Patent ID: 8333550

Claim:
A twin scroll exhaust gas turbocharger for an internal-combustion engine, comprising: a turbine housing; first and second gas inlet ports separated from one another by the turbine housing, the first and second gas inlet ports leading, respectively, into first and second spiral ducts that extend radially on an exterior around an exhaust gas turbine of the twin scroll exhaust gas turbocharger, the exhaust gas turbine being rotatable about an axis; wherein the first and second 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; wherein 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, and wherein the second spiral duct, which connects to the second gas inlet port arranged further from the axis of rotation, extends up to 180° around a remaining circumference of the exhaust gas turbine, and wherein the turbine housing has at least one coolant duct through which a coolant is flowable, the coolant duct being arranged at least between the first and second gas inlet ports.