How an After cooler works?

Come From:RISHENG Time:2018-06-06 Views:2508 Share:

What is an after cooler?

An after cooler is an intake air cooling device commonly used on turbocharged and supercharged engines.

What does it do?

An after cooler cools the air compressed by the turbo/supercharger, reducing its temperature and thereby increasing the density of the air supplied to the engine.

How does it work?

As the air is compressed by a turbo/supercharger it gets very hot, very quickly. As its temperature climbs, its oxygen content (density) drops, so by cooling the air, an after cooler allows denser, more oxygen rich air to the engine, allowing more fuel to be burned, thus improving combustion and giving more power. It also increases reliability as it provides a more consistent temperature of intake air to the engine which allows the air fuel ratio of the engine to remain at a safe and steady level.

There are two types of after coolers; Air-to-Air and Air-to-Water.

An Air-to-Air after cooler extracts heat from the compressed air by passing it through its network of tubes with cooling fins. As the compressed air is pushed through the after cooler it transfers the heat to the tubes and, in turn to the cooling fins. The cool air from outside, traveling at speed, absorbs the heat from the cooling fins reducing the temperature of the compressed air. The advantages of this system are simplicity, lower cost and light weight. These factors make it by far the most common form of intercooling. The down sides can be a longer intake length (as the after cooler is usually at the front of the car) and more variation in temperature than the Air-to-Water type.

This article comes from turbosmart edit released

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