Turbocharger

TURBOCHARGER

This consists essentially of two impellers (1) fitted to the same shaft (2), which rotates on floating bearings lubricate via a branch (3) of the engine lubrication system.

The oil used dissipates a proportion of the great quantity of heat given up by the exhaust gas to the turbine.

The turbocharger is fitted with a wastegate (4) controlled by a pneumatic actuator (5), which partially restricts the passage of exhaust gases to the turbine according to engine power/torque requirements.

The pneumatic actuators is controlled by the engine control unit via a solenoid.

1. Impellers
2. Shaft
3. Lubrication
4. Wastegate
5. Actuator

EMISSION CONTROL DEVICES

The car is equipped with devices designed to reduce polluting emissions in accordance with Euro 3 requirements:

• Oxidising catalytic converter (1)
• Exhaust gas recirculation circuit (EGR) (2)
• Crankcase blow-by vapour recirculation circuit (3).