Turbocharger
Turbocharger is a centrifugal air pump which is driven by the engine exhaust gases.
Mounted on RH side of engine on the exhaust manifold.
Turbocharger draws the fresh air charge, compresses and delivers to the engine inlet manifold through an intercooler.
It has a turbine wheel which is operated by exhaust gases and a compressor wheel to compress the fresh air charge. Both the wheels are coupled onto a common shaft which is supported on bush bearings and lubricated by engine oil.
A wastegate is provided to limit the turbocharger turbine wheel speed and the boost pressure.
At higher engine speeds the wastegate valve opens allowing the partial flow of exhaust gases directly to the exhaust pipe.