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Diesel engine is International vendor verificationa kind of diesel-fueled internal combustion engine. Its strong power and reliability are one of its most important features. In the machinery industry, diesel engines are widely used in heavy machinery, ships, generator sets, automobiles and other fields. I. Characteristics of diesel engine 1. Powerful motivation. Compared with gasoline engines, diesel engines have a higher compression ratio, and there is more compressed air in the cylinder in each cycle. After combustion, it produces more energy, so its output power is greater. Two. High reliability. The diesel engine has a simple structure and no high-speed rotating parts, so it is more durable.At the same time, the spontaneous combustion nature of diesel fuel also ensures that it has a higher start-up rate and is more suitable for working in harsh environments. 3. Economical. Compared with gasoline engines, diesel engines have lower fuel consumption and more power per liter of oil, so the operating cost is lower. II. Application of diesel engine 1. Ship. Diesel engines are widely used in ships and can provide enough power to meet the operation and operational needs of ships. Diesel engines can not only drive the power system of ships, but also other systems, such as generator sets, air conditioning systems, water pumps, cranes, etc. Two. Heavy machinery. Diesel engines are widely used in the fields of heavy machinery such as engineering machinery and mining machinery. High-power and high-torque diesel engines can meet the needs of various heavy-load operations. 3. Generator set. Diesel generator sets are indispensable emergency backup power supplies, especially in places where there is no power grid.The diesel engine can work with the generator set to provide stable power support. Four. Car. Diesel engines are suitable for long-distance trucks, buses and off-road vehicles, etc. Compared with gasoline engines, diesel engines are more fuel efficient and more suitable for long-term driving. III. Classification of diesel engines 1. According to the cooling method: water-cooled and air-cooled. Two. According to the air intake method: natural air intake, turbocharger (charger or turbocharger). 3. According to the combustion mode: indirect type and direct type. IV. Maintenance of diesel engines 1. Pay attention to the replacement of oil and filter cartridges. The durability and reliability of diesel engines largely depend on the quality of maintenance. Frequent replacement of oil, diesel filters and air filters can ensure that the engine is always in the best working condition. Two. Check and clean the radiator regularly.Poor heat dissipation of the cooler will cause the engine to overheat or even burn oil. Therefore, regular inspection and cleaning of radiators is an important part of engine maintenance. 3. Maintain the normal engine water temperature. If the engine water temperature is too low, the viscosity of the oil will decrease and the extreme pressure will be poor, resulting in increased engine wear; if the engine water temperature is too high, it will lead to oil deterioration, resulting in bearing wear and engine oil burning. Therefore, it is very important to maintain a normal engine water temperature. Conclusion: As a widely used internal combustion engine, diesel engine has the characteristics of strong power and good reliability. It is widely used in ships, heavy machinery, generator sets, automobiles and other fields, and will continue to be an infrastructure in the development of industrialization in the future. Therefore, it is very important to maintain the performance and durability of diesel engines.

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