| 摘要 |
<p>The device is characterised in that it comprises a control valve (25), returned by a valve spring (28), used as actuator operating on the injecting needle (6) when the injecting nozzle (1) is closed, and closing the internal volume of the injecting nozzle holder (3) which communicates with the bottom of the injecting nozzle (1). This valve ensures, with the decompression orifice (27), the retarding of the opening of the injecting nozzle (1) at the beginning of the injection controlled by the operation of the electrovalve (4). The device is particularly designed for completing and improving the quasi-constant pressure injection devices for diesel engines.</p> |
