The traditional turbocharger makes use of part of the thermal energy in the exhaust gases. In the process, the temperature drops by around 100°C to around 600°C. The turbocompound unit is an additional exhaust turbine mounted in the exhaust pipe, downstream of the normal turbocharger. Its turbine, spinning at 50,000 r/min (at an engine speed of 1,800), extracts more residual energy from the exhaust gases, lowering the exhaust temperature at full power by another 100°C to below 500°C.


Hmm interesting