Fuel supply system of an internal combustion engine

US6889656B1 · kind B1 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Helmut Rembold · Stuttgart, DE
• Kurt Frank · Schorndorf, DE

Key dates

• Filing date: Apr 26, 1999
• Grant date: May 10, 2005
• Expiry date: Apr 26, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2250/02
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In fuel supply systems with two fuel pumps connected in series and fuel valves that inject directly into the combustion chamber, there have been occasional problems. The proposal is made that in order to eliminate these problems, the first fuel pump operates with increased delivery capacity, particularly during the startup process and in the event of high fuel temperature. The fuel supply system is provided for an internal combustion engine of a vehicle.