| 摘要 |
The invention relates to an injection nozzle (1) for injecting fuel into the combustion chamber of an internal combustion engine, comprising an axially displaceable nozzle needle (6), to which, in order to control the opening and closing movement thereof, pressure in a control chamber (12) filled with fuel can be applied in the axial direction, wherein the control chamber (12) is connected to a feed line (24) having an inlet throttle (15) and to a discharge line (23) having an outlet throttle (20), and at least one control valve (16) opening or closing the inlet or discharge channel is provided, with which the pressure in the control chamber (12) is controlled. According to the invention the inlet and/or the discharge throttle (15, 20) comprises a section that extends over at least a part of the length of the throttle (15, 20) and reduces in cross-section in the flow-through direction, and the inflow edge (25) of the inlet and outlet throttle (15, 20) is rounded (26). |
