Patent ID: 6688579
Filing Date: 2004-02-10
Classification: F02M

Abstract:
A solenoid valve for controlling a fuel injector of an internal combustion engine, comprising:an electromagnet; a movable armature including an armature plate and an armature pin, the armature plate being mounted on the armature pin; a control valve element configured to move with the movable armature and cooperate with a valve seat, and configured to open and close a fuel drain channel of a control pressure chamber of the fuel injector; and a hydraulic damping device including a stationary part and a part movable with the armature plate; wherein the armature plate is movable by sliding under an effect of an inertial mass of the armature plate in a closing direction of the control valve element against a tension of a return spring acting on the armature plate; wherein the hydraulic damping device is configured to dampen a post-oscillation of the armature plate during a dynamic displacement of the armature plate on the armature pin; and wherein the part movable with the armature plate is formed by an actuator, the actuator being arranged on a section of the armature plate facing away from the electromagnet and, to set a maximum slide path of the armature plate, being adjustable in a sliding direction of the armature plate relative to a first face of the armature plate facing the electromagnet.