Valve control unit for a fuel injection valve

摘要: The invention relates to a valve control unit (1) for fuel injection valve, comprising two communicating chambers (5, 8). end member (13) of piston (3) that may be impinged upon with pressure is located inside the first chamber (5) connected supply channel (6). Said can displaced in such way flow cross section exchange shifted from second (8) drain (9). A throttle (17) between 8) embodied (3). Due configuration (17), mechanical stop made possible on edge areas passage makes it enlarge volume (5), said enlargement having no negative effect performance (13). Increased reaction speed after conclusion process obtained as final result these constructional measures.