Patent · US Active

Internal combustion engine having an exhaust gas turbocharger and an exhaust gas recirculation system

US7562529B2 · kind B2 · utility

82Cited by

5References

12Claims

0Family size

Assignee

Daimler AG · DE

Inventors

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

Key dates

Filing date	Feb 16, 2007
Grant date	Jul 21, 2009
Priority date	—
Expiry date	Jul 12, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In a supercharged internal combustion engine having an intake duct and an exhaust gas recirculation system and comprising an exhaust gas turbine with two separate flow passages of different flow cross-sections arranged upstream of a turbine rotor of the exhaust gas turbine, each flow passage being in communication with a respective engine exhaust line for supplying it with exhaust gas and an exhaust gas recirculation line extending from one of the engine exhaust lines to the engine intake duct, a bypass line bypassing the exhaust gas turbine is provided and a common control element is arranged in the recirculation line of the exhaust gas recirculation system and in the bypass line for controlling the exhaust gas flow from the recirculation line selectively to none or any of the intake duct and the turbine bypass line.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.