What is the role of a carburetor in an internal combustion engine?

The role of a carburetor in an internal combustion engine is to mix air with fuel in the correct proportions to ensure efficient combustion. It creates a combustible mixture that is then drawn into the engine's cylinders during the intake stroke. The carburetor uses a venturi effect to create a low pressure that draws fuel from the bowl into the airflow, ensuring that the engine receives the right amount of fuel in relation to the amount of incoming air. This process is crucial for the engine to run effectively and efficiently, as the proper air-fuel mixture leads to optimal performance, power output, and fuel efficiency.

The carburetor does not regulate engine temperature, control exhaust emissions, or transfer electrical energy to the battery. Each of those functions is handled by different systems within the engine or the vehicle.