论文部分内容阅读
通过航空喷气技术系统公司和其它部门的比较研究表明,作为上面级应用,泵注式液体可存贮推进剂推力系统比其他系统有有效载荷运载能力大的优点,除此之外,还具有可靠性高和经济非常合算等。无论这种推进系统是一个自激级或是使用整体级推进方案,其核心问题是需要空间发动机提供推进动力去达到预定的轨道。航空喷气技术系统公司已经设计出了这种发动机,并命名为Transtar,且现在已处在研制的最后阶段,发动机部件的工艺技术是从航空喷气公司为NASA生产的轨道机动系统(OMS)发动机衍生而来的,到目前为止,这种轨道机动系统发动机已经在所有的航天飞机上进行了成功的飞行;并且也来自于空军火箭推进实验室研制的工艺技术程序。涡轮泵和双组元推进剂燃气发生器,即Transtar发动机的动力装置,自1980年以来由航空喷气公司根据其独立研制计划进行研制。发动机的部件研制已大部分完成,发动机系统的推力试验正在进行,估计鉴定试验能在1990年初完成。本报告评述了Transtar发动机的设计,发动机的性能和工作特性,以及发动机的研制状况。
A comparative study by ABI Systems and others shows that, as a top-level application, the pump-in liquid storable propellant thrust system has the advantage of having a greater payload carrying capacity than other systems and in addition to being reliable High sex and economy is very cost-effective. Regardless of whether this propulsion system is a self-excited or a monolithic propulsion scheme, its core issue is the need for a space engine to provide propulsion power to reach the intended orbit. Aircraft Jet Systems has designed this engine, named Transtar, and is now in the final stages of development, with process technology for engine components being derived from the Aeronautical Jet Engine Manufacturing (NASA) Orbital Maneuvering System (OMS) engine So far, the orbital maneuvering system engine has been successfully flown on all space shuttles; it also comes from the process technology program developed by the Air Force’s rocket propulsion laboratory. Turbine pumps and two-component propellant gas generators, the Transtar engine power units, have been developed by Air Jet since 1980 on the basis of their independent development plans. Most of the engine parts have been developed. The thrust test of the engine system is underway. It is estimated that the qualification test can be completed in early 1990. This report reviews Transtar engine design, engine performance and operating characteristics, and engine development.