US 12,345,196 B2
Exhaust gas turbocharger arrangement and internal combustion engine
Stefan Ill, Herdwangen-Schönach (DE)
Assigned to Rolls-Royce Solutions GmbH, Friedrichshafen (DE)
Filed by Rolls-Royce Solutions GmbH, Friedrichshafen (DE)
Filed on Mar. 15, 2024, as Appl. No. 18/606,324.
Application 18/606,324 is a continuation of application No. PCT/EP2022/077113, filed on Sep. 29, 2022.
Claims priority of application No. 10 2021 125 235.0 (DE), filed on Sep. 29, 2021; and application No. PCT/EP2022/077113 (WO), filed on Sep. 29, 2022.
Prior Publication US 2024/0218825 A1, Jul. 4, 2024
Int. Cl. F02B 37/18 (2006.01); F02M 26/07 (2016.01)
CPC F02B 37/183 (2013.01) [F02M 26/07 (2016.02); F05D 2220/40 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An exhaust-gas turbocharger arrangement of an internal combustion engine, the exhaust-gas turbocharger arrangement comprising:
three exhaust-gas turbochargers configured for supercharging the internal combustion engine and for being arranged above an engine top side of an engine of the internal combustion engine, the three exhaust-gas turbochargers being a high-pressure exhaust-gas turbocharger, a first low-pressure exhaust-gas turbocharger, and a second low-pressure exhaust-gas turbocharger;
a high-pressure stage, which includes the high-pressure exhaust-gas turbocharger;
a low-pressure stage, which includes the first low-pressure exhaust-gas turbocharger and the second low-pressure exhaust-gas turbocharger; and
an exhaust-gas conduit, which includes a high-pressure conduit, a low-pressure conduit, and a high-pressure stage bypass, the low-pressure conduit including a bifurcated pipe between the high-pressure exhaust-gas turbocharger of the high-pressure stage and the first low-pressure exhaust-gas turbocharger and the second low-pressure exhaust-gas turbocharger of the low-pressure stage, the high-pressure conduit including an engine exhaust-gas conduit and a high-pressure stage bypass line, the high-pressure stage bypass line including a first end and a second end and being connected at the first end to the engine exhaust-gas conduit and at the second end to the bifurcated pipe, the high-pressure stage bypass line further including a part running below the bifurcated pipe and a bypass control element in the part of the high-pressure stage bypass line running below the bifurcated pipe.