At present, the cylinder block of gasoline engine is divided into cast iron and cast aluminum. In diesel engines, cast iron cylinder blocks account for the vast majority. In recent years, with the rapid development of the automobile industry, sedans have rapidly entered the life of ordinary people, and at the same time, the fuel-saving performance of vehicles has gradually been paid attention to. Reducing the weight of the engine can save fuel, and using a cast aluminum block can reduce the weight of the engine.
From the point of view of use, the advantage of cast aluminum cylinder block is light weight, which can save fuel by reducing weight. In an engine of the same displacement, the use of an aluminum block engine can reduce the weight of about 20 kilograms. For every 10% reduction in the car's own weight, the fuel consumption can be reduced by 6% to 8%. According to newer data, the weight of foreign cars has been reduced by 20% to 26% compared with the past. For example, Fox adopts all-aluminum alloy material, which not only reduces the weight of the body, but also enhances the heat dissipation effect of the engine, improves the working efficiency of the engine, and has a longer life. From the perspective of fuel saving, the advantages of cast aluminum engines in fuel saving have attracted much attention.
In addition to the difference in weight, there are many differences between cast iron cylinder blocks and cast aluminum cylinder blocks in the production process. The cast iron production line occupies a large area, pollutes the environment, and the processing technology is complicated; while the production characteristics of the cast aluminum cylinder block are just the opposite. From the perspective of market competition, the cast aluminum cylinder block has certain advantages.
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