Fuel injection pump for internal combustion engines

US4640255A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Walter Hafele · Fellbach, DE
• Manfred Kramer
• Dietmar Schmieder · Markgröningen, DE
• Johann Warga · Bietigheim-Bissingen, DE

Key dates

• Filing date: May 6, 1985
• Grant date: Feb 3, 1987
• Expiry date: May 6, 2005

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M55/00
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A fuel injection pump for internal combustion engines having a plurality of in-line pumping elements, in which there is one pumping element in the injection pump for each individual combustion chamber of the engine. Each pumping element is surrounded by one partial suction chamber, and quantity dividers inserted into inflow and outflow conduits divide the flow of fuel into partial fuel flows so that each partial suction chamber is flushed, whereby no outflowing fuel is capable of mixing with inflowing fuel.