Fuel injection device for internal combustion engines

US6283390A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Peter Brendle · Trochtelfingen, DE
• Rainer Schneider · Erlangen, DE
• Achim Eisemann · Fürstenau, DE
• Maximilian Kronberger · Regensburg, DE
• Herbert Strahberger · Linz, AT
• Ernst Feichtinger · Leonding, AT

Key dates

• Filing date: Oct 7, 1999
• Grant date: Sep 4, 2001
• Expiry date: Oct 7, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M59/44
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A fuel injection device for internal combustion engines, having a fuel injection pump, which can be inserted into a housing of the engine and is axially clamped together with a fuel injection valve by means of a clamping sleeve. The valve, with an end remote from the pump, protrudes into a combustion chamber of the engine. A fuel supply line to the fuel injection pump feeds into an annular chamber encompassing the clamping sleeve and, via through openings in the clamping sleeve and inlet conduits in the pump housing, the valve can be connected to a pump working chamber of fuel injection pump. According to the invention, the fuel filter in the inlet to the pump working chamber is constituted by the clamping sleeve, which has a multitude of filter openings for this purpose in its circumference wall, in the vicinity of the annular chamber.