A turbocharger is a device that uses exhaust gas to drive the turbine to rotate, thereby compressing intake air, increasing engine intake pressure, and increasing intake volume. It consists of parts such as an intake duct, compressor, turbine, exhaust duct, and exhaust valve.

The intake duct is the starting part of the turbocharger, located between the air filter and the turbocharger, and its main function is to introduce external air into the turbocharger. The intake duct is usually made of plastic or metal and has good corrosion resistance and high temperature resistance.

The compressor is the core component of a turbocharger, consisting of multiple impellers and a casing. When the exhaust gas rotates through the turbine, the turbine drives the compressor impeller to rotate, compressing the surrounding air and sending it into the engine. Impellers are usually made using casting or forging processes to improve their wear resistance and high-temperature resistance.

The turbine is another important component of a turbocharger, which is also composed of multiple blades and is driven to rotate by the high-speed flow of exhaust gas. The working principle of a turbine is similar to that of a water turbine in a hydroelectric power plant. The faster the turbine rotates, the more significant the boosting effect.

The exhaust duct is the outlet part of the turbocharger, which connects the turbocharger and the exhaust valve. The exhaust duct is usually made of metal and has good high-temperature resistance and corrosion resistance.

The exhaust valve is a control component of the turbocharger, which can adjust the turbocharging effect of the turbocharger by controlling the flow rate of exhaust gas. The exhaust valve is usually electrically or pneumatically driven and can be controlled through the vehicle's computer or manual operation.