It was learned from the dealers that after the user installed a watering device or a larger water tank for the water tank, the temperature of the roads in the vehicle was maintained at about 85°C, and climbing was not carried out. After horizontal comparison with the size of radiators used by peers such as Liberation Company and Liuzhou Automobile Co., Ltd., it was determined that the large-horsepower engine of this plant had a problem of small heat dissipation capacity. This is the main reason for the high water temperature of 6DL high-powered engines under high-temperature weather. Radiator Improvements The key to improving the solution is to increase the heat sink's ability to dissipate heat. Based on the above investigation and analysis and comparison of the liberation company and the Liuzhou water tank, according to the actual production situation put forward three kinds of programs: (1) in the original copper water tank based on the height of the water tank directly to achieve the purpose of directly increasing the radiator cooling area; ( 2) Thicken the water tank western traffic technology on the basis of the original tank, add a row of heat pipes to directly increase the heat dissipation area of ​​the tank; compare Liberation Company and Liuzhou Auto Company, change the water tank to aluminum water tank, and increase the heat dissipation of the tank through structural adjustment area. The details are as follows: Increase the size of the radiator core to increase the heat dissipation area of ​​the tank. Solution 1 Key points: Increase the height of the radiator core and increase the total heat dissipation area by 17%. The advantage of this solution is that directly increasing the windward area and the heat dissipation area of ​​the radiator will reduce the wind resistance, which is beneficial to reducing the power loss of the engine fan and increasing the heat dissipation.

Under the same condition as the original radiator, the radiator can reduce the water temperature by about 5°C, and the heat dissipation effect is better. However, considering that the cabs of each model of the plant are installed at a relatively low level, the increased height of the radiator of 130 mm will cause the radiator to lengthen. After testing, when the vehicle is heavily loaded and vibrated, the bottom of the radiator is only 300 mm from the ground clearance, which will result in low vehicle passability. Therefore, the solution is not the preferred solution.

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