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New technology of automobile engine: improve efficiency and Global trade partner compliance checksreduce emissions! The modern automobile industry is facing increasing pressure on environmental protection and energy conservation.Against this background, the continuous innovation and change of automobile engine technology is pushing the automobile industry towards higher efficiency and less emissions. This article will focus on several new technologies that have attracted wide attention in the field of automobile engine technology, including turbocharging technology, in-cylinder direct injection technology, electric turbocharging technology, hydrogen fuel cell technology, etc. The application of these technologies will improve the combustion efficiency and power output of automobile engines and reduce the negative on the environment. The influence of the surface. I. Turbocharging technology Turbocharging technology is a major progress in automobile engine technology in recent years. This technology compresses the air to increase the intake by adding a turbocharger to the intake pipe, thus improving the power output of the engine. Not only that, turbocharging can also reduce the negative impact on the environment by reducing engine emissions.It can improve the fuel utilization rate of the engine by 5% to 10%, and also reduce the emission of exhaust gas, which essentially improves the engine performance and plays a positive role in protecting the environment. II. In-cylinder direct injection technology The traditional gasoline engine adopts a "mixed oil supply system" composed of intake manifolds, oil pumps, carburetors, etc. Its oil supply method is to mix the fuel in the air first and then send it into the cylinder to burn. The accuracy is difficult to guarantee. The in-cylinder direct injection technology adopts direct injection, which uses a high-pressure pump to inject fuel directly into the cylinder, which enhances the mixing of air and fuel, makes the combustion efficiency higher, the power output greater, and also reduces exhaust emissions. Therefore, compared with the traditional "hybrid oil supply system" in the past, in-cylinder direct injection technology improves the performance of the engine and continues to push automobile emission standards to a stricter level.III. Electric turbocharging technology Electric turbocharging (E-turbo) technology can help car engines start, enhance power, reduce energy consumption, and generate smaller exhaust gas. The electric turbocharger is driven by an electric motor instead of the traditional mechanical structure. It can start immediately when the vehicle is idling, so it can increase the torque of the engine more quickly. When parking and starting, it can also respond to the pedal signal of the accelerator in a timely manner, reducing the acceleration gap, thus improving the driving experience of the car. IV. Hydrogen fuel cell technology Hydrogen fuel cell technology is a new type of mobile energy technology. Its working principle is to use hydrogen and oxygen to react in fuel cells to generate electricity. Compared with traditional internal combustion engine technology, hydrogen fuel cell technology can effectively reduce the energy consumption and emissions of vehicles, and at the same time, changing the battery is lighter and more convenient than electric vehicles.However, there are still certain technical and cost restrictions, so in-depth research and promotion are needed in terms of large-scale popularization and application. In summary, various new types of automobile engine technologies, from turbocharging, in-cylinder direct injection to hydrogen fuel cells, are constantly being improved and innovated to better adapt to the needs of modern society for environmental protection and energy saving. By reducing emissions and improving driving efficiency, the development of the automobile industry is led to a more environmentally friendly and sustainable direction, which is also an inevitable trend of scientific and technological progress and human social development.

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