Sequential turbocharger system for an internal combustion engine

Details Sequential turbocharger system for an internal combustion engine Sequential turbocharger system for an internal combustion engine

1991-06-17

1992-09-01

Koczo, Michael

Power plants

Fluid motor means driven by waste heat or by exhaust energy...

With supercharging means for engine

60612, F02B 3712, F02M 2507

Patent

active

051428660

ABSTRACT:
A sequential turbocharger system for an internal combustion engine with an exhaust gas recirculation system. The sequential system includes a large-volume turbocharger and a small-volume turbocharger, which are arranged in series in the direction of the flow of gases. A bypass passageway is connected to an exhaust pipe to thereby bypass the turbine of the small-volume turbocharger, and an exhaust switching valve is arranged in the bypass passageway for controlling the flow of exhaust gas to the turbine of the small-volume turbocharger. The EGR system includes an exhaust gas recirculation passageway for introducing an amount of exhaust gas into the intake pipe of the engine. The exhaust gas for recirculation is taken out from the intake pipe at a position located between the turbines of the small-volume and large-volume turbochargers.

REFERENCES:
patent: 3906729 (1975-09-01), Connor et al.
patent: 4474008 (1984-10-01), Sakurai et al.
patent: 4669442 (1987-06-01), Nakamura et al.

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