card.weibo.com
Translated by google
2020-09-28
As we all know, an aero engine is the "heart" of an aircraft. Its performance directly determines the aircraft's speed, altitude, range, maneuverability, reliability and payload. It is also known as the "jewel in the crown" of modern industry. Now the development of aero engines affects the development of aircraft and is also a sign of the development of the Air Force. The most important indicator of the quality of a national air force fighter is the thrust-to-weight ratio of the engine, which directly determines the performance of the fighter.
For a long time, the engine is the flaw of the Chinese fighter. Although our country has begun to develop engines in the last century, our country's engine manufacturing skills are so immature that it has been imported from other countries. Later, with the unremitting efforts of Chinese scientific researchers, my country finally made great progress in the field of aviation development, and developed several domestic engines.
The domestically developed engines developed in China include turbofan-10, turbofan-13, and turbofan-18, and turbofan-20 and turbofan-15 engines are even being developed. All these indicate that my country has made great progress in engine research and is reducing the gap with the world's first-class level. In the future, my country's domestically produced fighters may no longer have to rely on imported engines from abroad.
For example, my country’s domestically produced Taihang engines can be used as important tasks. my country’s turbofan-10 engines have several improved models, including turbofan-10B engines and turbofan-10C (also known as turbofan-10X). ), turbofan-10H and other engines. These engines have begun to be used on the J-10, J-11, J-15, J-16, and J-20 fighters.
The engine used in the early stage of my country’s J-20 is the Russian AL-31F engine. This engine was born in the 1980s. In the world, both performance and quality (service life) are only at the second-class level, which severely limits the J-20’s Maneuverability. With the progress of domestically-made engines in my country, my country's J-20 fighters have also begun to be replaced with domestic-made Taihang improved engines.
It is reported that my country’s J-20 is replaced by a turbofan-10C (also known as turbofan-10X). This engine is a transitional model of the fourth-generation turbofan engine, Turbofan-15. The feature of this engine is to use With a serrated design nozzle, stealth function, and thrust of 14.5 tons, the engine can basically meet the needs of the F-20. However, there is still a certain gap between this engine and the F119-PW-100 vector engine of the American F22 fighter plane and the Russian "Product-30" vector engine.
If my country's J-20 wants to completely solve the engine problem, it still needs to look at the turbofan-15 engine. The thrust of my country's turbofan-15 engine will reach 18 tons, the thrust-to-weight ratio will reach 10.85, and more importantly its nozzle With vector performance. At that time, the J-20 after the turbofan-15 engine will be more powerful and will not lose the performance of the American F-22 fighter.
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