A small cold air refrigerator based on the reverse Brayton cycle is developed,and a new type of foil journal bearing is used in the turbo expander which is the key component of cold air refrigerator.

• 设计了一台小型透平 逆布雷顿循环空气制冷机 ,并将一种新型的箔片径向气体轴承应用在该制冷机系统的透平膨胀机上。