1概述DF8B型机车柴油机冷却系统由高温、低温两个部分组成。高温水系统用于冷却气缸套、气缸盖和增压器;低温水系统用于冷却增压器压气机出来的增压空气。如果冷却水系统发生故障(如循环不畅、漏水、烧水等),将导致柴油机主要部件(如气缸盖、活塞、气缸套、气门、喷油器等)过热 1 Overview DF8B locomotive diesel engine cooling system consists of high temperature, low temperature two parts. High-temperature water system is used to cool the cylinder liner, cylinder head and supercharger; low-temperature water system is used to cool turbocharger compressor out of the pressurized air. If the cooling water system fails (such as poor circulation, leakage, water, etc.), will lead to the main diesel engine components (such as cylinder head, piston, cylinder liner, valve, injector, etc.) overheating