The importance of fuel injection system in the operation
of diesel engines has been recognised since its
early days. The rate at which the fuel is introduced into
the combustion chamber determines the performance of
the engine. Hence, knowing the characteristics of the
fuel injection rate is extremely important in designing
the engine. So far, many fuel injection rate measuring
methods have been developed among which Zeuch’s [1]
and Bosch’s [2] are most frequently used today.
The paper shows a new fuel injection rate measuring
method, which measures the fuel electric charge. Its
major advantages are simplicity and low pric