Fuel injection system

US3972314A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Roger Frederick DuPont · Schönaich, DE
• Konrad Eckert · Stuttgart, DE
• Heinrich Knapp · Leonberg, DE
• Wolf Wessel · Oberriexingen, DE

Key dates

• Filing date: Oct 3, 1974
• Grant date: Aug 3, 1976
• Expiry date: Oct 3, 1994

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F1/28
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A fuel injection system for externally ignited internal combustion engines preferably has one fuel injection location in the air induction tube (manifold). The metering of fuel occurs independently of the condition of the air prevailing at the injection location, the injection location is disposed ahead of the junction of the air induction tube which leads to the individual engine cylinders. Air is brought to a high velocity by means within the induction tube and impinges, at this high velocity, immediately on the injected fuel, enveloping the same. As a result, the mixture preparation is effected without wetting of the inner wall of the induction tube and the means which bring the air to the required high velocity.