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Combustion engine having exhaust gas recirculation

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TLDR
In this article, a combustion engine having an exhaust-gas-driven turbo compressor is provided with a device (20) for recirculating exhaust gases to the engine, this device being connected to the exhaust system of the engine upstream of the turbo compressor and providing with a cooling device (17) for the recirculated exhaust gases.
Abstract
A combustion engine having an exhaust-gas-driven turbo compressor (6) is provided with a device (20) for recirculating exhaust gases to the engine, this device being connected to the exhaust system of the engine upstream of the turbo compressor (6) and being provided with a cooling device (17) for the recirculated exhaust gases The engine is provided with at least two exhaust valves (2, 3) per cylinder and has divided exhaust-gas flow, each cylinder being connected by a first exhaust valve (2) to a first exhaust collector (4), which leads to the turbine (7) in the turbo compressor, and each cylinder being connected by a second exhaust valve (3) to a second exhaust collector (5), which is connected to the exhaust system of the engine downstream of the turbine (7) The second exhaust collector (5) forms part of the device (20) for recirculating exhaust gases to the engine and is also connected to the inlet (12) of the engine

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Citations
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References
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Patent

Internal combustion engine with an exhaust gas recirculation system

TL;DR: In this paper, an exhaust gas recirculation line extends between the exhaust gas duct upstream of the turbine and the air supply duct downstream of the turbocharger, where cooling and heating means are arranged in the exhaust manifold.
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Arrangement for return of exhaust gases in supercharged engines with parallel turbines

TL;DR: In this paper, an EGR (Exhaust Gas Recirculation) turbine (6) is incorporated in the exhaust gas flow in parallel with the turbine (4) of the supercharger.
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Two turbocharger engine emission control system

TL;DR: In this paper, a valve is connected in fluid communication with a mixer to deliver at least a portion of the remainder of exhaust gases to the mixer for mixing with compressed air in the mixer.
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Method and system for operating an engine having a turbocharger with at least two discrete positions and exhaust gas recirculation (EGR)

TL;DR: In this paper, a method and system for controlling an engine having a turbocharger with at least two discrete positions and exhaust gas recirculation (EGR) is presented.
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Turbocharger including a disk to reduce scalloping inefficiencies

TL;DR: In this article, a turbocharger for an internal combustion engine is provided with a compressor having an inlet receiving combustion gas and an outlet; and a turbine drivingly coupled to the compressor.