A turbocharger is actually an air compressor that increases intake by compressing air. It uses the inertia impulse of exhaust gas discharged by the engine to drive the turbine inside the turbine chamber, which in turn drives a coaxial impeller that compresses the air sent by the air filter pipeline, causing it to be pressurized and enter the cylinder. When the engine speed increases, the exhaust gas discharge speed and turbine speed also increase synchronously. The impeller compresses more air into the cylinder, and the pressure and density of the air increase to burn more fuel. By increasing the fuel quantity and adjusting the engine speed accordingly, the output power of the engine can be increased.