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*Jet Engine Principle (Introduction to the Operating Principle of Jet Engine) Jet LaunchAircraft is OKX downloadthe most common power device in the modern aviation industry. Due to its high efficiency, stability and good adaptability, jet engines have become the main power devices for modern aircraft. The principle of the jet engine is to compress the intake air and add fuel to the combustion, and then discharge the generated high-speed airflow through the nozzle to generate a reaction force in the jet to push the aircraft forward. This article will introduce the operating principle and composition structure of jet engines. I. Operating principle of jet engine The operating principle of jet engine can be divided into four steps: air intake, compression, combustion and injection. 1. Air intake is the process of introducing air into the engine. When the aircraft is in flight, the intake channel will introduce a large amount of air into the engine through the airflow from the top of the wing. The air in the intake duct is filtered and cooled, and then compressed by the compressor.Two. Compression is the process of compressing the intake air. Through compression, the density and pressure of the intake air increase, which provides the necessary conditions for the combustion of the engine. In jet engines, centrifugal compressors and axial compressors are usually used to compress the intake air. 3. Combustion combustion is the process of mixing the compressed intake air with fuel and ignition combustion. The fuel is injected into the combustion chamber by the fuel injector, extinguished under the action of ignition sparks, and produces high-temperature and high-pressure gas during the combustion process. Four. Jet jet is the discharge of high-temperature and high-pressure gas generated by combustion through the nozzle, forming a high-speed airflow, which generates a reaction force to push the aircraft forward. In jet engines, a variety of injection methods are usually used, such as turbochargers, turbojet thrusters and turbofan engines. II. JetThe structure of the engine The structure of the jet engine includes the intake system, the pressure system, the combustion system and the jet system. 1. Air intake system The air intake system is used to introduce air into the engine, which is mainly composed of an air intake channel and an air intake filter. The intake channel introduces a large amount of air into the engine through the airflow at the top of the wing, while filtering impurities, reducing the intake temperature and increasing the oxygen content. Two. Compression system The compression system is used to compress the intake air, which is mainly composed of a centrifugal compressor and an axial flow compressor. After the intake air is compressed, the density and pressure increase, which provides the necessary conditions for combustion. 3. Combustion system The combustion system is used to mix and burn compressed air and fuel to produce high-temperature and high-pressure gas. The combustion system includes combustion chamber, fuel injector, igniter, etc., among which the combustion chamber is an important part of burning the intake air and fuel.Four. Jet system The jet system is used to discharge the high-temperature and high-pressure gas generated by combustion through the nozzle to form a high-speed airflow, which pushes the engine to turn or the aircraft forward. The jet system includes a turbocharger, a propulsion version, a jet nozzle and other components. Conclusion Jet engines are the most common power device in the modern aviation industry. Its high efficiency, stability and good adaptability make it the main power device for modern aircraft. The principle of the jet engine is to compress the intake air and add fuel to the combustion, and then discharge the generated high-speed airflow through the nozzle to generate a reaction force in the jet to push the aircraft forward. The structure of a jet engine includes an intake system, a pressure system, a combustion system and a jet system. In the future, with the continuous development and innovation of science and technology, jet engines will continue to become an important part of the aviation industry.

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