What supplies fresh air to the air box in a two-stroke diesel engine?

In a two-stroke diesel engine, the correct mechanism for supplying fresh air to the air box is the blower. The blower plays a crucial role in the engine's air management system by drawing in ambient air and forcing it into the combustion chamber to maintain optimal combustion conditions.

The functionality of a blower is particularly important in two-stroke designs, as these engines have a different intake and exhaust process compared to four-stroke engines. In a two-stroke diesel engine, the blower ensures that enough fresh air is available for combustion during the engine cycle, thereby improving the engine's overall efficiency and performance.

Additional components like a supercharger can also introduce compressed air, but generally, in the context of typical two-stroke diesel engines, the blower is the primary component tasked with this function. The auxiliary fuel pump and fuel pump, on the other hand, focus on delivering fuel to the engine rather than managing air supply.