Fans in Internal Ignition Combustion engines play an integral part of the engine cooling system (Radiator, thermostat, fan, oil cooler, the cooling water) that keeps the engine at working temperature for efficient and economical working. Fans serves draws atmospheric air through the radiator and thus increases the efficiency of the radiator in cooling hot water. As well, fans throws fresh air over the outer surface of the engine, which takes away the heat conducted by the engine parts and thus increases the efficiency of the entire cooling system.