Internal combustion engine

US6055955A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Walter Benedikt
• Werner Herden · Gerlingen, DE
• Matthias Kuesell · Kornwestheim, DE

Key dates

• Filing date: May 18, 1998
• Grant date: May 2, 2000
• Expiry date: May 18, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An internal combustion engine, for motor vehicles having a direct fuel injection and externally supplied ignition, which has at least one combustion chamber enclosed between a cylinder head and a reciprocating piston displaceable in a cylinder bore, the combustion chamber being closable by at least one inlet valve for air aspiration. To attain extensive homogeneity of the mixture formation in direct fuel injection that assures reliable, thorough combustion of the mixture, the combustion chamber is preceded at its upper end by a chamber, which opens toward the combustion chamber and has an inside cross section that is substantially smaller than the combustion chamber and increases steadily toward the combustion chamber. The injection and ignition take place in the chamber.