在自由分子流压强范围内进行了轴流式叶片透平机的试验和理论研究。用单级转子的研究机械所得的实验结果,来验证其理论预见。这类机械每级可达到的压缩比,在采用合理的级数时,可适用于超高真空方面。对于室温下的空气来说,如旋转件的应力合理,每级压缩比(转子列加定于列)约为25 Experiments and theoretical studies of axial-flow vane turbine were carried out within the range of free molecular pressure. The experimental results of a single-stage rotor research machine are used to verify the theoretical predictions. The achievable compression ratio at each stage of this type of machine is applicable to ultra-high vacuum when using reasonable series. For air at room temperature, such as the rotation of the stress is reasonable, each stage of the compression ratio (rotor column is added to the column) is about 25