Internal combustion machine, water craft, and method for operating the power supply system of a ship using an internal combustion engine

An internal combustion engine having:

• a combustion engine with an exhaust end and a charger fluid end and a charger system including:
• an exhaust gas turbocharger configured to charge the combustion engine, the exhaust gas turbocharger having a compressor arrangement on the charger fluid end and having a turbine arrangement on the exhaust end,
• a supercharger, a primary end of which is connected to the charger fluid end, and a secondary end of which is connected to the exhaust end, and
• an electric machine configured to be a motor/generator, the electric machine coupled to the combustion engine, wherein the electric machine is configured to be driven by the combustion engine as a generator, or is configured to drive the combustion engine as a motor, and wherein the supercharger is configured to be driven directly by the electric machine via a mechanical drive coupling, wherein the mechanical drive coupling has a propeller gearing, wherein a drive shaft of the electric machine is coupled to the same on an input end thereof.

A watercraft having an internal combustion engine, comprising:

• a combustion engine with an exhaust end and a charger fluid end and a charger system including:
• an exhaust gas turbocharger configured to charge the combustion engine, the exhaust gas turbocharger having a compressor arrangement on the charger fluid end and having a turbine arrangement on the exhaust end,
• a supercharger, a primary end of which is connected to the charger fluid end, and a secondary end of which is connected to the exhaust end;
• and
• an electric machine configured to be a motor/generator, the electric machine coupled to the combustion engine, wherein the electric machine is configured to be driven by the combustion engine as a generator or is configured to drive the combustion engine as a motor, and wherein the supercharger is configured to be driven directly by the electric machine via a mechanical drive coupling;
• wherein the engine is configured to be operated in an interval mode with repeating time intervals.