Engine radiator principle:
The radiator is operated by the loss of thermal energy from the coolant. In order to ensure the proper temperature of the internal combustion engine, the heat loss of the cooling water is indispensable. The water pumped by the engine is generally used to force the cooling water to be circulated in various parts of the engine. The device that absorbs the heat generated by the engine and dissipates it into the air is the radiator.
This heat dissipation accounts for about 20% to 30% of the total heat generated by the engine.
A brief history of engine radiator development:
In 1901, the first engine radiator appeared in the United States;
In 1904, mass production of engine radiators began in the UK;
In 1935, Japan began to develop the engine radiator industry;
In 1956, China FAW Plant began to produce engine radiators.
Engine radiator material:
When selecting the material of the radiator, the following points are mainly considered: good heat transfer performance, strong corrosion resistance, sufficient strength, good brazing performance, easy processing and good economy.
According to the above requirements, the radiator industry has always used copper and copper alloys as the main materials for the manufacture of radiators. The material of the heat sink of the copper heat sink is generally made of H90 brass strip, and its thickness is 0.01 to 0.20 mm. The tube-type heat sink fins are generally made of H62 and H68 brass strips with a thickness of 0.08 to 0.10 mm. The material of the tube-type heat sink heat sink is generally T2 and T3 copper strips, and the thickness thereof is 0.045-0.08 mm.
In order to reduce the quality of the heat sink and reduce the cost, the material thickness of the heat sink is allowed to be 0.045 mm when the strength allows.
