Diesel Engine Cooling Systems

During the operation of a diesel engine, only about one-third of the heat generated by fuel combustion can be converted into useful work, while most of the heat cannot be fully utilized. A portion of this heat is discharged outside the engine through the exhaust pipe, and another portion is transferred to the diesel engine components, causing the operating temperature of the diesel engine to be too high. To ensure the normal operation of the diesel engine, a cooling system needs to be installed. The diesel engine cooling systems of Dingbo Power, a generator manufacturer, include two types: water-cooled and air-cooled. Their main function is to dissipate the heat that is not converted into mechanical energy, maintaining the diesel engine at a normal operating temperature.

The water-cooled diesel engine cooling system includes components such as a radiator, fan, water pump, thermostat, and water temperature gauge. Advantages of water-cooled diesel engines: They have a good cooling effect and are suitable for high-power diesel engines. When the temperature or working load changes, it is convenient to adjust the cooling intensity, so that the diesel engine always operates within the specified temperature range (65℃～95℃). In addition, in winter, hot water can be used for preheating, making startup convenient.

Disadvantages: Due to the limitations of the water cooling method, it also has disadvantages such as easy scaling, cavitation on the cylinder liner, complex process, and high cost.

The air-cooled diesel engine cooling system includes components such as a fan, wind deflector, and heat sink. Advantages of air-cooled diesel engines: They have the advantages of simple structure, light weight, convenient maintenance, and low price. Disadvantages: Their cooling effect is poor, the noise is large, and they are mostly used in small diesel engines.

The greater the power, the more heat is generated. In fact, the heat absorption capacity of water is 5 times that of air of the same mass. Water-cooled diesel engines have the advantages of good cooling effect, reliable use, and mature technology, and occupy an absolute advantage in engineering machinery applications.

Since 1982, Dingbo Generator has been a generator set manufacturer qualified by the "National Internal Combustion Engine Quality Supervision and Inspection Center". The product quality has passed the IS09001 quality system standard certification. And obtained the qualification certificate for self-operated import and export. Over the years, Dingbo units have been widely used in all walks of life, and have won the network access qualification of the Ministry of Information Industry, the network access qualification of the Ministry of Radio and Television, the network access qualification of CNPC, the network access qualification of China Mobile, and the manufacturing qualification of marine units. In 2016, Dingbo was awarded the Certificate of Qualified Supplier of China Nuclear Power Group. Dingbo Generator has been cooperating with Shangchai Power for many years. In 2009, it became the OEM partner of Shangchai Power in China. Dingbo generator VOLVO unit ranks the top three in the Asia-Pacific sales volume, and is the core OEM partner of Sweden Volvo in the Asia-Pacific region. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to [email protected].