| 摘要 |
<p>The invention relates to a method for controlling the injection pressure of liquid fuel through a nozzle, which method is characterized in that the pressure of the fuel is relieved at a suitable moment during the injection cycle through a secondary valve. The invention also relates to an arrangement for performing the method, which arrangement is characterized in that a moveable rod (7) within a conventional valve body (8), which is fastened to that part of an electromagnet (6) which moves up and down, carries a second spring abutting against the lower part of the valve body (8), which spring (17) is stiffer than the first spring (11) acting on the valve body, wherein the radial holes (13) are made in the valve body (8) towards the rod (7) and that the rod (7) cooperates with the valve body (8) to make a secondary valve.</p> |
