High-pressure fuel pump

US12253055B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Thomas Froihofer · Brackenheim, DE
• Rainer Kornhaas · Stuttgart, DE
• Guido Bredenfeld · Erbach, DE
• Stephan Wehr · Heiligenstadt, DE

Key dates

• Filing date: Jun 8, 2022
• Grant date: Mar 18, 2025
• Expiry date: Jun 8, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M63/005
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A high-pressure fuel pump has an inlet valve and a pressure-limiting valve which fluidically connects a high-pressure region to an inlet valve region located, in terms of geometry, between the inlet valve and an electromagnetic actuator of the high-pressure fuel pump, which acts upon the inlet valve via a tappet.