Fuel injector

US7013864B2 · kind B2 · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Benedikt Ganz · Durmersheim, DE
• Jean-Francois Gaudry · Stuttgart, DE
• Hans Hartmann · Stuttgart, DE
• Rolf Klenk · Stuttgart, DE
• Andreas Mlejnek · Stuttgart, DE
• Klaus Robler · Stuttgart, DE
• Helmut Scheffel · Holzgerlingen, DE
• Dirk Strubel · Stuttgart, DE
• Matthias Zahn · Riedstadt, DE

Key dates

• Filing date: Feb 8, 2005
• Grant date: Mar 21, 2006
• Expiry date: Feb 8, 2025

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M51/0603
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

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.