| 摘要 |
PCT No. PCT/DE93/00446 Sec. 371 Date Dec. 12, 1994 Sec. 102(e) Date Dec. 12, 1994 PCT Filed May 21, 1993 PCT Pub. No. WO93/25813 PCT Pub. Date Dec. 23, 1993.A fuel injection nozzle for internal combustion engines with direct injection including a nozzle body and an outward-opening valve needle with a closing head, in which outward-oriented injection ports are disposed. In order to form exact oriented fuel streams from the injection onset on, the cross section of the stream is controlled by the valve needle as a function of its stroke. The injection ports have a sharp control edge with a sharp control edge on the nozzle body which determines the injection cross section, and a sealing seat line formed by a hollow frustoconical valve seat on the nozzle body and a frustoconical valve cone on the nozzle needle, with a radially inner annular edge. The annular edge is disposed on an annular body secured to the valve needle and is aligned with the control edge of the injection ports in the injection direction of the injection ports. The annular body is secured to the end of the nozzle needle toward the combustion chamber either nonpositively or positively.
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