Patent · US Active

Internal combustion engine

US8793997B2 · kind B2 · utility

1Cited by

8References

12Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Heiko Beil · Stuttgart, DE
Florian Wegenast · Esslingen am Neckar, DE

Key dates

Filing date	Feb 7, 2012
Grant date	Aug 5, 2014
Priority date	—
Expiry date	Aug 8, 2032

Classification

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

Abstract

In an internal combustion engine and a method of operation the internal combustion engine which includes a high pressure and a low pressure turbocharger having exhaust gas turbines arranged in series in an engine exhaust line provided with a high pressure exhaust gas recirculation line and a low pressure exhaust gas recirculation line via which exhaust gas can be conducted to an inlet line of the engine, the arrangement is switchable depending on the engine speed between an exhaust gas recirculation by way of the high pressure line and an exhaust gas recirculation by way of both, the high pressure and the low pressure line, to achieve low emissions and low fuel consumption.

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