Liquid reducing agent e.g. aqueous urea solution, dosing device for e.g. diesel-operated internal combustion engine, of motor vehicle, has dosing line connected with operating container, which is connected with storage container

摘要

The device (110) has an operating container (112) for supplying work quantity of a liquid reducing agent (122) e.g. aqueous urea solution. A feed pump (116) is provided to suck the liquid reducing agent over a storage suction line (118) from a storage container (114) and over a work sucking line (120) from the operating container and to supply to a dosing module over a dosing line (126), where the dosing line is connected with the operating container by a return line (128). The operating container is connected with the storage container by an overflow line (140).