It can be seen that every major revolutionary progress in the field of aviation is closely related to the technological breakthrough and progress of aero-engine. With the change of modern war style, aviation weapon equipment has become the key equipment to seize the air power and influence the war process. As the basis for aircraft to achieve tactical performance and combat effectiveness, aviation engine has also become an important factor in determining the outcome of war.
The structure of aero engine is complex, and it should be used repeatedly for a long time, as well as high requirements for reliability and durability. Therefore, aero-engine is recognized as an industrial product with high technical level, strict threshold of core technology and complex overall structure in the world. Compared with the typical high-tech product, the aero-engine structure is more complex and the working load of components is more severe, so it has high requirements for high temperature and corrosion resistance, and tungsten alloy and molybdenum alloy are ideal materials. As a result of these differences, it is universally acknowledged that aero-engine technology is more complex and difficult to develop than that of space rocket engine.
At present, there are at least ten countries in the world that can independently develop space launch vehicles and launch satellites into the sky. Apart from the United States, Russia, the European Union and China, Japan, India, Israel and Iran can also achieve this. However, the only countries that can independently develop advanced aero engines are the United States, Russia, Britain, France, and China and so on.
While vigorously promoting the rapid development of aero-turbine engine technology, powerful aviation countries are actively exploring new concepts and new energy aero-dynamic technologies such as scramjet, pulse detonation, ultra-micro, solar energy and fuel cell, and have made significant progress.
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