Injector for the injection of fuel having a downstream-connected pressure element

摘要

Disclosed in an injector for injecting fuel into the combustion chambers of an internal combustion engine, in which control part body is received movably in an injector housing and its opening and closing motion is effected via pressure relief of a control chamber. The pressure relief of the control chamber is controlled via an externally actuatable actuator. On the control part body, a sealing seat diameter that seals off the valve chamber is provided, which closes and opens the inlet from a common rail. An annular throttle element of variable cross section is located downstream of the sealing seat diameter of the control part body. An annular throttle element of variable cross section, or a throttle slide with a throttle, is located downstream of the sealing seat diameter of the control part body.