High-pressure fuel pump for an internal combustion engine

US7387109B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Helmut Rembold · Stuttgart, DE
• Ruediger Schnell · Eberbach, DE
• Bernd Schroeder · Eßlingen, DE

Key dates

• Filing date: Oct 21, 2004
• Grant date: Jun 17, 2008
• Expiry date: May 19, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/7848
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A high-pressure fuel pump for an internal combustion engine is proposed, in which the regulating behavior in idling and lower partial-load operation is improved to such an extent that a separate pressure regulating valve in the high-pressure region of the fuel injection system can be dispensed with.