P400 Good Performance Fs Elliott Intercooler

The energy produced by the compression process behaves as heat. The heat is removed before use (or further compression), thus requiring a pre-cooler, intercooler and  aftercooler.

Intercooler:
Most industrial compressors currently in operation are multi-stage designs. In order to optimize the cost of compressed gas, it is common to use multi-stage industrial compressors. When the air compressor compresses air, heat is generated, which causes the air to expand, and it is necessary to increase the HP for further air compression. It is suitable for the first and second stages of a multi-stage air compressor. The function of the compressor intercooler is to provide cooler, drier, and denser air for the next stage of compression.

Aftercooler:
The cooler is followed by a heat exchanger that removes heat from the compressed air. The most common compressor after the cooler uses cold ambient air or cold water to remove heat, which also effectively removes moisture from the compressed air.

Oil cooler:

The purpose of the engine oil cooler is to allow the engine's cooling system to remove excess heat from the oil. These types of coolers are usually of the water-to-oil type of heat exchanger. 
The oil then flows through the tubes of the cooler while the engine coolant flows around the tubes.