What is the function of turbocharger in diesel engine

What is the function of turbocharger in diesel engine?

The role of the diesel engine turbocharger is to use the energy of the exhaust gas to compress the intake air and increase the intake air volume. And the high-density mixture is sent to the combustion chamber for combustion to increase the output power of the engine, increase the torque of the engine, and thereby increase the engine power.

1. Increase the engine power per liter. When the engine displacement remains the same, the engine can inject more fuel by increasing the intake air density, thereby increasing the power of the engine. The power and torque of the engine after adding a supercharger should be increased by 20% to 30%. . On the contrary, under the same power output requirement, the cylinder bore of the engine can be reduced, and the volume and weight of the engine can be reduced.

2. Improve engine emissions. The turbocharger engine improves the combustion efficiency of the engine and reduces the emission of harmful components such as particulate matter and nitrogen oxides in the exhaust gas of the engine. It is an indispensable configuration for diesel engines to meet the emission standards above Euro II.

3. Provide plateau compensation function. In some high-altitude areas, the higher the altitude, the thinner the air, and the engine with a turbocharger can overcome the power drop of the engine caused by the thin air on the plateau.

4. Improve fuel economy and reduce fuel consumption. Because the combustion performance of the engine with turbocharger is better, it can save fuel by 3%-5%.
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