An opening/closing apparatus for a fuel tank of a vehicle includes: a fuel passage forming portion forming a fuel passage guiding a liquid fuel to the fuel tank; an insertion-side opening/closing valve mechanism opening and closing a filler port of the fuel passage; a liquid discharge path allowing an internal region of the fuel passage forming portion to communicate with the outside through a liquid discharge port formed in a portion of the fuel passage forming portion, the portion closer to the fuel tank than the insertion-side opening/closing valve mechanism; an opening/closing valve mechanism opening and closing the liquid discharge port by a valve body; and a valve body regulating mechanism regulating the valve body to close the liquid discharge port when the insertion-side opening/closing valve mechanism opens the filler port.

An aircraft fuel tank venting and inerting arrangement comprising a fuel tank, a venting fluid flow path between the fuel tank and a venting outlet, an inerting fluid flow path for delivering inerting fluid to the fuel tank, at least part of the venting fluid flow path being provided by a fluid flow conduit and at least part of the inerting fluid flow path being provided by the fluid flow conduit. An aircraft comprising such an arrangement and a method of venting and inerting an aircraft fuel tank.

Leveled fuel levels in a fuel tank disposed at an undercarriage of a construction machine may ensure that the total fuel volume of the fuel tank may be accessible. The fuel tank may include a first fuel compartment and a second fuel compartment fluidly connected to the first fuel compartment and disposed at higher altitudes than the first fuel compartment. Furthermore, the fuel tank may include at least one step integrally formed with the first fuel compartment or second fuel compartment for facilitating entrance to an operator station of the construction machine.

An auxiliary fuel tank for a flexible fuel vehicle is provided. The auxiliary fuel tank is mounted to an auxiliary tank body for storing gasoline fuel and is installed in an engine compartment of a flexible fuel vehicle. The auxiliary fuel tank includes a canister that is coupled to the auxiliary tank body and has activated carbon therein. The canister is configured to collect fuel evaporation gas generated in the auxiliary tank body to supply fuel components to an engine.

A fuel cap is constituted to close an upper portion of a tubular member constituting a filler opening of a fuel tank, and wherein the breather mechanism is constituted to discharge vaporized fuel separated by gas-liquid separation in a labyrinth path within the fuel cap through a breather drain hose supported at a side of the fuel tank, the fuel tank further comprising: a plate member fixed to a support member to support the fuel cap to the fuel tank; and a seal member to airtightly communicate an exit of the labyrinth path and an end portion of the breather drain hose when the fuel cap is closed. The breather drain hose connected to a lower side of the seal member is supported by the plate member.

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 fuel inlet 10 includes a fuel inlet body 11 that is formed of resin including a reception pipe portion 20, a filler pipe connection pipe portion 30, a breather pipe connection pipe portion 40, and a fluid introduction portion 60. The reception pipe portion 60 receives a fuel nozzle 3. The filler pipe connection pipe portion 30 is located on a lower side of the reception pipe portion 20 and is connected to a filler pipe 31. The breather pipe connection pipe portion 40 is located on an upper side of the reception pipe portion 20 and is connected to a breather pipe 41. The fluid introduction portion 20 causes foamed fluid to flow along an inner wall surface of the reception pipe portion 20 while liquefying the foamed fluid, the foamed fluid flowing from the breather pipe connection pipe portion 40 to the reception pipe portion 20. The fuel inlet body 11 that is formed of resin is formed by integrally molding the reception pipe portion 20, the filler pipe connection pipe portion 30, the breather pipe connection pipe portion 40, and the fluid introduction portion 60.

A tank system (1) for a motor vehicle having an internal combustion engine to which fuel is supplied from a tank (2), wherein the tank (2) is assigned, in a ventilation path to the atmosphere (7), a flushable filter device (6, 6) for being loaded with hydrocarbon vapors of the fuel. The filter device (6, 6) has multiple mutually separate activated carbon filters (6). All of the activated carbon filters (6) are connected permanently in parallel. In this way, the ventilation resistance from the tank in the direction of the atmosphere can be kept low.

A safety arrangement for a DME fuel tank of a vehicle, adapted to release an excessive pressure from the fuel tank, including a spring-loaded pressure release valve adapted to open at a predefined pressure level, where the safety arrangement further includes a housing mounted on the fuel tank and having an outer opening closed by a lid, where the pressure release valve is arranged in the housing and where the housing is provided with an outlet pipe having an outlet opening, and where the lid is adapted to melt at a predefined temperature, thereby allowing gas to exit the pressure release valve through the outer opening of the housing when the pressure release valve is open and the lid has melted. A small gas leakage caused by an excessive pressure can be discharged downwards through the outlet pipe and outlet opening towards the ground, and a large gas leakage, caused by e.g. a fire, can be discharged outwards from the fuel tank, away from the fire.

An auxiliary fuel tank for a flexible fuel vehicle is provided. The auxiliary fuel tank is mounted to an auxiliary tank body for storing gasoline fuel and is installed in an engine compartment of a flexible fuel vehicle. The auxiliary fuel tank includes a canister that is coupled to the auxiliary tank body and has activated carbon therein. The canister is configured to collect fuel evaporation gas generated in the auxiliary tank body to supply fuel components to an engine.