System for injecting fuel into combustion chambers of an internal combustion engine

US4926819A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Gerhard Auwarter · Stuttgart, DE
• Ernst Imhof · Münchingen, DE
• Iwan Komaroff · Regensburg, DE
• Helmut Reum · Stuttgart, DE
• Gunther Schmid · Lons-le-Saunier, FR
• Bernhard Kaczynski · Waiblingen, DE

Key dates

• Filing date: Sep 14, 1988
• Grant date: May 22, 1990
• Expiry date: Sep 14, 2008

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M57/00
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A system for injecting fuel into the combustion chambers of an internal combustion engine, comprising an injection nozzle and a glow coil which is connected downstream and is enclosed by a sleeve. The sleeve contacts one end of the glow coil on the combustion chamber side and is connected with a current lead. The other end of the glow coil is grounded via a contact ring body, a heat protecting ring and the nozzle body of the injection mozzle. This arrangement has the advantage that an insulation of the contact ring body relative to the heat protection ring is dispensed with and the latter can be supported immediately at the contact ring body.