The "Lingyun" Liquid Rocket Engine Subsystem Successfully Completes Long-Duration Hot-Fire Testing.
Release Time:
2020-03-09
On July 14, 2018, the auxiliary subsystem of Jiuzhou Cloud Arrow's "Lingyun" liquid rocket engine successfully completed a 200-second long-duration test evaluation.
2018 On July 14, the auxiliary system of Jiuzhou Yunjian's "Lingyun" liquid rocket engine successfully completed a 200-second long-duration test evaluation.
The "Lingyun" liquid rocket engine delivers a ground thrust of 10 tons and utilizes liquid oxygen-methane propellant. This test marked several significant firsts for this type of liquid rocket engine: it was the first time the engine's subsystem-level tests were successfully completed; the first successful joint ignition test using a self-developed methane/oxygen torch igniter integrated with the gas generator; the first full-scale, 100% operational long-duration test conducted on the 10-ton liquid oxygen-methane engine's gas generator under actual conditions; and the first test to evaluate the gas generator's performance under varying-thrust conditions with deep thrust modulation.
More importantly, this test successfully achieved the five intended objectives: first, it evaluated the operational reliability of the gas generator, a key component of the subsystem; second, it verified the compatibility between the torch-type ignition system and the gas generator; third, it validated the operational reliability of several domestically developed cryogenic valves; fourth, it assessed the timing sequence of the engine's auxiliary systems during operation; and fifth, it confirmed the long-term operational reliability of the engine's auxiliary systems.
The auxiliary system of the liquid oxygen-methane engine can also be referred to as the turbine propellant supply system. The auxiliary system tested this time primarily includes a gas generator independently designed and developed, a torch igniter, a main liquid methane supply valve, a main liquid oxygen supply valve, cryogenic check valves, and specialized test equipment, among other components.
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Jiuzhou Yunjian Space Technology Co., Ltd. is a national high-tech enterprise integrating liquid rocket engine design and development, assembly and testing, as well as comprehensive end-to-end flight support services.
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