High And Low Temperature Engine Cooler

High and Low Temperature Engine Cooler

High Temperature Cooling Circuit: The engine will generate a lot of heat during high load operation, at this time, the high temperature cooler is mainly responsible for maintaining the temperature of the engine coolant at a high set value (usually between 80 - 105 ℃). Coolant in the engine block, cylinder head and other parts of the absorption of heat, flow back to the high-temperature cooler. High-temperature cooler through the heat exchange with the outside air or other cooling media, the heat of the coolant will be emitted, so that the coolant temperature is reduced, and then recirculated back to the engine, and so on and so forth, in order to maintain the normal operation of the engine in high-temperature operating conditions.

Low-temperature cooling circuit: In the early engine startup, low load operation or low ambient temperature, the engine produces less heat, at this time the low-temperature cooler began to work. It controls the temperature of the coolant at a lower set value (generally around 60 - 80℃). The low-temperature cooling circuit is usually independent of the high-temperature cooling circuit, but is connected and coordinated through a number of control valves and pipes. When the engine needs more cooling, the coolant from the low-temperature cooler can be mixed with the coolant from the high-temperature cooling circuit to provide more adequate cooling.