How Does a Turbocharged Engine Work?

[StIris]

A turbocharged engine operates by utilizing exhaust gases to drive more air into the engine for combustion, thereby enhancing power output. A turbocharged engine is one equipped with a turbocharger. The turbocharger essentially functions as an air compressor, increasing air intake by compressing air. It harnesses the inertial force of exhaust gases expelled by the engine to spin a turbine in the turbocharger's housing. This turbine, in turn, drives a coaxial impeller that forces air from the air filter into the cylinders under pressure. As engine speed increases, the exhaust gas velocity and turbine speed rise in tandem, enabling the impeller to compress more air into the cylinders. The increased air pressure and density allow for more fuel to be burned, and by adjusting fuel delivery and engine speed accordingly, the engine's output power can be significantly boosted. The primary purpose of turbocharging is to increase the engine's air intake, thereby elevating its power and torque, making the vehicle more powerful. Installing a turbocharger can increase an engine's maximum power by 40% or more compared to its naturally aspirated counterpart. This means the same engine can generate substantially greater power after turbocharging.