Fuel injector for injecting fuel into combustion chamber of internal-combustion engine, particularly common rail injector, comprises single or multipart injection valve element for opening and closing injection opening

摘要

The fuel injector (1) comprises single or multipart injection valve element (11) for opening and closing an injection opening (14). The injection valve element comprises a control valve (25), which is assigned a control valve element (29) adjustable against the force of a spring. A connection channel (28) is provided, which is sealed by a disk spring (32).