Patent ID: 7987835
Filing Date: 2011-08-02
Classification: F02M

Abstract:
1. A fuel injector, in particular a common rail injector, for injecting fuel into a combustion chamber of an internal combustion engine, comprising: an injection valve element which is adjustable between a closing position and an opening position; and a control valve switching the injection valve element between the closing position and the opening position, the control valve having a sleeve-like control valve element and a valve seat element, the sleeve-like control valve element being adjustable axially along an adjustment axis between a closing position and an open position, the sleeve-like control valve element in its closing position resting sealingly on the control valve seat element, the sleeve-like control valve element being adjustable axially along the adjustment axis in a direction of the injection valve element to lift the sleeve-like control valve element from its closing position in sealing engagement with the control valve seat element and in the process causing the injection valve element to lift from its closing position so that fuel is injected into the combustion chamber of the internal combustion engine, and wherein the control valve seat element is disposed movably relative to the adjustment axis of the control valve element to compensate for coaxial errors between the sleeve-like control valve element and the control valve seat element.