Fuel injector e.g. hub-controlled fuel injector, for use in common rail injection system, for injecting fuel into combustion chamber of self-igniting internal combustion engine, has high pressure supply bore provided in connecting piece

摘要

The injector (110) has an injection valve element (134) for closing or opening an injection opening (152) and an actuator (172) e.g. magnetic-actuator, controlling the element. The element is movably supported in an axial direction in an injector body (122). A high pressure chamber (132) is formed in the injector body. The injection valve element is partially included in the high pressure chamber. The high pressure chamber is defined by a connecting piece (126) that is included in the injector body. A high pressure supply bore (192) ending in the chamber is provided in the connecting piece.