Piston fuel pump for an internal combustion engine

US10400727B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Jochen Kaesser · Winnenden, DE
• Bernd Beiermeister · Steinheim an der Murr, DE
• Soeren Stritzel · Rayong, TH
• Wolfgang Ochs · Bornsteiner Straße, DE
• Ralf Assmann · Waldbronn, DE
• Heiko Jahn · Tamm, DE
• Christian Preissner · Nuremberg, DE
• Achim Laub · Waiblingen, DE
• Peter Ropertz · Oberriexingen, DE
• Stefan Zaensch · Stein, DE

Key dates

• Filing date: Dec 4, 2015
• Grant date: Sep 3, 2019
• Expiry date: Dec 4, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2200/8061
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A piston fuel pump for an internal combustion engine includes a pump cylinder and a pump piston that is configured to be axially displaced in the pump cylinder. A working chamber is defined by the pump piston. A seal is provided on the pump cylinder, which seals the working chamber counter to a low pressure region. The seal is applied directly to the pump piston by an injection molding method.