| 摘要 |
The fuel injection system has a pump work chamber (18), which is defined by a pump piston (14) and can be filled with fuel via a communication controlled by a control valve device (30; 130) and can be made to communicate with a relief chamber (31); during a given fuel injection, the pump work chamber (18) is disconnected from the relief chamber (31) by the control valve device (30; 130), and to terminate the fuel injection it is made to communicate with the relief chamber (31) by the control valve device (30; 130). A fuel injection valve (20) of the fuel injection system has an injection valve member (22), which controls at least one injection opening and is urged in the opening direction (28) by the pressure prevailing in the pump work chamber (18), counter to a closing force. To interrupt the fuel injection, a communication of the pump work chamber (18) with a pressure chamber (32) is also controlled by the control valve device (30; 130), and the injection valve member (22) is urged in the closing direction at least indirectly by the pressure prevailing in the pressure chamber (32).
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