Supercharged turbocompound hybrid engine apparatus

An engine apparatus comprising:

• an internal, combustion engine (1), having an air intake line (2) and a exhaust line (20);
• a low pressure compressor (11) and a high pressure compressor (5) arranged on said air intake line (2) according to the flow direction of the air;
• a high pressure turbine and a low pressure turbine (7) arranged on said exhaust line according to the flow direction of the gases;
• first bypass means for bypassing said high pressure compressor (5),
• wherein said high, pressure turbine (6) is connected with a shaft to said low pressure compressor (11), said engine apparatus comprising a electrical, torque converter (55) which comprises at least:
• an electric generator (30) connected so as to be driven by said low pressure turbine (7);
• a first electric motor (32) connected so as to drive said high pressure compressor (5);
• electronic conversion means (31) suitable to convert the electric energy produce by said electric generator (30) and to power simply and control at least said first electric motor (32).