汽车发动机水泵的作用是什么

2025-03-16 18:25:45
推荐回答(1个)
回答1:

汽车发动机水泵的作用是驱动冷却液消散发动机的热量,保证其在 冷却系统 中循环,保持水在散热器中循环,带走热量,保证发动机不太热。泵的工作原理是发动机通过皮带轮带动泵的轴承和叶轮转动,泵内的冷却液由叶轮带动一起转动。在离心力的作用下,被甩到泵壳边缘,同时产生一定的压力,然后从出水口或水管流出。

汽车发动机的气缸内有许多用于冷却水循环的水道,这些水道通过水管与放置在汽车前部的散热器相连,形成一个大的水循环系统。水泵安装在发动机的上出水口,由风扇皮带驱动,将发动机气缸水道中的热水抽出,将冷水泵入。

水泵旁边还有一个恒温器。汽车刚启动时,没有打开,这样冷却水只会在发动机内循环,不会通过水箱。当发动机温度达到95度以上时,就会开启,发动机内的热水会被泵入水箱,车内的冷空气会吹过水箱带走热量。

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