Method of operating a diesel internal combustion engine

US6651614B2 · kind B2 · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Tobias Fl{haeck over (a)}mig-Vetter · Eßlingen, DE
• Ulrich Heinl · Esslingen am Neckar, DE
• Gernot Hertweck · Fellbach, DE
• Katsuyoshi Koyanagi · Eßlingen, DE
• Thomas Mühleisen · Uhingen, DE
• Heinz Oing · Dörpen, DE
• Guido Vent · Speyer, DE
• Jurgen Willand · Stuttgart, DE

Key dates

• Filing date: Sep 28, 2001
• Grant date: Nov 25, 2003
• Expiry date: Dec 3, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In a method of operating a diesel internal combustion engine, wherein a homogeneous mixture is formed in the combustion space before a spontaneous ignition by means of fuel injected directly into separately supplied combustion air, which combustion air is admitted to the combustion space in a swirling flow about the longitudinal axis of the cylinder that can be adjusted as regards its swirl intensity by a control element. A control unit adjusts the swirl intensity in a manner coordinated with the injection parameters to provide a homogeneous mixture igniting at a predetermined point for highly effective engine operation with low emissions.