Internal combustion engine having an exhaust-gas turbocharger

US7051527B2 · kind B2 · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Wolfram Schmid · Eislingen/Fils, DE
• Alfred Küspert · Esslingen am Neckar, DE
• Rolf Hutmacher · Winnenden, DE
• Siegfried Sumser · Stuttgart, DE

Key dates

• Filing date: Jan 29, 2004
• Grant date: May 30, 2006
• Expiry date: Mar 23, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86871
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In an internal combustion engine having an exhaust system with a turbocharger including an exhaust gas turbine disposed in the engine exhaust duct, a bypass line connected to the exhaust duct upstream of the turbine including a valve for diverting exhaust gas flow and bypassing the turbine, the valve includes a valve body having first and second exhaust gas flow control openings of different flow cross-sections and being adjustable between a first position in which the first flow control openings is in communication with the exhaust gas duct, a second position in which the second flow control opening is in communication with the exhaust gas duct and a blocking position in which exhaust gas bypass flow through the valve is blocked.