General information about the turbocharger

Diesel engines 68 kW (92 hp) and 85 kW (115 HP) equipped with a turbocharger. In the turbocharger on one shaft there are two wheels, turbine and compressor, which are located in housings separated from each other. The exhaust gases are used to drive the turbine wheel. They accelerate the turbocharger rotor to a speed of 120,000 rpm. Since the wheels have a common rotor, the compressor wheel rotates at the same speed and pumps fresh air into the engine cylinders.

Thanks to the high fill factor in existing engines, power gains of up to 100% can be achieved, and torque is also increased. The increase in power depends, among other factors, on the boost pressure, which for passenger car engines is 0.4-0.8 bar (total boost pressure approx. 1.8 bar). If the boost pressure rises above the factory setting, the bypass valve in the turbocharger opens 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 assembly is replaced.