What function do the fuel discharge nozzles perform in the Cessna 172?

The function of the fuel discharge nozzles in the Cessna 172 is to mix fuel with air immediately before it enters the combustion chamber of the engine. This mixing process is crucial for efficient combustion.

The nozzles atomize the fuel, creating a fine mist that effectively combines with incoming air. This mixture allows for better fuel combustion, leading to improved engine performance and reduced emissions. The design of the nozzles helps ensure that the fuel is delivered at the correct rate and in the proper form to support optimal engine operation, which enhances overall efficiency and power output.

The other options either refer to processes that do not occur at the fuel discharge nozzles or describe functions that are managed by different components in the engine or fuel system. For example, fuel filtration is handled by a separate fuel filter, while fuel storage is managed in the fuel tanks.