Turbocharger Foudamentals
The turbocharger is indeed a kind of air compressor. It increases the quantity of gas getting in by compressing air. It is mainly composed by the turbine, the air compressor and the bearing housing.
The exhaust gas air inlet of the turbine and the engine exhaust pipe are connected, and the exhaust gas air outlet joins the exhaust pipeline. The air inlet of the air compressor is connected with the air filter pipeline, and the air outlet joins the engine or the air inlet of the intercooler. The turbine wheel and the air compressor impeller install in the turbine and the air compressor respectively, and they use a rotor shaft join together rigidly. The main function of the bearing housing is to support, lubricate the rotor shaft and to join turbine and compressor together.
The energy of exhaust gas which is given off from the engine drives the turbine wheel to revolve in a high speed brings along the high speed revolutions of the coaxial air compressor impeller. (The highest rotation speed can be hundred thousands of revolutions per minute.) The air enters the air cylinder of the engine by the air compressor. After compression, the density of air increases, and this thus increases quantity of air getting into the engine which will supply more fuel to be burned completely. Therefore the power of the engine will be increased. Meanwhile, as a result of the improvement of the combustion condition, the ratio of consumption of fuel is reduced, and emission of the harmful waste gas is decreased. It can also reduce the noise.
In high plateau area, because of the rare air, the power of the engine which is nature inspiration falls down. The application of turbocharger on the engine can compensate the lost power.
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