Injector, particularly common rail injector, for fuel injection in combustion chambers of internal-combustion engines, has actuator arranged in injector body, which is arranged to operate valve case of control valve

摘要

The injector has an actuator (23) arranged in an injector body (2), which is arranged to operate a valve case of a control valve (24) relative to a valve seat surface in an axial direction. A nozzle needle (8) is adjusted depending on the pressure in a control chamber (15) between an open releasing position and a closing position of the fuel flow. The valve seat surface is arranged with fuel passage channel on the the seat element (35), which slides relative to the valve case.