Daimler Chrysler Ag

Klaus Röbler

Rolf Klenk

Helmut Scheffel

Dirk Strubel

Benedikt Ganz

Jean-Francois Gaudry

Hans Hartmann

Matthias Zahn

Andreas Mlejnek

Andreas Mleinek

In a direct-injection spark-ignition internal combustion engine having one injector per cylinder for injecting fuel into a combustion chamber, wherein the injector has an injection nozzle with a plurality of injection holes which are distributed over its circumference, so that the jets of fuel from the injection holes form during an injection process a conical cloud of fuel, the piston opposite the injection nozzle includes a piston recess provided with a plurality of radial cavities extending from the recess radially into the piston head for receiving fuel injected into the combustion chamber.

Direct-injection spark-ignition internal combustion engine

In a fuel injector for a direct-injection internal combustion engine comprising an injection nozzle, on the circumference of which a plurality of injection orifices are arranged so as to line up with one another, to form an orifice arrangement for the formation of an essentially conical fuel cloud from the individual fuel jets of the respective injection orifices the nozzle orifice locations are displaced so as to form a recess in the jet envelope in an area where a spark plug is located into which the spark plug extends so as to safely ignite the fuel cloud without getting wetted by the fuel.

Fuel injector

Growing community of inventors

Stuttgart, Germany

Klaus Röbler