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engine technology upgrade,UEFA TV improve fuel economy With the development of society and the popularization of transportation, energy saving and environmental protection have become the goal pursued all over the world. As the power source of transportation, the fuel economy of automobile engines has become one of the important indicators of energy saving and environmental protection. Therefore, upgrading engine technology and improving fuel economy have become the development trend of the automobile industry. The engine is the core component of the whole automobile system. In order to improve fuel economy, the design and manufacture of the engineIt must start from many aspects, such as improving thermal efficiency, reducing internal friction, increasing the cylinder compression ratio and reducing the structural weight. Next, we will introduce them in detail separately. The first is to improve thermal efficiency. The thermal efficiency of the engine refers to the ratio of the power generated by the engine to the thermal energy released by the fuel. Improving thermal efficiency can reduce fuel consumption, thus improving fuel economy. To improve thermal efficiency, a number of technical means can be used, such as heating fuel, using the residual heat of flue gas to heat the intake, optimizing the composite opening and reducing the power consumption of the pump. The second is to reduce the internal friction. Internal friction is one of the main sources of energy loss in engine operation. To reduce the internal friction, you can install low-friction accessories, hydraulic sliding support and pneumatic support, use low-viscosity oil, etc. At present, major automobile manufacturers are taking reducing internal friction as a necessary means to improve fuel economy.In addition, increasing the cylinder compression ratio is also an effective way to improve fuel economy. The improvement of the cylinder compression ratio can increase the temperature and pressure during fuel combustion, thus improving thermal efficiency and reducing fuel consumption. However, it should be noted that the cylinder compression ratio should not be too large, otherwise it will cause safety problems such as mechanical damage or cylinder burst. Finally, reducing the structural weight is also one of the important means to improve fuel economy. Lightweight design can reduce body weight, reduce air resistance and improve engine efficiency. At present, major automobile manufacturers are actively promoting lightweight design, adopting a variety of materials and technical means, such as aluminum alloy, high-strength steel, carbon fiber composite materials, etc. In general, upgrading engine technology and improving fuel economy can not only reduce pollution emissions and energy consumption, but also improve the safety and comfort of cars. At the same time, the economic benefits brought are also obvious.For this reason, in the development of the automobile manufacturing industry, these technical means should be continuously promoted to improve the overall level of the automobile industry. At the same time, it is also necessary for governments at all levels to introduce policy guidance and norms, so as to work together to promote the development of low-carbon economy and environmental protection.

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