A closure device for a fluid container, in particular a hydraulic tank, having a base (4), which can be attached to the container opening thereof, and a cover part (2), which encloses a ventilation and/or a filter device (36), is held on the base (4) so as to be freely rotatable in a functional unlocking position and, in a further functional locking position, permits the container opening to be unlocked by means of a safety device (48, 50, 58) while connecting the cover part (2) to the base (4), is characterized in that the safety device (48, 50, 58) can be actuated by a device generating a magnetic field (62), which device establishes the further locked functional position of the cover (2) and the base (4) by means of magnetic force.

A fuel tank apparatus for a motor vehicle that includes a fuel tank and a filling module configured for connection to the fuel tank. The filling module includes a fuel accumulator and a filler neck configured for fluidic connection to the fuel accumulator in such a way that permits filling to occur place via the filler neck exclusively into the fuel accumulator.

A work vehicle includes a fuel tank, a control module, a fuel access detection device, a fuel level sensor, and a reaction assembly. The fuel access detection device detects the accessibility of the fuel, and transmits a first signal indicative of the accessibility of the fuel to the control module. The fuel level sensor detects a volume of the fuel, and transmits a second signal related to the volume of the fuel to the control module. The reaction assembly is coupled to the control module and performs a first reaction and a second reaction after the first reaction. In the first reaction the reaction assembly is commanded by the control module based on the first signal, and in the second reaction the reaction assembly is commanded by the control module based on the second signal when the volume of the fuel is changed.

A method is used to control a fuel level gauge of a vehicle system and includes: monitoring, via an engine controller, a fuel economy of the vehicle system; comparing, via the engine controller, the fuel economy with a predetermined fuel economy threshold to determine whether the fuel economy is less than the predetermined fuel economy threshold; adjusting, via the engine controller, a sensitivity of a display filter in response to determining that the fuel economy is less than the predetermined fuel economy threshold for a predetermined amount of time in order to maximize an accuracy of the fuel level gauge, wherein the display filter smoothes an unfiltered fuel level signal received from a fuel level sensor of the vehicle system, thereby generating a filtered fuel level signal; and controlling, via an instrument panel controller, the fuel level gauge of the vehicle system.

A work vehicle includes a fuel tank, a control module, a fuel access detection device, a fuel level sensor, and a reaction assembly. The fuel access detection device detects the accessibility of the fuel, and transmits a first signal indicative of the accessibility of the fuel to the control module. The fuel level sensor detects a volume of the fuel, and transmits a second signal related to the volume of the fuel to the control module. The reaction assembly is coupled to the control module and performs a first reaction and a second reaction after the first reaction. In the first reaction the reaction assembly is commanded by the control module based on the first signal, and in the second reaction the reaction assembly is commanded by the control module based on the second signal when the volume of the fuel is changed.

There is provided an anti-siphon device for securing in a fluid tank inlet. The anti-siphon device comprises a housing, an inlet to the housing adapted to receive a fluid dispensing nozzle, the inlet at a proximal end of the hosing, and an outlet at a distal end of the housing. The anti-siphon device further comprises an obstruction disposed within the housing, where an outer surface of the obstruction and an inner wall of the housing define a first flow passageway. The obstruction comprises, a chamber disposed within the obstruction and configured to receive fluid, an inlet aperture in a first portion of the obstruction, and an outlet aperture in a second portion of the obstruction, where the inlet aperture, chamber, and outlet aperture define a second flow passageway, the second flow passageway being configured such that, in use, fluid can flow from the inlet aperture to the outlet aperture via the second flow passageway, whilst flows from the inlet to the outlet via the first flow passageway.

One embodiment of a molded fuel tank includes a fuel tank molded as one piece of rotationally molded cross-linked polyethylene material. One embodiment may include molding a fuel tank wall as a single layer of material with a metal component fastening structure positioned within the single layer fuel tank wall as it is molded.

The present invention provides system (100) for securing fuel of motor vehicles using IoT devices. The system comprises control device (101) mounted on lid of fuel tank to control the opening and closing of the lid of the fuel tank, from remote places. The control device (101) comprises plurality of IoT sensors connected to a microcontroller unit (205), a GSM module (202) to transfer the data between the authorized user and control device (101). The control device (101) also comprises microcontroller unit (205) to execute the plurality of operations and motor (207) integrated with microcontroller unit (205) to lock or unlock the lid of the fuel tank on receiving the signal from authorized user. An application is installed onto the user's mobile device (104) to monitor and track the activities in fuel tank. A cloud based database server (103) is used for storing and analyzing the measured fuel data.

The present invention relates to electronic identification systems and more particularly but not limited to electronic identification systems to be used with vehicle-refueling systems, the identification system comprises a radio-frequency-identification (RFID) transponder (RFIDT) that may be easily associated with a vehicle at its vehicle fuel-tank-intake-pipe, the transponder having a ferrite-antenna.

A fuel tank apparatus for a motor vehicle that includes a fuel tank and a filling module configured for connection to the fuel tank. The filling module includes a fuel accumulator and a filler neck configured for fluidic connection to the fuel accumulator in such a way that permits filling to occur place via the filler neck exclusively into the fuel accumulator.