In 28 years, a hundred 490 cattle engines participated in hundreds of "stars" change mission

Not long ago, with the instructions of "shutdown instructions and normal satellite conditions", the 490 -bull engine developed by China Aerospace Technology Group Co., Ltd. 6d 6D satellite -changing flight mission was successfully completed. This is also the only rail control engine in my country's high -track satellite -the 100th satellite (detector) flight missions participated by 490 cattle engines.

100 "Stars", 100 engines, as the only rail control engine model in my country's high -orbital satellite, 490 cattle engines provide rail transformation power for Beidou, Fengyun, high score, Chang'e and other multi -type tasks. Single machine.

Since the first applied satellite -changing mission in Dongfanghong III's communication satellite in 1994, in 28 years, 490 Niu engine products have been upgraded to the second -generation product that increased by 10 seconds than Chong, and further developed third -generation products. Its product upgrade process and the frequency of implementation of the track change task have witnessed the rapid development of my country's aerospace industry, and the 490 -bull engine also leads the development direction of my country's space -control engine.

From nothing to flying sky by month

In the early 1980s, my country's space tasks continued to expand, and the demand for the engineering engines that had high performance, multi -group Yuanyuan far -reaching locations that could start and worked for a long time were even more urgent. At that time, my country was still blank in this field, and only a few countries in the world had mastered the development technology of farm engine.

Is it independently developed or buying mature products? The remarks of the old aerospace expert Ren Xinmin have opened the road of self -reliance on the technology of developing 490 cattle engines in my country. "We have accumulated more than 20 years of experience in developing a liquid rocket engine and a capable scientific and technological team. If we import the engine ourselves and import from abroad, then we will always rely on others. At the same time I can't develop this kind of engine, I believe everyone will be able to develop it. "

High -performance and light quality, high -performance and long life are the two most critical contradictions in the development of engine development. From pre -research to realizing first flight, 801 has worked hard for 12 years, and overcome a series of key technologies, fill a number of domestic gaps, and lead 7 new technologies to develop. Strong technical support.

In November 2007, the 490 -bull engine positioned Chang'e -1 satellite at a circular orbit of about 200 kilometers high and a cycle of the moon. It wrote a brilliance on the third milestone of China's aerospace industry.

According to statistics, from 1994 to 2007, the 490 -cow engine lasted for 13 years to perform 10 satellite -changing tasks; from 2007 to 2015, 40 satellite -changing tasks were performed in 8 years; The annual mission of 50 satellites has been performed.

Pursue excellence and continuous innovation

Over the years, the development of 490 cattle engine products has adhered to the concept of mature generation, flight generation, and research generation, and has continuously pursued excellence. The 801 developed team carried out system upgrades in combination with multi -disciplinary and cross -field.

At the beginning of the second -generation 490 -Bull engine, the development team went to Beijing, Xi'an, Ningxia, Kunming and other places to investigate in order to solve the problem of continuous ablation of materials. In order to ensure the progress of the development, high -intensity test ride is commonplace. The ignition test car often takes one day and one night. Liu Changguo, a technical person in charge, led several young people to take turns waiting at the test site for 24 hours.

On June 1, 2012, the completion of the last track of the Middle Star 2A satellite marks the success of the first flight of the second -generation 490 ox engine, which also means that the life of the satellite will be extended for more than a year, and the direct economic benefits will exceed 100 million yuan.

"Only innovation can continue to develop", 801, as the only rail control engine major in my country, always takes "must catch up and exceed the world's advanced level" as the goal of struggle. While using the rail control engine, it is constantly trying new materials, new processes, and new structure design to strive to achieve a "transformer" of similar foreign product technology. In continuous exploration and innovation, the 801 further developed the third -generation 铼/铱 material 490 cow engine with a vacuum ratio of 325 seconds. The performance reached the world -class level, laying a solid foundation for my country's satellite platform capabilities leapfrogging.

Since August 2020, the product guarantee work of the group company has been further advanced, and the property insurance system of the Sixth Academy has been refined. As a pilot stand -alone, 490 Niu engine is the first to promote the construction of a stand -alone product guarantee system, carry out technical analysis and control of 490 ox engines, set up product guarantee teams, formulate product guarantee plans, implement three -year capacity improvement measures, steadily promote the management of weak links, Wuling up the successful measures, gradually move the quality control of the product, accurately implement advance prevention in advance, and add guarantee to "continuous success and successful development".

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