摘要:
In order to continuously measure the dynamic fuel consumption of an internal combustion engine having a venting tank (10) which is arranged in a feedback line (11) from the outflow side (12) of the fuel system (7) and which is also connected to the inflow line (13) to the fuel system, a filling-level regulating device (15) is provided at a port of the venting tank (10), which filling-level regulating device (15) has a circulation pump (22) and an actuating valve (9) which is connected thereto, has a continuous flow through it, and is open to a greater or lesser degree as a function of the filling level to be regulated. As a result, apparent consumption occurring in specific operating states of the internal combustion engine can be avoided or taken into account as corrections.