ENGINE SYSTEMS CONTINUED
Air from the air filters enters the turbocharger, which increases engine efficiency. The air is compressed and heated
to about 300°F (150°C) before the air is forced to the aftercooler. As the air flows through the aftercooler, the
temperature of the compressed air lowers to about 120°F (50°C). Cooling of the inlet air increases combustion
Figure 3. Turbocharger.