Hybrid exhaust turbine turbocharger

A hybrid exhaust turbine turbocharger comprising:

• a turbine unit configured to be driven by exhaust gas guided from an internal combustion engine;
• a compressor unit configured to be driven by the turbine unit so as to pump outside air to the internal combustion engine;
• a casing configured to support the turbine unit and the compressor unit;
• a silencer connected to an intake system of the internal combustion engine and supported by the casing via the compressor unit and being disposed upstream of the compressor unit;
• a shell housing having a bottom section and a recess therein, the shell housing being disposed in a midsection of the silencer, and the recess accommodating a generator;
• an oil reservoir configured to hold a lubricant after the lubricant has lubricated a bearing disposed within the generator and dripped from the generator, the oil reservoir being disposed at a bottom section of the shell housing;
• and
• a lubricant discharge tube communicating with the oil reservoir, and being configured to return the lubricant accumulated in the oil reservoir by gravity to an oil tank disposed downstream,
• wherein one end of the lubricant discharge tube is connected to lubricant outlet that is provided at a bottom section of a front surface of the oil reservoir.