Fuel injection valve for internal combustion engines with magnetic coil co-acting with valve needle with resetting spring acting in stop direction

摘要

The fuel injection valve contains excitable actuator, e.g. magnetic coil, co-acting with stopper needle (4), forming sealing seat (6) with valve seat body (5). In valve seat body is formed at least one injection spray port (7).On front side (39) of valve seat body, facing combustion chamber, is formed protrusion (38), into which open injection spray ports. Preferably surface normal of port cross-sections of lies on longitudinal axis (40) of fuel injection valve.