Patent ID: 6619269
Filing Date: 2003-09-16
Classification: F02B,F02M,Y02T

Abstract:
A fuel injector for a fuel injection system of an internal combustion engine, comprising:a solenoid coil; a resetting spring; an armature acted upon in a closing direction by the resetting spring, the solenoid coil being positioned relative to the armature to selectively move the armature; a cooperating with the resetting spring so that a spring force of the resetting spring and a spring force of the are added together, the resetting spring being biased by the armature over a total lift of the armature, and the being biased by the armature only for a residual lift of the armature, the residual lift being smaller than the total lift. a valve-closure member; a valve needle frictionally connected to the armature to actuate the valve-closure member; and a valve seat surface, the valve-closure member and the valve seat forming a sealing seat.