Patent ID: 7191762

Claim:
A fuel injection system for an internal combustion engine comprising: a nozzle ( 2 ) with an inlet; a cam-driven plunger ( 5 ) forming a plunger chamber ( 7 ) said plunger chamber connected to the inlet of the nozzle; a common rail ( 10 ) for fuel; a control valve ( 9 )between the plunger chamber ( 7 ) and the common rail ( 10 ), said control valve being able to open or close hydraulic communication between the plunger chamber and the common rail upon receiving an electrical control command; an electrically operated nozzle control valve ( 3 ) for opening and closing of the nozzle ( 2 ); a pressuring means ( 11 ) for pressurizing the common rail and regulating pressure of the fuel in the common rail ( 10 ); and a fuel tank ( 13 ).