What is the function of the turbocharger in a diesel engine?

The turbocharger's primary function in a diesel engine is to increase engine power by forcing more air into the combustion chamber. This is achieved by using exhaust gases to spin a turbine connected to a compressor. As the compressor spins, it draws in more air and compresses it before sending it into the engine's cylinders.

This increased airflow allows for more fuel to be injected during the combustion process, leading to a more powerful explosion in the cylinders. As a result, the engine can produce more power without significantly increasing its size or weight.

While reducing exhaust emissions, enhancing fuel efficiency, and controlling engine temperature are important considerations in engine design, they are not the primary function of the turbocharger. The turbocharger specifically focuses on boosting the engine's power output through improved airflow.