Abstract: In this fuel cell vehicle, a radiator, a protruding region of a casing, and a connecting bar of a fuel cell stack are arranged in a front box in the listed order from the front toward the rear in the direction in which the vehicle travels. A first end plate and a second end plate are fixed directly on a frame member via mounting members, and the frame member is fixed to a vehicle body frame. After an external load has been transmitted from the radiator and the protruding region of the casing to the first end plate and the second end plate, the external load is transmitted to the vehicle body frame via a side frame.

Abstract: A fuel cell vehicle includes a fuel cell stack, a front side panel, and a fuel gas device. The fuel cell stack includes a plurality of fuel cells, one end and another end, a first end plate, and a second end plate. The first end plate is disposed at the one end. The second end plate is disposed at the another end. The front side panel is connected to side surfaces of the first and second end plates. The side surfaces face forward in a vehicle driving direction. The front side panel includes a first protruding end portion that protrudes from the first end plate outward in a vehicle width direction. The fuel gas device is disposed on the first end plate so as to be covered by the first protruding end portion when seen from a front side in the vehicle driving direction.

Abstract: A second end plate constituting a fuel cell stack is provided with a cooling medium supply manifold member and a cooling medium discharge manifold member. The second end plate is also provided with a mount member that affixes the fuel cell stack to an automobile body frame and covers the cooling medium discharge manifold member.

Abstract: In a fuel cell stack, fuel cells are stacked together in a stacking direction, and the stacked fuel cells are placed in a casing. An upper side panel of the casing includes an outer plate and an inner plate which are joined together. Flat plate members are interposed between the outer plate and the inner plate at positions corresponding to both end portions of the outer plate and the inner plate extending in the stacking direction. The flat plate members are thicker than the outer plate and the inner plate.

Abstract: A fuel cell power plant provided in a vehicle includes a power plant unit, a frame including a front part of the vehicle, and an impact cushioning member having a protective space therein and surrounding the power plant unit. The power plant unit includes a fuel cell stack, a hydrogen supply device to supply hydrogen to the fuel cell stack to generate electric power, and a high-voltage device to receive and manage the electric power generated. A gap is provided between the power plant unit and the impact cushioning member so that the power plant unit moves in a case where a collision load is applied from an outside of the vehicle.

Abstract: A group of fuel gas system devices are provided at a first end plate of a fuel cell system through a block member. A cover member is provided at the first end plate to cover the group of the fuel gas system devices. Support rod members are provided at the first end plate. The support rod members protrude outward in a stacking direction to support the cover member at the front ends of the support rod members.

Abstract: A fuel cell stack includes fuel cells, first and second rectangular end plates, and side panels. The fuel cells are stacked in a stacking direction to form a stacked fuel cells having a first end and a second end opposite to the first end in the stacking direction. The side panels are disposed between and fixed to the first and second rectangular end plates to surround the stacked fuel cells. The side panels include a first side panel and a second side panel opposite to the first side panel. The first side panel and the second side panel each have an asymmetric shape and are disposed so as to be point-symmetric to each other with respect to a fuel-cell central axis extending in the stacking direction and passing through a center of the fuel cells.

Abstract: A stack case of a fuel cell vehicle contains a fuel cell stack, and the stack case is mounted in a front room. Openings are formed at one pair of diagonal positions of an upper panel forming an upper surface of the stack case. The inner space of the stack case is connected to the outside through the openings. Exhaust gas ducts connected to the openings are opened to the outside of the front room.

Abstract: An end plate of a fuel cell stack is directly fixed to a humidifier. A resin pipe is attached to an oxygen-containing gas outlet of an end plate through a resin coupling pipe. The resin pipe includes one end having a large diameter and the other end having a small diameter. The other end is provided at an off gas supply channel of the humidifier. The off gas supply channel includes an inclined channel. The other end extends up to an end of the inclined channel where inclination of the inclined channel is started. An off gas ejection port is formed at the other end. The off gas ejection port is opened to the end of the inclined channel where inclination is started. Condensed water returned along the inclined channel flows from the off gas ejection port into the resin pipe.

Abstract: A fuel cell vehicle is provided with a fuel cell stack and a vehicle body frame for mounting the fuel cell stack in a front box. The fuel cell stack and a frame member have portions overlapping with each other in a vehicle width direction in a plan view of the vehicle. A vehicle-forward end portion of the fuel cell stack is positioned closer to the rear of the vehicle than a vehicle-forward end portion of the frame member. A vehicle-rearward end portion of the fuel cell stack is positioned closer to the front of the vehicle than a vehicle-rearward end portion of the frame member.

Abstract: A fuel cell stack includes a stack of fuel cells, a first end plate, a second end plate, a fluid manifold member, and a protrusion. In the stack of fuel cells, the fuel cells are stacked in a stacking direction. The first end plate is disposed on a first end of the stack of fuel cells in the stacking direction. The second end plate is disposed on a second end of the stack of fuel cells in the stacking direction. The fluid manifold member is disposed on at least one of the first and second end plates. The fluid manifold member allows a fluid to flow through the fuel cells. The protrusion is disposed around a joint region at which the fluid manifold member is joined to the at least one of the first and second end plates. The protrusion protrudes outward in the stacking direction.

Abstract: A fuel cell vehicle is provided with a fuel cell stack and a vehicle body frame for mounting the fuel cell stack in a front box. The fuel cell stack and a frame member have portions overlapping with each other in a vehicle width direction in a plan view of the vehicle. A vehicle-forward end portion of the fuel cell stack is positioned closer to the rear of the vehicle than a vehicle-forward end portion of the frame member. A vehicle-rearward end portion of the fuel cell stack is positioned closer to the front of the vehicle than a vehicle-rearward end portion of the frame member.

Abstract: A fuel cell vehicle includes a fuel cell stack, a front side panel, and a fuel gas device. The fuel cell stack includes a plurality of fuel cells, one end and another end, a first end plate, and a second end plate. The first end plate is disposed at the one end. The second end plate is disposed at the another end. The front side panel is connected to side surfaces of the first and second end plates. The side surfaces face forward in a vehicle driving direction. The front side panel includes a first protruding end portion that protrudes from the first end plate outward in a vehicle width direction. The fuel gas device is disposed on the first end plate so as to be covered by the first protruding end portion when seen from a front side in the vehicle driving direction.

Abstract: In this fuel cell vehicle, a radiator, a protruding region of a casing, and a connecting bar of a fuel cell stack are arranged in a front box in the listed order from the front toward the rear in the direction in which the vehicle travels. A first end plate and a second end plate are fixed directly on a frame member via mounting members, and the frame member is fixed to a vehicle body frame. After an external load has been transmitted from the radiator and the protruding region of the casing to the first end plate and the second end plate, the external load is transmitted to the vehicle body frame via a side frame.

Abstract: A group of fuel gas system devices are provided at a first end plate of a fuel cell system through a block member. A cover member is provided at the first end plate to cover the group of the fuel gas system devices. Support rod members are provided at the first end plate. The support rod members protrude outward in a stacking direction to support the cover member at the front ends of the support rod members.

Abstract: In a fuel cell stack, fuel cells are stacked together in a stacking direction, and the stacked fuel cells are placed in a casing. An upper side panel of the casing includes an outer plate and an inner plate which are joined together. Flat plate members are interposed between the outer plate and the inner plate at positions corresponding to both end portions of the outer plate and the inner plate extending in the stacking direction. The flat plate members are thicker than the outer plate and the inner plate.

Abstract: Coolant supply passages and coolant discharge passages, for example, two respectively thereof, are disposed on upper and lower side portions of a first end plate of a fuel cell stack. Grooves are formed on a surface of the first end plate for establishing communication between each of the coolant supply passages and the coolant discharge passages. Air, which is introduced upwardly of the coolant discharge passages, is discharged to the coolant supply passages.

Abstract: A fuel cell power plant provided in a vehicle includes a power plant unit, a frame including a front part of the vehicle, and an impact cushioning member having a protective space therein and surrounding the power plant unit. The power plant unit includes a fuel cell stack, a hydrogen supply device to supply hydrogen to the fuel cell stack to generate electric power, and a high-voltage device to receive and manage the electric power generated. A gap is provided between the power plant unit and the impact cushioning member so that the power plant unit moves in a case where a collision load is applied from an outside of the vehicle.

Abstract: An apparatus includes a gas sensor configured to detect a specific gas which is a subject for detection, and inspection gas introduction piping configured to lead an inspection gas to the gas sensor, wherein at least a portion of the inspection gas introduction piping serves as ventilating piping configured to ventilate an inside of a ventilation-requiring device.

Abstract: Coolant supply passages and coolant discharge passages, for example, two respectively thereof, are disposed on upper and lower side portions of a first end plate of a fuel cell stack. Grooves are formed on a surface of the first end plate for establishing communication between each of the coolant supply passages and the coolant discharge passages. Air, which is introduced upwardly of the coolant discharge passages, is discharged to the coolant supply passages.