The OMEGA diesel engine is equipped with a turbocharger. In a turbocharger, both turbine wheels are located on the same shaft, but in housings independent of each other. Turbine wheels are driven by exhaust gases. The wheels rotate the shaft at speeds up to 120,000 rpm. Since the exhaust and intake rotors are on the same shaft, fresh air is pumped into the cylinders at a constant speed.
Due to the high volumetric efficiency (efficiency) The increase in power in such engines is up to 100%. The increase in power is influenced by boost pressure, which in passenger car engines ranges from 0.4 to 0.8 bar (tire pressure approx. 1.8 bar). If the boost pressure exceeds the value set by the manufacturer, then the bypass valve opens and the pressure decreases.
Along with engine power, the presence of a turbocharger also increases torque, which primarily has a beneficial effect on the smooth operation of the engine. In contrast to petrol engines, due to the supercharging in diesel engines, it is not necessary to reduce the compression, since the injected fuel is completely used up even at low speeds.
The turbocharger is an element that must work with high precision. Therefore, it is recommended that only a specialist repair it. As a rule, in the event of a malfunction of the turbocharger, it is replaced as a set.
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