Which component is responsible for cooling the compressed air before it enters the combustion chamber?

Which component is responsible for cooling the compressed air before it enters the combustion chamber?

• A. Intercooler
• B. Radiator
• C. Aftercooler
• D. Muffler

Answer: (C)

When air is compressed by a turbocharger, its temperature climbs. Cooling that compressed air before it enters the cylinders makes the air denser, so more oxygen is available for combustion. This improves power and efficiency and helps keep intake temperatures from getting too high. The device that does this cooling right before the air enters the combustion chamber is the aftercooler. It uses engine coolant to remove heat from the compressed air as it flows toward the intake manifold. An intercooler serves a similar purpose but is placed between stages of compression (in systems with multiple compression stages). The radiator cools coolant, not the air, and the muffler is for reducing exhaust noise.

When air is compressed by a turbocharger, its temperature climbs. Cooling that compressed air before it enters the cylinders makes the air denser, so more oxygen is available for combustion. This improves power and efficiency and helps keep intake temperatures from getting too high.

The device that does this cooling right before the air enters the combustion chamber is the aftercooler. It uses engine coolant to remove heat from the compressed air as it flows toward the intake manifold. An intercooler serves a similar purpose but is placed between stages of compression (in systems with multiple compression stages). The radiator cools coolant, not the air, and the muffler is for reducing exhaust noise.