What is the primary function of exhaust gas turbochargers?

The primary function of exhaust gas turbochargers is to increase engine power output. Turbochargers achieve this by utilizing the energy from the engine's exhaust gases to drive a turbine, which in turn forces more air into the engine's intake system. This process allows for a greater volume of air to be compressed and mixed with fuel, resulting in a more powerful combustion process. As a result, the engine can produce more power without having to increase its size, which is particularly beneficial for improving performance and efficiency in various marine and automotive applications.

While improving fuel efficiency and reducing emissions are also important benefits associated with turbocharging, the fundamental purpose is to enhance the power output of the engine. Cooling exhaust gases primarily plays a role in managing temperature and improving efficiency but is not a function of the turbocharger itself. Therefore, the focus remains on the turbocharger's ability to amplify an engine's power by harnessing the energy from exhaust gases.