Patent ID: 6619268
Filing Date: 2003-09-16
Classification: F02D,F02M,H01L

Abstract:
Fuel injection system with a piezoelectric element (10, 20, 30, 40, 50 or 60) for controlling the amount of injected fuel by charging and/or discharging the piezoelectric element (10, 20, 30, 40, 50 or 60), characterized in that the fuel injection system comprises a current flow controller (3000) for charging and/or discharging the piezoelectric element (10, 20, 30, 40, 50 or 60) as a function of a gradient of a voltage across the piezoelectric element (10, 20, 30, 40, 50 or 60) due to an existing charge the piezoelectric element (10, 20, 30, 40, 50 or 60) is carrying.