Method for operating an internal combustion engine

US6892691B1 · kind B1 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Stephan Uhl · Friedrichshafen, DE
• Andreas Roth · Karlsruhe, DE

Key dates

• Filing date: Aug 30, 2000
• Grant date: May 17, 2005
• Expiry date: Oct 2, 2021

Classification

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

Abstract

The operation of an internal combustion engine under unfavorable operating conditions can lead to the formation of deposits in the combustion chamber (4). A method and an arrangement for operating an internal combustion engine (1), especially of a motor vehicle, is suggested, wherein fuel is conducted into a combustion chamber (4) and is there combusted. When deposits are detected in the combustion chamber (4), measures are initiated in a targeted manner for cleansing the combustion chamber (4). A knocking combustion is especially introduced and/or a cleansing liquid is added to the inducted combustion air.