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China's Space Program News Thread
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Successful test of some sort of air breathing kerosene fuelled spaceplane engine prototype from Tsinghua University.
Seems to be an air augmented rocket of some sort with an inlet cone, boosted by a solid fuel first stage. However it also said test successfully gathered data on how vacuum environment affects the engine's various performance parameters. So maybe it's got both air breathing and rocket mode.
I think you misread the article. The article repeated words 真实 (real life), not 真空 (vacuum). I agree, it is just a scramjet.Here's a better video of the test, maybe it's "just" a scramjet. The vacuum operation part throws me off. The test of the engine happened at 30km up, the vehicle was recovered by parachute.
据悉，此次飞行任务获得了真实飞行条件下，工作环境参数变化对发动机燃烧室运行特性的影响，充分检验了发动机的真实工作特性，并验证现有技术路线的可行性，为新技术走向工程化和产品化，提供了重要的试验数据，积累真实的飞行经验。
在尽可能短的时间内聚合最大能量，实现从地面试验到真实飞行试验的重大跨跃，推动实际工程应用的进程，也充分得益于科技成果转移转化的有效尝试。
I think the newly tested engine from Qinghua University is the outcome of this research program
This is the company 清航空天. The articles mentioned their effort on 自增压燃烧技术 (Self Pressure Gained Combustion) which is mentioned in the launch report. A well known PGC engine type is RDE (Rotary Detonation Engine). This kind of engine is basically trying to remove the turbine compressor in a typical turbojet engine. As of today, any turbine based variable cycle engine faces the challenge of power gap between turbo mode and RAM mode. This new engine is to replace turbojet and fill that gap.
We have discussed this kind of engine, Oblique Detonation Engine (ODE) program in China in this forum. This Qing Hua engine may be another effort in the category, and it is the first known real life experiment.
This is the company 清航空天. The articles mentioned their effort on 自增压燃烧技术 (Self Pressure Gained Combustion) which is mentioned in the launch report. A well known PGC engine type is RDE (Rotary Detonation Engine). This kind of engine is basically trying to remove the turbine compressor in a typical turbojet engine. As of today, any turbine based variable cycle engine faces the challenge of power gap between turbo mode and RAM mode. This new engine is to replace turbojet and fill that gap.
We have discussed this kind of engine, Oblique Detonation Engine (ODE) program in China in this forum. This Qing Hua engine may be another effort in the category, and it is the first known real life experiment.
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If my understanding is right (see post 10066 above), it is an air breathing engine that covers speed range from turbojet to hypersonic/scramjet, not a rocket engine.
But detonation engine is the company's main work, also if it was not a detonation engine the report shouldn't have mentioned Self PGC.It looks just like a scramjet to me. I think if it was a pulse detonation engine you wouldn't need a rocket booster to get it up to speed.
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