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Engine new technology: improve fuel efficiency and UEFA live freeenvironmental protection characteristics With the increasing energy demand and the intensification of environmental problems, engine technology has been constantly innovating and developing. More and more automobile manufacturers have begun to invest a large amount of research and development budget to pursue more efficient and environmentally friendly engine technology. In this case, new engine technology was born. The first new technology is variable valve technology. By adjusting the valveOpening and closing time and degree, variable valve technology can reduce engine load, improve engine efficiency, and thus improve fuel efficiency. At the same time, variable valves can also help the engine better adapt to different operating conditions, such as low-speed driving or high-speed high-load driving. This technology has been widely used in modern engines, such as Ford's EcoBoost series engine and Mazda's SkyActiv engine series. The second new technology is direct injection technology. The traditional engine ignites by injecting a mixture of fuel and air, while direct injection technology directly injects fuel into the combustion chamber, which improves the combustion efficiency of fuel. This technology can improve fuel efficiency by reducing the waste of non-fuel. At the same time, direct injection technology can also reduce exhaust emissions, because the combustion is more complete and produces less harmful exhaust gas.Hyundai automakers widely adopt this technology, such as Honda's Earth Dreams direct injection engine series and GM's EcoTec direct injection engine series. The third new technology is hybrid technology. Hybrid engines combine fuel engines and electric motor systems to use the power of the electric motor and the power of the fuel engine to drive the vehicle. This technology combines the advantages of improving fuel efficiency and reducing emissions, and can charge the motor by recovering the kinetic energy generated during braking. Toyota's Prius hybrid model is the most popular hybrid car on the market at present. The fourth new technology is the start-up technology. This technology can automatically turn off the engine when parking, saving fuel consumption and reducing pollutant emissions. When the vehicle needs to be re-driven, the technology can quickly restart the engine.Compared with other energy-saving technologies, this technology is more effective in urban roads. When the vehicle stops, it can reduce engine idling and exhaust emissions while saving fuel. This technology has been adopted by some car manufacturers, such as Ford's Auto-Start-Stop system and BMW's EfficientDynamics system. The fifth new technology is turbocharging technology. The turbocharger can compress the air to a higher pressure and then deliver it to the combustion chamber, making the fuel easier to burn and improving fuel efficiency. Another advantage of turbocharging technology is that it can improve the performance of the engine, because compressed air can enter the combustion chamber more and produce more energy. This technology has been widely used in performance models and diesel engines.The higher the total energy efficiency, the better the fuel efficiency and environmental protection characteristics. At the same time, it can also reduce the negative impact of environmental pollution and climate change for us human beings. These new engine technologies break through the limitations of traditional engines, enabling vehicles to work more effectively in cities and highways. Therefore, they are an important means for the automobile industry to respond to environmental needs. It is hoped that more new technologies will be adopted for automobile engines in the future to play a greater role in making our environment safer and more sustainable.

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