Improved turbocompound system

An improved turbocompound system, the system comprising an internal combustion engine (E) having an exhaust manifold (Ex) and an exhaust line (IL) connected to and adjacent with the exhaust manifold, the internal combustion engine being equipped with a gearbox having a secondary output shaft (G1), an exhaust gas purification system (ATS) arranged on the exhaust line (IL), a power turbine (PT) arranged on the exhaust line (IL) downstream of the purification system (ATS), wherein the power turbine (PT) has a respective shaft connected to the secondary output shaft (G1).