In a vehicle rear portion of a vehicle, a third hydrogen tank is disposed between a left and right pair of rear side members that structure portions of the vehicle body and extend in the vehicle front-and-rear direction. An auxiliary battery is disposed at a vehicle width direction outer side of the rear side members.

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 vehicle includes a plurality of fuel tanks in which fuel is stored, and a fuel consuming unit that is connected to the fuel tanks and that consumes the fuel supplied from the fuel tanks to obtain a driving force of the vehicle. The fuel tanks are arranged such that a longitudinal direction of the fuel tanks extends along a height direction of the vehicle.

A combination vehicle includes a tractor and a trailer towed by the tractor. The trailer includes a first tank that is configured to store a high-pressure gas as a fuel used by the tractor to travel. The tractor includes a second tank that is configured to store a high-pressure gas as a fuel used by the tractor to travel. The combination vehicle is configured to travel using the fuel supplied from the first tank and the second tank.

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 system for retaining a plurality of compressed gas cannisters for fueling a vehicle is provided, the system comprising: a base which includes: a plate including a distal end and a proximal end; a base engagement member at the distal end of the plate; and a first mating member proximate the proximal end; a cassette which includes: a top; a first side; a second side; a front; a back; a bottom to define an interior, the interior for housing the plurality of compressed gas cannisters; at least one fork pocket mounted on one of the top, the bottom or the back, the fork pocket extending from a distal end a distance; a plurality of gas cannister apertures extending between the interior and an ambient environment, wherein the bottom includes a bottom engagement member which extends outward beyond the first side at the distal end; a locking mechanism proximate the distal end; and a second mating member proximate a proximal end, wherein the first mating member and the second mating member are in pivotal engagement in use.

A dual fuel tank system for a machine having a frame and an engine enclosure mounted on a rear portion of the frame includes a pair of support plates located at the rear portion of the frame and welded onto a pair of sides of the frame. Further, the dual fuel system also includes a pair of upper and lower support brackets secured onto each side of the engine enclosure. Furthermore, the dual fuel system also includes a pair of fuel tanks disposed on the pair of sides of the engine enclosure. Each fuel tank is releasably secured onto the support plate and an associated pair of the upper and lower support brackets.

Power machine fuel tanks include a plug receptacle and a cover for the plug receptacle which seals the plug receptacle from an interior of the fuel tank. A receptacle insert positioned within the plug receptacle allows a fuel plug to be removably secured to the fuel tank. The cover prevents leakage from inside the fuel tank through the plug receptacle, regardless of whether the plug is secured within the receptacle insert, unless the cover has been removed from a sealing position.

A rear chassis module for a vehicle includes: a rear suspension subframe disposed under a rear floor panel; a pair of front reinforcing members extending from the rear suspension subframe toward the front of the vehicle, and supporting a battery pack; a pair of rear reinforcing members extending from the rear suspension subframe toward the rear of the vehicle, and supporting a fuel tank; a pair of rear floor side members disposed on both sides of the rear floor panel; and a rear crossmember transverse to and connected to the pair of rear floor side members.

A battery pack which is placed below a floor panel of a vehicle, includes a battery, a case for accommodating the battery, and a pressure release mechanism for releasing pressure inside the case. The pressure release mechanism includes a communication member which has one end and the other end and where the one end is connected to the case, and a gas discharge unit connected to the other end of the communication member and having a labyrinth structure.