Injector (1) for injecting fluid with a valve assembly (3) comprising a valve body (5) and a valve needle (7), the valve needle (7) comprising an armature retainer (15), being coupled in a fixed way to the valve needle (7), the valve needle (7) being opera...

In an electromagnetic fuel injection valve, a valve body guide hole (15) which is connected to a valve seat (8) of a valve seat member (3) and slidably guides a valve body (14), and a large-diameter hole (17) which is connected to a rear end of the valve b...