Chinese fighter engines, does China have independently developed aircraft engines

The engines of Chinese fighters are not as bad as others say, and the basic conditions are still met. The overall performance of China's domestic Taihang engine is already advanced, but China is still importing Russian-made engines, because although the Taihang engine has good performance but poor stability, if the fighter flies for several hours in a row, it must stop to check whether the engine temperature and other aspects are normal. China has a shortage of mechanics in the field of engines.

There is already a gap between the best American engines and the best Russian engines, and the best American F119 turbofan engine technology seems to be ahead of Russia. ==Compared with the United States and Russia, China's engine technology and key technologies (but key technologies) are more than 20 years apart (but may be less than 30 years), which is about the level of the United States and Russia in the 80s.

Examples......China's J-11 series fighters use Russian-made engines, because Taihang seems to be unable to meet the needs of heavy third-generation fighters like J-11. However, the domestic Taihang can meet the needs ......of the J-10 series of medium-sized third-generation fighters = =

China's J-10 and J-11 are still Russian-made, and the corresponding U.S.-Russian fighters are products of the late seventies and early eighties, of course, China's self-made Taihang engines can also meet some of the requirements at that time, but China's continued imports of Russian-made engines show that domestic production is still insufficient in some aspects, and it should be said that China's level in the early eighties.

It is the biggest problem encountered in the development of advanced fighters in China, and now, the J-11B is hot on the Internet, which is China's most advanced third-generation fighter, but unfortunately the engine continues to use the Soviet-made engine, and the same is true for the J-10 series fighters, but there are also Chinese Taihang engines on the Internet that can replace Soviet-made engines and have been installed with some fighters, but some netizens speculate that Taihang engines still cannot surpass Soviet-made engines, and they cannot meet the development requirements of Chinese fighters to the greatest extent.

As for the J-20, Some netizens have used a frequency analyzer to analyze the engine frequency of J-20, J-10 and J-11, which is the sound of the plane flying.

Although the test conditions were not good, they still got certain results, saying that the J-20 uses Soviet-made engines, and the J-10 fighter tested is Taihang engines, indicating that the J-20 still lacks advanced domestic engines with breakthrough progress.

J-10 and J-11B do not have their own engines, all of which are purchased from Russia, including the J-20 J-31 that is now being studied, are all Maozi engines, and their own Taihang engines have a small thrust weight ratio and a short service life. It can be said that the Chinese engine is only equivalent to the level of the 80s in the United States and Russia.

Yes. The three major aero engine brands independently developed by China are: Kunlun, Qinling and Taihang.

The Kunlun engine is the first aero engine in China that has completed the whole process of self-design, trial production, test and flight test, and is the most advanced military turbojet engine with medium thrust in China. The military code name of the Kunlun engine is "Turbojet 14".

"Qinling" engine: China's first medium-thrust afterburner aviation turbofan engine "Qinling" is another major breakthrough in the field of aero engine manufacturing in China after the "Kunlun" engine. The engine is a twin-rotor turbofan engine, which has the characteristics of stable operation, reliable and rapid starting, good altitude and speed characteristics, low cruising fuel consumption rate and good maintenance.

The "Taihang" engine is China's first high-performance, high-thrust, afterburner turbofan engine with independent intellectual property rights, which ends the blank of domestic advanced turbofan engines. The Taihang engine was developed by China 606 Institute and is a third-generation domestic large military aviation turbofan engine. It adopts a large thrust ratio and a fully automatic digital control system, and the maximum thrust does not exceed 12,000 kg.

At present, it is mainly used to equip China's third-generation high-performance J-10 fighter.

Of course, all kinds of engines can be built, but the performance is far worse than the world's advanced. Aero engines are the best embodiment of a country's comprehensive national strength, and the world's top aero engine manufacturers are up to now, and the Soviet Union's aero engines are all dilapidated in comparison. Our country's comprehensive national strength is basically consistent with the current engine situation.

1. The development time of turbofan engine is short. In fact, in the 60s, China wanted to get a turbofan (WS6) engine, but the gap with the scientific and technological level of developed countries was too big, so it had to turn to the turbojet foundation, WS6 did not come out in the end, and the project was stopped in the 80s (of course, the process was also disturbed by many historical factors. And China's key investment project at that time was aerospace, not aviation).

It was not until the 90s that China had its first national turbofan engine WS9 (imitation of the British Spey engine), and it was not until 2003 that 100% localization was achieved.

2. Backward basic industry (backward compared with advanced countries in the West). China's production scale is the largest in the world, but the level of basic industry is only second-rate. Even if it is a second-rate high-precision machine tool in the world, 95% of it must be imported.

However, first-class products are generally restricted from being exported to China internationally. Similarly, France's own basic industry is only second-rate, but France is not restricted (the United States, Britain, Germany, and Japan have first-class basic industries). However, the basic industry can only rely on accumulation from generation to generation, through the next level of machine tools to process a higher level of machine tool parts, and then by a higher level of machine tools to process a higher level of machine tool parts.

If the development of basic industries lags behind in time, it will not be easy to catch up.

3. Backward in materials science (also relative to advanced countries in the West). The breakthrough in China's materials science was after 2000. Again, before the 80s, there was very little work done in this area, and in the 80s and 90s lay the foundation.

In the past, China's engine fan blades have been used for directional solidification of metal, and now single crystal is also used, but the production capacity and batch stability are not very good, which has a great impact on the life of the engine. The single crystal metal process has been used in the United States since the 70s, and now it is the third generation, and the fourth generation is about to be used.

Turbofan engine:

Turbofan engines are mainly used for aircraft with a speed greater than 800 kilometers and less than 1000 kilometers, such as Boeing B737 747 757 767, Airbus A300 310 320 330, domestic ARJ21 Yun 10, Brazil's EMB145 190, Russia's Tu154 Tu204 Il-76 96 and other aircraft, turbofan engine is currently the mainstream pin band engine of civil aircraft. Ichino uses a high bypass ratio (the ratio of the air flow of the inner duct to the outer duct) engine, which is more fuel-efficient than turbojet engines, and has higher propulsion efficiency and lower noise than turbojet engines at subsonic speeds. The disadvantage is that the engine has a large frontal area and large wind resistance, which is not suitable for hypersonic flight.

Turbojet engine:

Turbojet engines are mainly used in military aircraft, but they have also been used in civilian aircraft, such as the Olympus 593 turbojet engine used by Concorde; The typical application of turbojet engines is the Su-25 aircraft of the former Soviet Union, which uses the turbojet engine of the Zontan Meter Bureau of Rurika as the power, and once set the Mach speed record and the ceiling record of 37,250 meters. Compared with turbofan engines, good high-speed and high-altitude performance is a major feature of turbojet engines. The disadvantages are high noise, high fuel consumption and other problems, and at the same time, such engines are not suitable for low-speed flight, and it is easy to cause engine stalls in low-speed flight.

Xiao Zhang, a graduate student of Nanchang Hangkong University, was deeply touched by this. In his graduation years, he studied the current situation and future trends of China's aviation industry, especially in the field of aircraft engines made in China.

China's aviation industry is growing day by day, and more and more Chinese are beginning to pay attention to whether China can make its own aircraft engines. In fact, China's aviation industry is experiencing rapid development, with world-class technology and talent. Especially in the field of aircraft engines, China has made some important progress.

Chinese-made aero engines are already able to meet domestic military and civilian needs. For example, the WS-10 and WS-20 engines produced by the China Aero Engine Corporation are widely used in fighters and bombers such as the J-11 and H-6. In addition, China has successfully developed the engine for the C919 airliner, which is the engine of China's first mainstream passenger aircraft.

Although China is able to manufacture its own aircraft engines, there is still a certain gap with the world's advanced level. China's aviation industry still needs to continuously strengthen technological innovation and improve product quality and performance to meet the needs of domestic and foreign markets.

In general, the Chinese aviation industry has made significant progress and is able to create its own aircraft engines. In the future, AVIC will continue to strengthen technological innovation and product research and development, improve its independent innovation capability and market competitiveness, and contribute to the sustainable development of China's aviation industry. <>