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Engine exhaust manifold (the function and global trade managementprinciple of engine exhaust manifold) With the continuous development of automobile technology, the performance and efficiency of the engine are also getting higher and higher. The exhaust system is a crucial part of the improvement of engine performance.Among them, the engine exhaust manifold is a very important part of the exhaust system. So, what exactly is this engine exhaust manifold? What is its function and principle? Next, let's introduce it systematically. I. Definition of engine exhaust manifold Engine exhaust manifold refers to a collection of some channels to send the exhaust gas discharged from the engine to the pipeline of the exhaust system. In other words, the engine exhaust manifold is a kind of thing that connects the engine and the exhaust pipe. It can improve the performance of the engine and reduce the output of exhaust gas by changing the direction and size of the airflow. II. The function of the engine exhaust manifold The function of the engine exhaust manifold is as follows: 1. Increase the efficiency of the engine. The design of the engine exhaust manifold can increase the speed of gas flow, so as to discharge the exhaust gas in a shorter time.This characteristic enables the engine to introduce oxygen faster, maintain the air-fuel ratio, and improve the efficiency of the combustion process. Therefore, it makes a great contribution to the performance improvement of the engine. Two. Optimize the sound of the engine. The design of the engine exhaust manifold can not only optimize the combustion process, but also optimize the noise in the exhaust process. Through the design of the manifold, the exhaust gas can be reflected back in the pipe, producing a beautiful singing sound, which is more deep and elegant. 3. The design of the engine exhaust manifold that improves horsepower and torque can better guide the emitted gas into the exhaust pipe, so that the engine can generate more horsepower and torque in a higher speed range, thus improving the performance of the whole car. Four. Reducing exhaust emissions Engine exhaust manifolds can also reduce exhaust gas production, thus reducing exhaust emissions.Because the oxygen is introduced into the combustion chamber for a shorter time, the engine can burn fuel in a shorter time and needs to discharge less exhaust gas. III. The principle of engine exhaust manifold The optimized design of the engine exhaust manifold is based on the flow principle of combustion gas and exhaust gas in the pipeline. The fluid will accelerate in a narrow area and slow down in a wider area. Therefore, by adjusting the width and length of the pipeline, a more reasonable manifold structure can be designed, which can improve the efficiency of the engine and increase horsepower and torque while emitting exhaust gas. IV. Conclusion As one of the most important parts of the exhaust system, the engine exhaust manifold can improve the efficiency and performance of the engine, optimize the exhaust noise, and reduce exhaust emissions through optimized design, thus having a significant impact on the overall performance of the car. Therefore, toFor automotive designers, it is very important to optimize the design of engine exhaust manifolds, which is also one of the important reasons for promoting the continuous development of automotive technology and engine technology.

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