Injection nozzle

US6769634B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Achim Brenk · Remchingen, DE
• Wolfgang Klenk · Besigheim, DE
• Uwe Gordon · Markgröningen, DE
• Manfred Mack · Riedlingen, DE

Key dates

• Filing date: Feb 19, 2002
• Grant date: Aug 3, 2004
• Expiry date: Oct 7, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2200/46
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In a fuel injection nozzle having a nozzle body which body has one first and one second group of injection ports, one first and one second nozzle needle, and one separate pressure chamber for each nozzle needle, so that the injection needles are adjustable independently of one another between a closed position, in which the injection ports associated with the corresponding nozzle needle are closed, and an injection position, in which the corresponding injection ports are opened, a free choice of injection cross sections is to be made possible, while the design is simple. To that end, it is provided that the two nozzle needles adjoin one another.