Abstract:
A device for delivering a liquid additive includes an additive delivery unit and an electronic unit. The additive delivery unit has at least one hydraulic component for delivering the liquid additive. All electrical connections of the at least one hydraulic component are brought together in a first plug connector on the additive delivery unit. The electronic unit has a second plug connector which can be connected to the first plug connector. The first plug connector and the second plug connector are connected to one another and form a plug connection when the electronic unit and the additive delivery unit are connected to one another. A motor vehicle having the device is also provided.
Abstract:
A delivery unit for delivering a liquid additive from a tank into an exhaust gas treatment device includes at least a housing which can be mounted on the tank, and a component carrier which carries at least one pump and is fixed in the housing by a clamping plate. A motor vehicle having a delivery unit is also provided.
Abstract:
A delivery unit for extracting liquid additive from a tank can be mounted on the tank and includes a fill level sensor for measuring the fill level of liquid additive in the tank. The fill level sensor is set up to emit waves into an emission region of the tank, and the fill level can be measured by using a propagation time measurement of the waves reflected by a liquid surface and striking the fill level sensor again. At least one first reference surface extends at least partially into the emission region and is at a first distance from the fill level sensor. The at least one first reference surface is disposed on a separate calibration component mounted on an outer side of a housing of the delivery unit. A tank for storing liquid additive, a motor vehicle and a method for monitoring a fill level are also provided.
Abstract:
A delivery unit for delivering a liquid additive in a motor vehicle, includes at least one temperature sensor for contactlessly measuring a temperature at least at one measurement point in the delivery unit. The temperature sensor and the measurement point have a spacing therebetween and a radiation channel which is free from fixtures is provided between the temperature sensor and the measurement point. A method for checking the operating state of a delivery unit and a motor vehicle having a delivery unit are also provided.