Turbocharger is a supercharging device for automotive engines. Its function is to increase the density and calorific value of the mixture in the cylinder by increasing the intake air volume and pressure of the engine, and improve combustion efficiency, thereby improving the output power and torque of the engine.

A turbocharger is a compressor driven by exhaust gas, consisting of a wheel blade and a stationary blade, all of which are installed in a housing. Exhaust gas enters the turbocharger from the engine exhaust pipe, pushing the wheel blades to rotate. The rotation of the wheel blades causes air to be compressed through the stationary blades, increasing the intake pressure and density. By increasing the pressure and density of the mixture in the cylinder, combustion efficiency is improved, resulting in higher engine output power and torque.

The role of turbocharger can not only improve the output power and torque of the engine, but also improve its fuel economy. This is because turbochargers enable the engine to operate at higher pressures, thereby burning fuel more efficiently. This means that the engine can produce the same output power at lower rotational speeds, and therefore more fuel efficient.

In addition, turbocharger can also improve the response speed of the engine, reduce the problem of turbine lag, and make the engine more drivable at low speeds. Turbochargers can also reduce vehicle emissions by increasing the efficiency of the exhaust system. When the turbocharger operates at high pressure, exhaust gas is more effectively discharged, thereby reducing the emission of harmful substances.

Although turbocharger can bring many benefits, it also has some disadvantages. Due to the use of exhaust gas to provide power for turbochargers, they may experience delays or delays in response when rotating at low speeds or accelerating rapidly.

In addition, the maintenance and repair costs of turbochargers are high, requiring regular cleaning and replacement of components. When choosing a turbocharger, consumers need to consider many factors, such as how much power is required, budget, and so on.