General information about turbocharger (Scorpio 2)

Diesel engines with a capacity of 68 kW (92 hp) and 85 kW (115 hp) are equipped with a turbocharger. In the turbocharger, there are two wheels on one shaft, a turbine wheel and a compressor wheel, which are located in separate housings. Exhaust gases are used to drive the turbine wheel. They accelerate the turbocharger rotor to a rotation speed of 120,000 1/min. Since the rotor is common to the wheels, the compressor wheel rotates at the same speed and pumps fresh air into the engine cylinders.

Thanks to the high filling factor, the existing engines can achieve a power increase of up to 100%, and the torque also increases. The power increase depends, among other factors, on the boost pressure, which for passenger car engines is 0.4-0.8 bar (full boost pressure is approximately 1.8 bar). If the boost pressure becomes greater than the factory setting, a bypass valve opens in the turbocharger and the pressure decreases.

The turbocharger is an extremely precisely manufactured unit. Therefore, in case of repair, it is recommended to contact a specialist. As a rule, if a defect occurs, the turbocharger is replaced as an assembly.