Cylinder-selective injection system

US5669357A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Helmut Denz · Stuttgart, DE
• Winfried Moser · Ludwigsburg, DE
• Wolfgang Hoptner · Uhingen, DE
• Helmut Gross · Hofheim, DE
• Christian Klinke · Pleidelsheim, DE
• Karl-Heinz Gerlings · Hannover, DE
• Klemens Grieser · Langenfeld, DE
• Klaus Bottcher · Oberriexingen, DE

Key dates

• Filing date: Apr 23, 1996
• Grant date: Sep 23, 1997
• Expiry date: Apr 23, 2016

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2250/21
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In a cylinder-selective injection system for an internal combustion engine, there are cylinder-selective injection suppressions. Subsequent to the suppressions, restoring added quantities specific to an individual cylinder are generated, whose initial value is dependent upon the number of suppressed injections for the cylinder in question, and whose notching-down to zero is dependent upon the number of injections of the cylinder that have taken place after completion of the suppression.