Patent ID: 7422165

Claim:
A fuel injector comprising: an injection jet; an injection valve including a mobile plunger for regulating the flow of fuel through the injection jet; an electromagnetic actuator adapted to displace the plunger between a closed position and an open position of the injection valve, the electromagnetic actuator including a first electromagnet and a second electromagnet that are magnetically independent from one another, wherein each electromagnet comprises: a coil, wherein the coil of the first electromagnet is separate from the coil of the second electromagnet; a fixed magnetic armature, wherein the fixed magnetic armature of the first electromagnet is separate from the fixed magnetic armature of the second electromagnet; and a mobile armature mechanically fixed to the plunger, wherein the mobile armature of the first electromagnet is separate from the mobile armature of the second electromagnet; a spring adapted to hold the plunger in the closed position; and a supporting body having a tubular shape including a central channel, which accommodates the fixed magnetic armatures and the mobile armatures; the supporting body further including a pair of annular slots, which are spaced apart from one another and are located on the outer surface of said supporting body; wherein the coil of each electromagnet is wound directly within the respective annular slot; wherein the first and second electromagnets are adapted to move their respective mobile armatures in the same direction upon energization of the first and second electromagnets, whereby the mobile armatures of the first and second electromagnets both move the plunger to open the injection valve.