An auxiliary system with purge control automatically supplies diesel exhaust fluid (DEF) to an onboard DEF tank of a diesel engine to enable prolonged unattended operation. The system includes an auxiliary DEF tank, an auxiliary DEF supply line, a controller, a pump, an air inlet, and a three-way valve configured to switch the pump inlet between the auxiliary DEF tank and air. In response to low-level DEF, the pump delivers DEF through the supply line to replenish the onboard DEF tank. The controller may automatically calculate onboard DEF tank volume based on the delivered volume of DEF, and DEF level data received from an ECM, to enable replenishment control regardless of engine make and model. In response to high-level DEF, engine stoppage, or other system fault, the controller switches the valve to air and runs the pump for a predetermined time to purge DEF from the supply line. The auxiliary system may be skid-mounted, portable, and configured to supply DEF to multiple diesel engines.

An auxiliary system automatically supplies diesel exhaust fluid (DEF) to a diesel engine onboard DEF tank to enable prolonged unattended operation. The system includes an auxiliary DEF tank and supply line, a controller, pump, air inlet, and three-way valve configured to switch the pump inlet between the auxiliary DEF tank and air. In response to low-level DEF, the pump delivers DEF to replenish the onboard DEF tank. The controller calculates onboard DEF tank volume based on the delivered volume of DEF, and DEF level data received from an ECM, to enable replenishment control regardless of engine make and model. In response to high-level DEF, engine stoppage, or system fault, the controller switches the pump inlet to air and runs the pump to purge DEF from the supply line. The auxiliary system may be skid-mounted, portable, and configured to supply DEF to multiple diesel engines.

The present invention pertains an onboard device for checking the quality of DEF in a work machine, comprising a flow channel configured to fluidly connect a DEF inlet with a DEF tank. The flow channel comprises a DQS configured to be brought into contact with DEF passing through the flow channel. The present invention also pertains to a method of checking the quality of DEF comprising the steps of tilling DEF into a flow channel configured to fluidly connect a DEF inlet with a DEF tank; and checking, by means of a DQS, the quality of the DEF in the flow channel,

A fluid filling system for filling a tank from a source of fluid. The system is particularly beneficial for filling a DEF tank. The system has a pump connected to a fluid source, such as DEF. A fill hose has a proximal end and a distal end. The proximal end is connected to the pump. The distal end includes at least one first sensor mounted adjacent the distal end. The distal end is adapted for insertion into the tank. A CPU is operatively connected to the first sensor and the pump. The first sensor communicates with the CPU to energize the pump when the sensor fails to sense fluid when the fill hose is inserted into the tank. The CPU deenergizes the pump when the first sensor senses fluid when inserted into the tank. As a result, the fluid filling system continually fills the container through the fill hose.

The invention relates to a filler neck (1) for an auxiliary liquid reservoir for a motor vehicle, in particular for a urea reservoir, having a neck housing (9), which defines a mouth hole stub (10) for a filler nozzle (7) and a filling channel (11) leading into the reservoir, wherein a receiving structure for a filler nozzle (7) is provided within the neck housing (9). At least one venting path, which is of enlarged cross section, at least in a section or sections, and of chamber-like or labyrinth-like design, is formed within the neck housing (9), allowing a venting flow parallel and counter to the refilling volume to flow through the neck housing (9) during refilling.

Such a mobile recycler that an operator can replenish a reducing agent tank with a reducing agent from the ground is provided. A reducing agent tank stores a reducing agent supplied to an exhaust gas treatment device treating an exhaust gas from an engine through reduction reaction. A tank case accommodates the reducing agent tank. The tank case has a support base supporting a container of the reducing agent for replenishment to the reducing agent tank.

A fuel cap barrier kit is basically provided with a movable barrier and an attachment member. The movable barrier is dimensioned and structured to be attached to a vehicle body at a location in which the movable barrier is disposed in front of a fuel cap and is underneath a filler compartment door. The movable barrier is movable between an inlet accessible position in which the movable barrier permits user access to the fuel cap and an inlet blocking position in which the movable barrier is disposed in front of the fuel cap. The attachment member is configured to fixedly attach the movable barrier to the vehicle body.

A fuel-urea injection apparatus including a common inlet for a vehicle may include a filler neck including the common inlet, into which a fuel injection nozzle and a urea injection nozzle, are inserted, a detector detecting whether the injection nozzle inserted into the filler neck is the fuel injection nozzle or the urea injection nozzle, a switchover valve mounted at a common injection pipe connected to the filler neck, a urea injection pipe connected between a urea outlet of the switchover valve and a urea tank, a fuel injection pipe connected between a fuel outlet of the switchover valve and a fuel tank, and a controller controlling an operation of the switchover valve in accordance with the injection nozzle detected by the detector as being inserted into the filler neck to supply either fuel or urea to the corresponding outlet of the fuel and urea outlets.

A filling head for filling a tank with a liquid, the filling head delimiting a conduit for filling the tank which extends axially along a filling axis from an upstream section which is adapted to receive a filling nozzle, up to a downstream section which is designed to be connected on the tank to fill, and a degassing circuit including an inlet which is adapted to be connected on the tank and an outlet in communication with the outside, the filling head being characterized in that it delimits a suction window which connects the downstream section of the filling conduit on the degassing circuit, so as to promote the suction of the gases via the degassing circuit, during the filling of the tank.

The invention relates to a pump (2) intended to pump an additive in an SCR system for a vehicle. The pump is configured to rotate in a first direction of rotation in order to convey additive stored in a tank towards an injector via an injection channel. The pump includes a chamber (23) which houses a gear system (22). The chamber (23) is in fluid communication with the tank and the injection channel via an inlet channel (24) and an outlet channel (25) respectively. The pump is such that the inlet channel and the outlet channel are arranged so that after draining the injection channel, the chamber collects and retains the additive.