Siemens Aktiengesellschaft

Continental Automotive Gmbh

Klaus Rübling

Günter Lewentz

Dieter Marksteiner

The invention relates to a leakage connection for an injector, which inject fuel into a combustion chamber of an internal combustion engine. The leakage connection is configured as one piece with an injector component. In addition, a leakage nipple is integrated into the leakage connection, for attaching a leakage return line.

Leakage connection for a fuel injector

A fuel-injection nozzle for an internal combustion engine is disclosed. The nozzle comprises a nozzle body (), in which a nozzle needle () with a stop () is positioned so that it can be displaced, and a nozzle holder (), in which a pressure pin () is displaceably mounted. A disc-shaped stop element () is provided in a zone between the nozzle body () and the nozzle holder (). The nozzle body () and the nozzle holder () are axially braced against one another in such a way that the stop element () forms a first sealing surface (), which lies adjacent to one section () of the nozzle holder and a second sealing surface (), which lies adjacent to one section () of the nozzle body. Both the first and second sealing surfaces () respectively have at least one cavity (), which is punched, drilled and/or stamped.

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Wuppertal, Germany

Klaus Rübling