Method for operating an internal combustion engine

US7415963B2 · kind B2 · utility

Assignee

• AVL LIST GMBH · AT

Inventors

• Franz Chmela · Graz, AT
• Janos Csato · Graz, AT
• Helmut Eichlseder · Graz, AT
• Guenter Figer · Stuttgart, DE
• Christian Fuchs · Heilsbronn, DE
• Michael Glensvig · Graz, AT
• Peter Herzog · Graz, AT
• Thomas Kammerdiener · Graz, AT
• Klemens Neunteufl · Graz, AT
• Gerhard Pirker · Lenzburg, CH
• Theodor Sams · Graz, AT
• Michael Weissbaeck · Graz, AT
• Andreas Wimmer · Graz, AT

Key dates

• Filing date: Apr 16, 2004
• Grant date: Aug 26, 2008
• Expiry date: Apr 16, 2024

Classification

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

Abstract

The invention relates to a direct-injection internal combustion engine that is operated in a first operating range associated with the low part load, with largely homogeneous combustion of the mixture and subsequent injection. Said internal combustion engine is operated in a second operating range associated with the middle part load, with low-temperature combustion of the mixture. In this way, minimum nitrogen oxide and soot emissions and a high degree of efficiency can be achieved both in the lower part load region and up to the full load region.