Turbocharger

A turbocharger assembly comprising:

• a turbine assembly comprising:
• a turbine wheel configured to rotate about an axis of rotation,
• an exhaust incoming-flow duct configured to receive exhaust gases from an exhaust manifold of an engine at a first end of the exhaust incoming-flow duct and to deliver the exhaust gases at a second end of the exhaust incoming-flow duct to the turbine wheel in an annular flow-path and in a first direction of the turbine assembly that is substantially parallel to the axis of rotation, the annular flow-path being at an annular-flow-path portion of the exhaust incoming-flow duct, and
• the turbine wheel having turbine blades configured to accept the exhaust gases from the exhaust incoming-flow duct, redirect the exhaust gases, and discharge the exhaust gases along an exhaust outgoing-flow duct in a second direction of the turbine assembly that is substantially opposite to the first direction of the turbine assembly, the exhaust outgoing-flow duct passing radially inside of an inner boundary of the annular-flow-path portion of the exhaust incoming-flow duct;
• a rotating shaft coupled to the turbine wheel, the rotating shaft coinciding with the axis of rotation;
• and
• a compressor assembly comprising:
• an impeller wheel configured to rotate about the axis of rotation, the impeller wheel being coupled to the rotating shaft,
• an air incoming-flow duct configured to receive air at a first end of the air incoming-flow duct and to deliver the air at a second end of the air incoming-flow duct to the impeller wheel in a first direction of the compressor assembly that is substantially parallel to the axis of rotation, and
• the impeller wheel having impeller blades configured to accept the air from the air incoming-flow duct, compress and redirect the air, and discharge the air along an air outgoing-flow duct in an annular flow-path in a second direction of the compressor assembly that is substantially opposite to the first direction of the compressor assembly, the annular flow-path being at an annular-flow-path portion of the air outgoing-flow duct, the air incoming-flow duct passing radially inside of an inner boundary of the annular-flow-path portion of the air outgoing-flow duct.