Improving the passability of the entire vehicle does not involve changes to the layout of the entire vehicle


Increase the heat dissipation area of ​​the radiator by thickening the core size of the radiator. The second point: Change the radiator from the original three rows of tubes to four rows of tubes, reduce the height of the radiator by 70mm, and increase the radiator area by 21%. While reducing the height of the radiator, the heat dissipation area can be significantly increased, which is conducive to improving the passability of the entire vehicle, and does not involve the change of the layout of the entire vehicle. Under the same conditions of use, the heat dissipation capacity of the radiator is only increased by 7.5% compared to the original radiator, but the wind resistance is increased by 45% to 60%, and the heat dissipation effect is not significantly improved. At the same time, the radiator of this scheme has a substantial increase in manufacturing cost due to structural changes, and the economy is also poor, so scheme 2 is not feasible. Change the original copper radiator to aluminum radiator. Key points: The overall size of the radiator remains unchanged, and the original copper radiator is changed to an aluminum radiator. The heat dissipation core is thickened (by) and appropriately widened. The spacing of the heat dissipation fins achieves the effect of increasing the heat dissipation area without increasing the wind resistance. The overall dimensions of the radiator can be kept unchanged without involving changes in the layout of the entire vehicle. Only through material changes and internal structure improvements, the heat dissipation area of ​​the radiator is significantly increased, the heat dissipation capacity is increased, and the problem of high water temperature is solved. At the same time, because the price of aluminum is lower than that of copper, the weight is reduced by 25% to 40%. Therefore, this solution can reduce manufacturing costs and improve economy.

Through in-depth discussion, demonstration and comparison of the feasibility and economics of each scheme, * finally determined the improvement scheme of changing the original copper radiator to aluminum radiator. After the radiator sample trial production and test plan are determined, according to the heat dissipation performance requirements of Xichai engine and comparing the size of the heat dissipation area of ​​the radiator of Jiefang Company and Liuqi, combined with the combination of not changing the components associated with the water tank as much as possible, reducing the impact on the company Based on the principle of management and production influence, several water tanks (1301020-L01) with high-horsepower engines with different horsepower sections were designed, and prototypes were trial-produced, and wind tunnel laboratory tests were carried out on the prototypes.

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