Patent ID: 6896198

Claim:
An injector for common rail injection systems of Diesel engines, comprising a nozzle needle, a control piston ( 14 ) for actuating the nozzle needle, a valve that actuates the control piston ( 14 ) and is triggered by a magnet valve or niezoelectric actuator element via an outlet throttle ( 11 ) and an inlet throttle ( 18 ), and a hydraulic stop ( 16 ) for the control piston ( 14 ), such that the flow from the inlet throttle ( 18 ) to the outlet throttle ( 11 ) can additionally be throttled at the narrowest cross section ( 17 ), the control piston ( 14 ) being embodied conically on its offset top side ( 16 ) oriented toward the outlet throttle ( 11 ) or the inlet throttle, wherein the counterpart outlet throttle ( 11 ) or inlet throttle ( 18 ) that cooperates with the control piston ( 14 ) is also embodied conically and coaxially with the control piston ( 14 ), but with a different cone angle (α).