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Engine air intake is DigiPlus fair valuea very important part of the automobile engine system. Because the function of the air intake is to let fresh air enter the engine for combustion and discharge the exhaust gas after combustion. The effectiveness of this component directly affects the performance, operation and fuel economy of the engine. This article will elaborate on the engine air intake in four aspects: function, form, characteristics and development direction. I. FunctionThe function of the engine air intake is to introduce fresh air from the outside into the engine through the intake channel, mix it with the corresponding fuel through mechanical or chemical reactions, and then form a mixture under the action of the fuel injector. Finally, it is ignited by the igniter for combustion, and the heat energy released pushes the car to drive. At the same time, it also needs to burn The latter exhaust gas is discharged from the outside of the engine to achieve the purpose of purifying harmful substances. II. The air intake port of the form engine is generally divided into two types: natural intake and turbocharging. The naturally aspirated air intake port uses the speed of the car when the car is running and the compression of the air for gas inhalation, thus forming a device for air entering the engine, which realizes the seamless conversion of the car from low speed to high speed. The turbocharged air intake increases the pressure of the engine intake channel through mechanical devices, injects compressed air into the engine, and can improve the power output of the engine when the engine is running.III. Features 1 Strong sensitivity: The engine air intake can automatically adjust the size of the air intake gate according to the driver's speed requirements at that time, so that the power can be coordinated. 2 Dustproof and foreign objects: A good air intake can also play a role in preventing dust and foreign matter from entering the engine, thus protecting and maintaining the car. 3 Improve engine efficiency: By optimizing the shape of the air intake and increasing the diameter of the air intake, it can also greatly improve the power and fuel economy of the car, while improving the output efficiency of the engine. IV. Development direction With the continuous development and innovation of the automobile industry, as well as the increasing requirements for environmental protection and reducing fuel consumption, the development of the air intake, which is one of the core components of the engine, is also constantly improving and innovating. The specific development direction mainly includes: 1 better air treatment technology: for example, the use of filters, oxidation reactors and other technologies to purify the air.2 Application of new materials: apply higher strength and more wear-resistant materials to improve durability and stability. 3 Innovative air intake design: For example, some manufacturers have adopted a variable air intake system and used advanced technologies such as aerodynamics, hydraulic and electronic computer technology to realize the intelligent adjustment of the air intake size. Conclusion: In summary, the engine air intake is a very important part of the automobile engine system. The main function of the air intake is to let fresh air enter the engine for combustion, and at the same time discharge the exhaust gas after combustion. The effectiveness of this component directly affects the performance, operation and fuel economy of the engine. In the future, it is not only necessary to further optimize the design and form of the air intake, but also some global planning to achieve the goal of efficient and energy-saving fuel and reducing automobile exhaust emissions.

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