Yeah I just read it again, feeds power directly into the gearbox: TurbocompoundingTurbocompounding relies on utilising a larger proportion of the heat energy in the exhaust gases by means of a power turbine 1. The power turbine is located in the exhaust pipe downstream from turbocharger 2 and the exhaust brake. The power turbine is of the same type as the one in the turbocharger.
The exhaust gases from the engine propel the turbocharger turbine at high speed while the compressor side of the turbocharger supplies air to the combustion process. The exhaust gases pass the exhaust brake and continue to the power turbine in the turbocompound unit, which rotates at a speed of approximately 50,000 rpm.
The power is transmitted via the gear 3 to a hydraulic coupling 4, which evens out speed variations between the turbocompound unit output shaft and the crankshaft. Via another set of gears consisting of a hydraulic coupling gear, an intermediate gear and a crankshaft gear, the power is then transmitted to the engine flywheel 5 and on to the gearbox .
In comparison to a conventional engine, turbocompounding offers a number of advantages. The output and the torque is higher and the fuel consumption is lower in comparison to an identical engine without a turbocompound unit.