Fuel injection system for internal combustion engines

US6513497B1 · kind B1 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Bernd Mahr · Plochingen, DE
• Martin Kropp · Ditzingen, DE
• Hans-Christoph Magel · Pfullingen, DE
• Wolfgang Otterbach · Stuttgart, DE

Key dates

• Filing date: May 21, 2001
• Grant date: Feb 4, 2003
• Expiry date: May 21, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2200/21
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A fuel injection system has one or more unit fuel injectors or pump-line-nozzle system, corresponding in number to the number of cylinders, for compressing the fuel and a hydraulic pressure booster unit. With the aid of the unit fuel injector and the pressure booster unit, a fuel injection can be performed with great precision over a wide rpm range.