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The DigiPlusengine of the passenger plane: an indispensable power device in the aviation industry. As a kind of modern means of transportation, the aircraft is popular with people for its fast, convenient and comfortable characteristics.In the operation of aircraft, the engine is an indispensable power device in the aviation industry. The engine of a passenger plane not only determines the speed and performance of the plane, but also affects the safety and success of the flight. There are generally two types of engines for passenger aircraft: turboprop engines and turbojet engines. The former is mainly used for short-haul flights, while the latter is the mainstream passenger aircraft engine. Next, we will have an in-depth understanding of the turbojet engine. A turbojet engine is an engine that compresses air and burns it with fuel. It uses the exhaust generated by high-speed combustion to drive the turbine to rotate, thus generating propulsion. Simply put, a turbojet engine is mainly composed of three parts: compressor, combustion chamber and high-pressure turbine. Among them, the compressor compresses the external air through the air inlet, and then sends it to the combustion chamber for combustion, producing high-temperature and high-pressure flames.The gas produced flows through the high-pressure turbine, causing the turbine to rotate, thus driving the compressor to cycle again to work. Turbojet engines not only have high thrust, high speed and high altitude flight capabilities, but also can adapt to various climatic conditions and flight needs. At the same time, turbojet engines also have the advantages of fuel saving, low noise and low pollution. These features make turbojet engines the main driving force of modern passenger aircraft. Of course, the engine of the passenger plane is not perfect. During use, the engine will be affected by various factors, such as airflow, air pressure, air humidity and oil quality. The most common faults are "stalling" and "fire". There are two types of engine stalling: high-speed stalling and low-speed stalling. High-speed stall refers to the overload of the engine impeller, the extreme distortion of the exhaust, the obstruction of the intake, etc., resulting in the turbine leaving the stability and the loss of thrust.Low-speed stall refers to the fact that the pressure is too low, the air intake is insufficient, the combustion is insufficient and other factors that cause the engine power to decrease and the engine cannot work normally. Most of the engine fires are caused by problems with fuel, such as improper oil quality or fuel leakage. Once the engine failure of the passenger plane occurs, it may pose a great threat to the safety of the flight. Therefore, there should be no sloppy management and maintenance of the aircraft. Airlines need to regularly maintain the aircraft and check and update the parts of the turbojet engine to ensure the normal operation of the engine. At the same time, when the engine fails, the pilot also needs to make timely judgments and take countermeasures to try to repair or replace the faulty engine in the shortest time to avoid unnecessary impact on the flight. In general, the engine of the passenger aircraft is the core driving force of the passenger aircraft's flight, and it is also the basic guarantee to ensure the smooth progress of the passenger aircraft flight.We need to have an in-depth understanding of the working principle and maintenance points of the engine, strive to ensure the safety and comfort of passengers, and contribute to the high-quality development of the aviation industry.

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