Liquid reducing agent i.e. urea water solution, supply tank for injection equipment in exhaust gas after-treatment device of internal combustion engine in motor car, has valve closed in direction from one region toward another region

摘要

The supply tank (19) has a spring-loaded check valve arranged between two regions. The check valve permeable in a direction from one of the regions toward the other region is closed in a direction from the latter region toward the former region. The regions are separated from each other by a partition wall that is perforated in an upper part in an installation position of the supply tank. A suction hose (22) is guided through a lid of the supply tank, where a bottom part of the supply tank is flat.