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China's first titanium alloy large nozzle thrust chamber was successfully tested, which greatly reduced the weight of the rocket engine

via:凤凰网     time:2022/5/8 18:03:09     readed:158

IT Home May 8 news, China Aerospace Science and Technology Group announced that on April 17, the Sixth Academy of Aerospace Science and Technology Group 7103 Factory China's new generation of manned carrier rocket secondary pump after swing liquid oxygen kerosene engine for testing, the test started according to the predetermined procedure, the engine worked for 10 seconds, and the test was a complete success.

According to reports, the engine of this test adopts the first titanium alloy large nozzle thrust chamber newly developed in China, which greatly reduces the weight of the engine, and the engine assembly adopts an inverted assembly scheme, and the test successfully verifies the feasibility of the titanium alloy nozzle scheme.

On the basis of the existing engine thrust chamber, the new generation of manned carrier rocket two-stage pump pendulum liquid oxygen kerosene engine carries out the development of titanium alloy nozzles, realizes the effective connection between the existing thrust chamber copper and steel material system and the titanium-titanium structure, further reduces the weight of the engine, improves the engine thrust-to-mass ratio, and improves the effective carrying capacity of the rocket.

IT House learned that China is still studying the 25-ton expansion cycle hydrogen and oxygen engine, which is currently the world's largest thrust expansion cycle hydrogen and oxygen upper class engine, thrust is 3 times that of China's active upper class hydrogen and oxygen engine, than the punch and other performance indicators significantly improved, reaching the world's advanced level, is China's aerospace power to the aerospace power of the landmark product.

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