Fuel injection valve for internal combustion engines

A fuel injection valve for internal combustion engines, in particular as a component of a storage-type fuel injection system, having an axially displaceably guided injection valve member (24), by which at least one injection opening (26) is controlled and which has a pressure shoulder (36) defining a pressure chamber (34), wherein fuel under pressure is delivered to the pressure chamber (36) from a high-pressure fuel source (10;

• 14), by which fuel the injection valve member (24) can be lifted from a valve seat (30) counter to a closing force to open the at least one injection opening (26), and having a control valve (18) influencing the motion of the injection valve member (24), which control valve has a control valve member (62;
• 162) movable counter to a restoring force by an adjusting force generated by a piezoelectric actuator (80), which control valve member controls the pressure prevailing in a control pressure chamber (48) communicating with a pressure source (10;
• 14), which pressure at least indirectly urges the injection valve member (24) in its closing direction, wherein by means of the control valve member (62;
• 162), the control pressure chamber (48) can be made to communicate with a relief chamber (12), and the control valve member (62;
• 162), with at least one sealing face (66, 69), cooperates with at least one valve seat (60, 74) by way of which the communication of the control pressure chamber (48) with the relief chamber (12) is controlled, characterized in that the control valve (18) has two valve seats (60, 74), spaced apart from one another in the direction of motion of the control valve member (62;
• 162);
• that the control valve member (62;
• 162) is movable between two closing positions, in each of which it rests with a respective sealing face (66, 69) on one of the valve seats (60, 74), and the control pressure chamber (48) is disconnected from the relief chamber (12), and that when the control valve member (62;
• 162) is disposed between its two closing positions, the control pressure chamber (48) communicates with the relief chamber (12).