Hello everyone, welcome to the front line of science and technology in this issue, I am the editor.
With the vigorous development of the aerospace industry, rocket engines are undoubtedly the most important part of this industry, because only by solving the problems of thrust and efficiency of rocket engines can we better achieve the grand goals of manned lunar landing and deep space exploration.
In China's aerospace industry, a liquid-fuel engine is currently used, and in this type of engine, the current thrust level is relatively average, but recently, China's test news about rocket engines has successfully attracted the attention of the majority of netizens.
China's self-developed 130-ton pump swing liquid oxygen kerosene engine has recently successfully completed the parallel ignition test of four engines, and its combined thrust has exceeded the 500-ton mark, which marks that China has reached an unprecedented height in the field of high-thrust liquid rocket engine technology.
This test not only created the highest thrust in the history of domestic hydraulic power, but also attracted attention because of its complex system design and technical difficulty, which naturally aroused extensive discussion and admiration from the public and professionals.
It is understood that this liquid oxygen kerosene engine uses a technology called "pump swing", which can make the swing of the engine easier to control, and can also reduce the mechanical structure of the engine, provide more working space for the engine, and let its performance be better played.
However, to achieve such a technology, the requirements for the rocking device are very high, especially in terms of high temperature and high pressure resistance, which puts forward high requirements for materials and structures, which has not been applied in the 120-ton engine, but has achieved a breakthrough in the 130-ton engine, which also shows that China has made important progress in this regard.
To achieve such a technology, is not the ultimate goal, because in the later practical application, it is likely that four machines need to be operated in parallel, and this is more demanding for technical personnel, because this needs to synchronize the operation of the four engines, and the thrust provided also needs to be synchronized, the difficulty of such an operation can be imagined, but Chinese technicians have successfully made such an attempt.
Through this test, it can be said that China has taken an important step in the technical research of liquid fuel engines, and has also laid a solid foundation for the development of the mainland's future aerospace industry.
However, some friends may have such a question, since we can already realize the liquid fuel engine with four engines in parallel, why not directly develop a single engine with greater thrust?
Imagine that if you want to make a rocket jump higher, you need to equip it with a more powerful "heart" - the engine. The size of this "heart" is usually proportional to its strength, and if you want to have more strength, you need to be stronger.
But here's a trick, it's not just a matter of enlarging the heart, because the work inside is very delicate and complex, like not only making an elephant dance, but also dancing gracefully and effortlessly. Moreover, it does not cost a small amount of money to build such a big "heart", but requires advanced technology and a lot of silver.
Therefore, it is really not easy and remarkable for China to get the four big guys to work together and produce more than 500 tons of thrust this time, no wonder everyone feels quite excited.
Therefore, the current approach is actually very wise, on the one hand, through continuous research and breakthroughs, to improve the thrust of the existing engine, on the other hand, through parallel operation, to achieve greater thrust output, this approach can be said to be a two-pronged approach, but also can better balance the difficulty of technology and cost pressure.
In the world, there have been some rockets that directly use a large number of parallel engines, such as the American "Falcon-9" heavy rocket, which directly connects nine "Merlin" engines with a thrust of 69 tons in parallel, and obtains a very amazing thrust, such a design also provides a good reference for China's aerospace industry.
Through this test, it can be said that China is very close to the international advanced level, and in the future, we can increase the number and thrust of parallel engines through continuous efforts, lay a more solid foundation for the mainland's aerospace industry, and better realize the development and launch of heavy rockets such as the "Long March 9."
We believe that through our unremitting efforts, China's aerospace industry will surely achieve more brilliant achievements, and we will also be able to contribute China's strength to mankind's aerospace dream.
Do you have any other thoughts on this?