Function: Oil cooler is used to maintain the safe operating temperature of engine oil by cooling the temperature of the oil. Reducing temperature helps extend the life of the oil and keeps it running efficiently, preventing wear and reducing the risk of engine failure.Structure and Design: Oil coolers usually consist of one or more heat exchangers made of aluminum or copper alloy, in which the oil will circulate and transfer heat to the cooling medium (e.g. air or water) for cooling. A fan or water pump can be used to enhance the cooling process.Application: Oil coolers are commonly used in automobile oil systems, such as the cooling system of the engine, transmission system, steering system and brake system. It is also used in industrial machinery such as air compressors, generators and other types of machinery.Type: There are many different types of oil coolers, including air-cooled oil coolers and water-cooled oil coolers. Each type has its own advantages and limitations, and the choice depends on the specific requirements of the application.