An apparatus and a system are disclosed for preventing fuel starvation in an off-road vehicle that may be operated on a severely inclined surface. A vehicle having a fuel tank for a fuel delivery module disposed in the fuel tank. A fuel pump assembly is disposed in the fuel tank and a slip ring joint is assembled to the fuel delivery module. One or more tubes are assembled to the slip ring joint that extends and retracts relative to the slip ring joint toward and away from the walls of the fuel tank. A remote fuel pick-up is assembled to the tube so that when the vehicle is operated on an inclined surface, the remote fuel pick-up is extended and rotates inside the fuel tank to move toward and away from an inner surface of the fuel tank and follows the fuel contained in the fuel tank.

A fuel supply device includes a fuel tank having an opening, a lid member closing the opening, a ring member holding an outer periphery of the lid member between the fuel tank and the ring member, an electrical component disposed within the fuel tank, and a contoller configured to control the electrical component and mounted on the ring member.

A cover for a fuel tank includes a flange unit configured to close an opening of the fuel tank and a joint member connected to the flange unit . The joint member is movable in an upward/downward direction. The flange unit includes a side tubular portion extending in the upward/downward direction . The joint member includes a support column portion extending in the upward/downward direction . The support column portion is movably disposed in the side tubular portion so as to be movable in the upward/downward direction. The support column portion is connected to the side tubular portion by a snap-fit so as to be movable and suspendable in the upward/downward direction.

A fuel pick-up device (11) for a fuel tank (10) comprises a float (17) arranged for rising and falling with the level of fuel (F) in the tank (10) and a plurality of elongate flexible tubes (16a, 16b) extending helically from the float (17) to a fuel outlet (15) of the device (11), the float (17) being arranged for generally vertical movement within an apertured sleeve (13). The flexible tubes (16a, 16b) are sufficiently thin to allow the float (17) to freely rise and fall with the level of the fuel (F). However, the combined cross-sectional area of the ducts provided by the plurality of flexible tubes (16a, 16b) is sufficient to allow fuel to be drawn from the tank at a high flow rate sufficient for large engines.

Embodiments include systems and methods of reporting the fuel level in a fuel tank of a vehicle. The method includes receiving a fuel consumption curve and a fuel refill curve, receiving a first fuel level value and a second fuel level value from a fuel level sensor; and determining whether the vehicle is consuming fuel or receiving fuel based on a change between the first fuel level value and the second fuel level value. In response to determining that the vehicle is consuming fuel, the method further includes determining a fuel gauge display value based on the second fuel level value and the fuel consumption curve. In response to determining that the vehicle is receiving fuel, the method further includes determining a fuel gauge display value based on the second fuel level value and the fuel refill curve. The fuel gauge display value is presented on a fuel gauge display.

A passive fuel additives dosing system includes a membrane-based contactor within a cartridge, an additive within the membrane-based contactor, a fuel inlet to the cartridge and a fuel outlet from the cartridge. The membrane-based contactor is arranged within the cartridge such that, with fuel in the cartridge, a fuel contact area with the membrane-based contactor is dependent on a fuel flow rate to passively dispense a proportional amount of the additive into the fuel.

Embodiments include systems and methods of reporting the fuel level in a fuel tank of a vehicle. The method includes receiving a fuel consumption curve and a fuel refill curve, receiving a first fuel level value and a second fuel level value from a fuel level sensor, and determining whether the vehicle is consuming fuel or receiving fuel based on a change between the first fuel level value and the second fuel level value. In response to determining that the vehicle is consuming fuel, the method further includes determining a fuel gauge display value based on the second fuel level value and the fuel consumption curve. In response to determining that the vehicle is receiving fuel, the method further includes determining a fuel gauge display value based on the second fuel level value and the fuel refill curve. The fuel gauge display value is presented on a fuel gauge display.

The present invention is a fluids mechanical system for optimizing the catalytic effect of catalytic alloys for the elimination of microbiological contaminants in hydrocarbon fuels, that has catalytic alloy pieces mainly formed of tin and antimony, which are contained in a container that can be a metal tube, a stainless steel mesh or another type of plastic container, characterized in that the volume of the pieces or pellets of catalytic alloy is less than 60 cubic millimeters, preferably between 10 cubic millimeters and 45 cubic millimeters, the pieces having a spherical, disc or irregular shape.

A suction filter includes a filter element disposed in a fuel tank and filtering a stored fuel that is a fuel stored in the fuel tank by allowing the stored fuel passing the filter element into an inner space, a dividing wall element disposed to divide the inner space into a first space, into which a filtered fuel that is the fuel filtered by the filter element flows, and a second space, to which an intake port drawing in the filtered fuel is opened, and enclosing the first space together with the filter element and enclosing the second space together with the filter element, and a passage element including an inflow port opened to the second space and an outflow port to which an intake pressure is applied by the intake port and defining a flow passage through which filtered fuel flows from the inflow port toward the outflow port.

A power tool includes a tool head having a working element and a powerhead configured to provide power to the working element. The powerhead includes a fluid tank configured to hold a combustible fuel and defines an initial internal volume having an internal pressure. A diaphragm is formed of a flexible material and forms at least a portion of the fluid tank. The diaphragm moves from an unexpanded state to an expanded state when a temperature of the combustible fuel increases above a threshold value. Movement of the diaphragm to the expanded state increases the internal volume of the fluid tank to allow the internal pressure of the fluid tank to remain approximately constant.