferential portions, and configured to move together with the valve shaft in a state where one side thereof faces a fluid chamber including the flow path and the valve seat so as to allow the fluid to flow therethrough, and the other side thereof faces an atmosphere chamber.

Abstract: A fuel cell component includes a fuel cell component body having a surface, and an identification information display portion provided on the fuel cell component body. The identification information display portion is provided at a recessed region of the fuel cell component body recessed relative to the surface.

Abstract: To provide a fuel cell and an oxidant distributing plate for the fuel cell. A water created in the fuel cell is used to humidify an oxidant gas and/or a fuel flowing in an opposite passage opposite to a MEA. The fuel cell includes a MEA 1, an oxidant distributing plate 3 disposed facing to an oxidant pole for supplying an oxidant gas thereto, and a fuel distributing plate 4 disposed facing to an fuel pole for supplying the fuel thereto. At least one of the oxidant distributing plate 3 and the fuel distributing plate 4 is provided with an opposite passage 31, 41 formed on an opposite surface opposite to the MEA, and a reaction passage 32, 42 formed on a facing surface facing to the MEA, and communicated with the opposite passage 31, 41.

Abstract: A fuel cell (10) includes a lamination (11) of a plurality of unit cells (30), current collector plates (12, 12) arranged at both ends of the lamination (11), end plates 16, 16 respectively provided outside the current collector plates (12, 12) with 5 insulating plates (14, 14) interposed therebetween, and fastening members (18) for fastening the end plates (16, 16) in the laminating direction to apply desired pressing force to the lamination (11). A barcode (41) corresponding to particular information relating to a unit cell (30) is provided on the exposed side surface of a separator (38) of the unit cell (30). According to this fuel cell (10), the barcode 41 can be easily read requiring no disassembly of the fuel cell (10). Moreover, as the information relating to the fuel cell can be obtained from the barcode (41), the information that cannot be determined from outer appearance can be obtained, resulting in improved service operations.

Abstract: A fuel cell component includes a fuel cell component body having a surface, and an identification information display portion provided on the fuel cell component body. The identification information display portion is provided at a recessed region of the fuel cell component body recessed relative to the surface.

Abstract: In a fuel cell separator, reaction gas fluid grooves form a serpentine fuel gas flow path wherein a plurality of parallel flow paths reverse directions at multiple stages, and the ratio of a fluid groove width to a ridge width downstream along the fluid path is larger than the ratio upstream along the path. Furthermore, the ridge area per unit area is larger upstream than downstream along the fluid path. Uniformity inside a fuel cell is as a result enhance, to enable more efficient and stable operation.

Abstract: To provide a fuel cell and an oxidant distributing plate for the fuel cell. A water created in the fuel cell is used to humidify an oxidant gas and/or a fuel flowing in an opposite passage opposite to a MEA. The fuel cell includes a MEA 1, an oxidant distributing plate 3 disposed facing to an oxidant pole for supplying an oxidant gas thereto, and a fuel distributing plate 4 disposed facing to an fuel pole for supplying the fuel thereto. At least one of the oxidant distributing plate 3 and the fuel distributing plate 4 is provided with an opposite passage 31, 41 formed on an opposite surface opposite to the MEA, and a reaction passage 32, 42 formed on a facing surface facing to the MEA, and communicated with the opposite passage 31, 41.