Turbo-compound system

Turbo-compound system comprising a combustion engine (E) and a first turbine (TBC) fed by exhaust gasses of the combustion engine and having a shaft connected with an engine crankshaft for providing the latter with mechanical energy and wherein a heat recovery (WHR) system is coupled with the combustion engine (E) for carrying out a Rankine Cycle by exploiting the heat produced by the combustion engine for producing mechanical energy.