Patent ID: 7422165
Filing Date: 2008-09-09
Classification: F02M

Abstract:
1. 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 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.