Exhaust driven turbocharger

摘要

In an exhaust gas turbocharger for an internal combustion engine having a turbine rotor 8 and a casing 3, at least two inlet passages 10, 11 are provided which are separated by a partition 12. A bypass passage 17, is provided leading to an annular passage 25, flow to the passage 25 being controlled by a rotary valve 22 positioned in the partition 12. In order to provide a double- or multi-flow exhaust gas turbocharger, such that the build-up pressure in the individual flows can be adjusted as variably as possible, the bypass valve 22 can be used alternatively to produce or interrupt the flow connection between one of the two inlet passages 10, 11 or both inlet passages simultaneously and the bypass passage 17.