| 摘要 |
A twin scroll exhaust gas turbocharger for an internal-combustion engine, includes a turbine housing and a first and a second gas inlet port separated from one another by the turbine housing. The inlet ports lead into a first and a second spiral duct, respectively, which extend radially on the outside around an exhaust gas turbine rotatable about an axis. The gas inlet ports are arranged at least in sections parallel to one another in the turbine housing and radially with respect to the axis of rotation in a mutually spaced manner. The first spiral duct, which connects to the first gas inlet port arranged closer to the axis of rotation, extends up to 180° around the exhaust gas turbine. The second spiral duct, which connects to the second gas inlet port farther away from the axis of rotation, extends up to 180° around the remaining circumference of the exhaust gas turbine. As a result, thermal stress to the turbine housing is significantly reduced.
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