As the most important part of the engine, cooling system of the engine will directly influence performance of the engine. When the engine works, the temperature of parts touching with burning gas in high temperature rises due to being heated. If parts don’t be cooled down properly, internal-combustion engine will overheat, the inflatable coefficient will decline, combustion will be abnormal, the engine oil will deteriorate and be burnt out, the friction and wear of parts will intensifies, power consumption of diesel engine will increases, the surface of parts will be burnt out, which will bring overall deterioration of dynamic property, economical efficiency, reliability and durability about internal-combustion engine, and cause diesel engine not to work. For this reason, this paper aims at the design requirements of cooling system about diesel engine in 135 series, analyzes cooling system of diesel engine in 6135, referring to cooling system structure of current diesel engine.
Keywords: diesel engine, cooling system, cooling fluid