C7.1 Engines for Caterpillar Built Machines Caterpillar


Cooling System

Usage:

525D 2L5

简介(冷却系统)

冷却系统包括以下部件:

  • 散热器

  • 水泵

  • 缸体

  • 机油冷却器

  • 缸盖

  • 水温调节器(节温器)

冷却液流程



图 1g01206083
冷却液流程
(1) 散热器
(2) 水泵
(3) 缸体
(4) 发动机机油冷却器
(5) 缸盖
(6) 水温调节器(节温器)和壳体
(7) 水温调节器(节温器)旁通水道

冷却液从散热器 (1) 的底部流到离心式水泵 (2)。 水泵 (2) 安装在正时齿轮箱前部。 水泵由一个齿轮驱动。 燃油喷油泵的齿轮驱动水泵齿轮。 水泵迫使冷却液经由正时齿轮箱中的水道流至缸体 (3) 的前部。

冷却液会流入缸体 (3) 的左侧中的一条水道中。 一些冷却液会流入缸体中。 一些冷却液会流过机油冷却器 (4) 的芯部。 然后,冷却液流入缸体 (3) 中。 冷却液会绕着气缸的外部流过,然后从缸体流入缸盖 (5) 中。

冷却液会向前流过缸盖 (5)。 然后,冷却液流入水温调节器 (6) 的壳体中。 如果水温调节器 (6) 关闭,冷却液直接经旁通水道 (7) 流到水泵进口侧。 如果水温调节器开启,旁通水道关闭,冷却液会流到散热器 (1) 的顶部。

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