对全流量补燃循环发动机系统的研究与分析

论述了全流量补燃循环氢氧发动机的工作过程,并给出了基于这种循环方式的发动机的系统简图。根据现有的氢氧发动机的研制现状,针对全流量补燃发动机进行了系统参数的平衡计算。从这种循环方式的工作机理出发,结合参数计算得到的结果对这种循环方式的发动机的先进性进行了讨论。认为这种循环方式的氢氧发动机可以具有更高的可靠性,以及能够获得更高的性能,能够满足人们现在对高可靠性,低成本,可重复使用的液体火箭发动机的要求。

Research and Analysis of the Full-Flow Staged Combustion Cycle Rocket

The working process of the H_2/O_2 engine full-flow staged combustion cycle is discussed,and the system sketch of the rocket engine based on this cycle is presented.Based on the development status of the H_2/O_2 rocket engine, the system parameter balance calculations were executed.The calculated results show that the full-flow staged combustion cycle yields a lower temperature of the pilot burner and the turbine working gas compared to the fuel-rich staged combustion cycle engine with the same power output.The advantages of the full-flow staged cycle are discussed.It is believed that reliability and performance of the engine with this kind of cycle are superior and the full-flow cycle engine can satisfy the high reliability,low cost and reusable requirement.