A vehicle floor structure includes a center floor panel, a tunnel extending along a central longitudinal axis of the center floor panel, and having a tunnel cavity, a hydrogen tank located in the tunnel cavity of the tunnel, and a tank support frame configured to support the hydrogen tank so that the hydrogen tank is held in the tunnel cavity.

A fuel cell vehicle includes fuel tanks, a first support mechanism, and a restricting member. The fuel tanks are disposed in a vehicle width direction to hare longitudinal directions along a vehicle longitudinal direction. The fuel tanks include first and second fuel tanks. The first fuel tank is provided on an outer side in the vehicle width direction. The second fuel tank is adjacent to the first fuel tank. The second fuel tank has an axial center positioned higher than an axial center of the first fuel tank. In a case where a collision load acts from outside in the vehicle width direction, the first support mechanism supports the fuel tank while allowing the first fuel tank to move toward a lower side of the second fuel tank. The restricting member is provided above the second fuel tank and restricts an upward movement range of the second fuel tank.

A body structure for an automotive vehicle includes an enclosure for a power source, an upper shear structure assembly and a lower shear structure assembly. The enclosure includes a front cross-member, a rear cross-member, a left rocker and a right rocker. The upper and lower shear structure assemblies are disposed across the top and bottom of the enclosure, respectively, and are fastened to respective top and bottom surfaces of the cross-members and rockers. The upper and lower shear structure assemblies may include respective front and rear generally trapezoidal sections configured for attachment to respective front and rear box structures. Each of the shear structure assemblies is effective to dissipate in-plane a portion of an external load imposed upon the enclosure.

An aircraft with a fuselage that accommodates a floor panel and a fuel storage system, wherein the fuel storage system comprises a tank system with at least one main tank 5a that is arranged underneath the floor panel; a cross ventilation system with a plurality of ventilation lines for venting the tank system, wherein the plurality of ventilation lines comprises at least one crossing ventilation line 11a that is routed from a first lateral side of the tank system to an opposite second lateral side of the tank system; and wherein the at least one crossing ventilation line is routed underneath or in the floor panel from the first lateral side of the tank system to the second lateral side of the tank system.

A recreational vehicle includes an interior space having a floor, a first insulating member located below the floor, a second insulating member located below the floor, a chassis located at least in part between the floor and the first insulating member and the floor and the second insulating member, a first enclosed volume defined by the floor, the chassis and the first insulating member, a second enclosed volume defined by the floor, the chassis and the second insulating member, an air flow path between the first enclosed volume and the second enclosed volume, and an air flow path between the interior of the recreational vehicle and the first enclosed volume.

A vehicle body structure includes a battery mounting portion arranged on a floor of a vehicle and having a battery disposed thereon; a first cross member arranged in a front side of the battery mounting portion and reinforcing the floor; a second cross member arranged in a rear side of the battery mounting portion and reinforcing the floor; first and second extension members extending in a longitudinal direction so as to connect the first and second cross members while being spaced apart from each other in a transverse direction, and reinforcing a lower portion of the battery mounting portion; and a coupling structure coupled to the first and second cross members in a state of coupling the battery.

A high-pressure vessel mounting structure includes: a plurality of high-pressure vessels arranged on the upper surface of a bottom wall in a front-rear direction of a vehicle body with a vehicle width direction as an axial direction; a plurality of load transmission members each provided between the high-pressure vessels on the bottom wall and extending along the axial direction; a connection member that connects one axial end of each of the high-pressure vessels; and a support member that supports the other axial end of each of the high-pressure vessels, and the support member can move relatively inward in the vehicle width direction with respect to the high-pressure vessel when a load is input from outside in the vehicle width direction.

A body structure for an automotive vehicle includes an enclosure for a power source, an upper shear structure assembly and a lower shear structure assembly. The enclosure includes a front cross-member, a rear cross-member, a left rocker and a right rocker. The upper and lower shear structure assemblies are disposed across the top and bottom of the enclosure, respectively, and are fastened to respective top and bottom surfaces of the cross-members and rockers. The upper and lower shear structure assemblies may include respective front and rear generally trapezoidal sections configured for attachment to respective front and rear box structures. Each of the shear structure assemblies is effective to dissipate in-plane a portion of an external load imposed upon the enclosure.

A vehicle lower structure includes: a battery pack having first and second battery units and a battery cover; and a fuel tank that is arranged on a vehicle rear side to be higher than the first and second battery units. At positions under a floor panel, the first and second battery units are arranged on both sides in a vehicle width direction of a propeller shaft. The battery cover has a coupling section that couples first and second battery accommodation sections. The coupling section couples the first and second battery accommodation sections such that a vehicle rear side thereof is higher than the first and second battery accommodation sections, extends in the vehicle width direction at a position above the propeller shaft, and is arranged next to a vehicle front side of the fuel tank.

A vehicle lower structure includes: first and second battery units that are arranged under a floor panel and on both sides in a vehicle width direction of a propeller shaft; right and left floor frames disposed on a lower surface side of the floor panel. The floor frame has a front inclined section and a width increased section. The first and second battery units are arranged between the width increased sections 52 of the right and left floor frames. A battery-related electrical component, a width of each of which in the vehicle width direction is less than a width of each of the first and second battery units, is arranged between the front inclined sections.