Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizen Glory_Brave, work is a sideline clue delivery! CTOnews.com, September 6, according to the Weibo news of the China Aerospace Science and Technology Corporation, on September 5, the first hot test run of the 25-ton closed expansion cycle hydrogen and oxygen engine of the sixth Academy of the China Aerospace Science and Technology Corporation was a complete success, which was the largest closed expansion cycle engine test run in the world, marking a major breakthrough in the development of the closed expansion cycle hydrogen and oxygen engine, one of the key technologies of the heavy launch vehicle.

According to the Beijing Aerospace Power Research Institute, the thrust of the 25-ton hydrogen-oxygen engine is three times that of the upper-class hydrogen-oxygen engine in service in China, and its specific impulse and other performance indicators have significantly improved, reaching the advanced level in the world. It is a landmark product for China to move from a space power to a space power.

This type of engine adopts the scheme of closed expansion circulation system, which has the advantages of high performance and high reliability, and has the ability of multiple starting and large-scale variable thrust adjustment. It is the optimal power for the upper stage of large and heavy launch vehicles and space vehicles. It can be used for complex space missions such as manned lunar landing, manned fire landing and deep space exploration.

On December 10 and 17, 2021, the thrust chamber extrusion test of this type of engine was carried out by Beijing Aerospace Power Research Institute in Institute 101, and the test was a complete success. A total of 2 thermal tests were carried out, with 60% and 100% rated working conditions respectively. The test parameters are consistent with the preset values, the correctness and feasibility of the design scheme of the thrust chamber are verified, and the performance parameters such as temperature rise and combustion efficiency of the cooling jacket are obtained. after the test, the product is in good condition.

In addition, the previous work of the engine has been completed, such as engine system design and simulation, torch igniter test verification, thrust chamber scale test verification and hydrogen turbine pump medium test verification.

CTOnews.com learned that the Aerospace Science and Technology Group also disclosed that China is currently developing a new generation of manned and heavy carrier rockets, which will be used for manned lunar landings, Mars exploration, Jupiter exploration, asteroid exploration and other missions in the future.

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