High-pressure fuel pump with variable delivery quantity

US6655362B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Helmut Rembold · Stuttgart, DE
• Bruno Schmidt · Holiday, US
• Dietmar Krieg · Unterensingen, DE
• Mathias Schumacher · Asperg, DE
• Uwe Mueller · Cleebronn, DE

Key dates

• Filing date: Oct 24, 2001
• Grant date: Dec 2, 2003
• Expiry date: Jan 30, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04B2205/09
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A high-pressure fuel pump which is suitable above all for use in internal combustion engines with direct gasoline injection, in which the pressure surge upon opening of a check valve between the high-pressure line and the pumping chamber of the fuel feed pump is limited by structural provisions.