Fuel injector, particularly common rail injector for compression-ignition internal combustion engines, has closing element coupled with magnet armature through intermediate element, which has spherical bearing surface for closing element

摘要

The fuel injector (10) has an injection valve element (18), which is arranged in an injector housing (12) for releasing or closing an injection opening, where the movement of the injection valve element though the outward flow of fuel from a control chamber (20) is influenced by a spherical closing element (30). The closing element is coupled with a magnet armature (32) through an intermediate element (55), which has a spherical bearing surface (56) for the closing element.