引言液氧液氢发动机的饱和液氢涡轮泵的工作计划在马歇尔空间飞行中心进行,该计划用J-2发动机和S-IVB级部件验证“零贮箱NPSH”的适用性。这项计划的第一阶段是J-2氢泵试验,第二阶段为J-2发动机试验。本文提出了同零贮箱NPSH”的定义,说明了该工作模型需要的试验方式,并发表了验证其适用性的试验计划。 INTRODUCTION The work plan for a liquid hydrogen turbo-pump for a liquid oxygen-liquid hydrogen engine is scheduled at the Marshall Space Flight Center. The program validates the suitability of “Zero Sink NPSH” with J-2 engines and S-IVB components. The first phase of the project is the J-2 hydrogen pump test, the second phase is the J-2 engine test. This paper presents the definition of “same tank zero NPSH”, explains the test methods required by the working model, and publishes a test plan to verify its suitability.