| 摘要 |
Given the disadvantages inherent in known prior art, the object is to create a procedure and suitable injection nozzle to achieve a rotationally symmetric distribution of fuel during entry into the combustion chamber. In addition, the object is to achieve a high atomization quality, in particular at the start of the injection process already, an optimal injection progression while the nozzle opens, and a variation in injection quantity.To achieve this object, it is proposed that the fuel be introduced into the swirl chamber where its radius is largest. While the nozzle outlet opening is closed, a radial velocity component directed toward the axis of the swirl chamber is imparted to the fuel flow to go along with the peripheral velocity component. The fuel flow is removed from the swirl chamber where its radius is smallest, concentrically to the valve needle, wherein the removal of fuel from the swirl chamber is slowed or completely interrupted during the injection phase.
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