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1. (WO2010121684) INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE

Pub. No.:    WO/2010/121684    International Application No.:    PCT/EP2010/001304
Publication Date: Fri Oct 29 01:59:59 CEST 2010 International Filing Date: Thu Mar 04 00:59:59 CET 2010
IPC: F02B 37/013
F02B 37/18
F01D 17/14
Applicants: DAIMLER AG
SUMSER, Siegfried
FLEDERSBACHER, Peter
LÖFFLER, Paul
HIRTH, Torsten
Inventors: SUMSER, Siegfried
FLEDERSBACHER, Peter
LÖFFLER, Paul
HIRTH, Torsten
Title: INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE
Abstract:
The invention relates to an internal combustion engine (10) having a high-pressure exhaust gas turbocharger (18) and a low-pressure exhaust gas turbocharger (20) connected in series, each comprising a turbine (22, 24, 24') at least on the exhaust gas side (14) of the internal combustion engine (10) through which exhaust from the internal combustion engine (10) flows, wherein a bypass (32) having a blow-off valve (34) received by a turbine housing (106) of the low-pressure exhaust gas turbocharger (20) is provided, by means of which the turbine (22) of the high-pressure exhaust gas turbocharger (18) can be bypassed by the exhaust gas, and the exhaust gas can be directed into an inlet flow (36, 38, 38', 38") of the turbine (24, 24') of the low-pressure exhaust gas turbocharger (20), wherein the turbine (24, 24') of the low-pressure exhaust gas turbocharger (20) comprises a first inlet flow (36, 38, 38', 38") by means of which the exhaust gas can be fed substantially in the radial direction of the turbine wheel (116) to a turbine wheel (116) received by the turbine housing (106) of the low-pressure exhaust gas turbocharger (20), and that the turbine (24, 24') of the low-pressure exhaust gas turbocharger (20) comprises a second inlet flow (36, 38, 38', 38") by means of which the exhaust gas can be fed to the turbine wheel (116) of the low-pressure exhaust gas turbocharger (20) substantially transverse or diagonal to the radial direction of the turbine wheel (116).