| 摘要 |
<p>A fuel injection valve (1) for directly injecting fuel into the combustion chamber of an internal combustion engine comprises a piezoelectric or magnetostrictive actuator (6) and a hydraulic coupler (2). The coupler (2) has a master piston (3) and a slave piston (8), which are connected to a pressure space (14), and the pressure space (14) is filled with a hydraulic fluid. The pressure space (14) is sealed from an actuator space (21) by a first seal (12) and from a valve interior space (17) by a second seal (13).</p> |
