In recent years, China's private rocket enterprises have risen one after another. Among them, Xinghe power is a very outstanding one. Its self-developed four-stage light launch vehicle, ceres-1, is the first private rocket model in China to achieve continuous successful launch. It has accurately put six commercial satellites of five customers into a 500 km solar synchronous orbit.
Recently, Xinghe power successfully completed the 2107 second ultra long range high model test of the four-stage rail control engine, and the test was a complete success
At present, Xinghe power is the only private company in China that has carried out engine high model test**
It is reported that the purpose of high model test run is to assess the structure and performance of high altitude nozzle in vacuum environment, verify the performance of engine vacuum ignition, steady-state operation, multiple ignition and shutdown, and is an important verification means to ensure the safety and reliability of engine during flight test.
The four-stage liquid orbit control engine in this test is independently developed by Xinghe power. It adopts the full 3D printing scheme for the first time in China. It has the characteristics of low cost, high performance, light weight and easy processing
During the test, the four-stage rail control engine experienced the long-range and low mixture ratio combined deflection under rated conditions, high mixture ratio combined deflection under low conditions, pulse program assessment and other processes under 2000 Miao control. The engine worked normally in the whole process, the flame was bright during the test, and the product structure was intact after the test.
According to the actual test data, the combustion efficiency of the engine has reached more than 95%, the performance meets the design requirements, and the reliability has been further verified and enhanced, reaching the domestic advanced level**
Long range high model test of four stage rail controlled engine
After the successful launch of the ceres-1 remote-2 rocket, Xinghe power added more than 10 reliability growth tests to further improve the reliability of the rocket.
In particular, a series of reliability growth tests were added to improve the reliability of the four-stage orbit and attitude control power system, including four ground single machine tests of orbit and attitude control engine, one ultra long range high model test of orbit and attitude control engine, one vibration test of orbit and attitude control power identification magnitude, and two system wide hot tests.
Four stage rail control engine