| 摘要 |
<p>The present invention relates to a device (1) for providing a liquid additive into an exhaust line (2). The device (1) comprises a tank (3), a delivery line (4), a heating element (5), formed from a posistor, for heating the additive in the tank (3) and/or the delivery line (4), and a dosing device (6) for dosing the liquid additive. The dosing device has a coil (7) and has a movable component (8), wherein the movable component (8) can be moved by means of the coil (7). The coil (7) can be connected electronically in series with the heating element (5) by means of a first switching element (9). By means of the present invention, it is possible in an inexpensive manner for the activation current through a heating element (5) composed of a posistor material to be limited in magnitude.</p> |
