REASPIRATION PUMP OF AN EXHAUST GAS POST-TREATMENT LIQUID AGENT, DOSING DEVICE AND REASPIRATION DOSING METHOD

摘要

Diaphragm pump for delivering liquid or reapplying a liquid from a line of a metering device having a piston (42) for transmitting the driving force of a rotary eccentric (44) to a pump diaphragm (54) , the raising and lowering movement of the diaphragm pump producing suction of the liquid by a liquid inlet (58) and its delivery by a liquid outlet (60). The eccentric (44) and the piston (42) are arranged so that in particular in the rest position of the diaphragm pump, the eccentric (44) and the piston (42) are arranged relative to each other so that they come into a position spaced from each other by adjusting an appropriate rotational position of the eccentric (44).