On the base of analyzing the gas axletree of expansion machine in theory, the system of gas source are mended and designed, it makes the throttle can realize the auto-control of press and flux .

• 在对某型膨胀机气体轴承理论分析的基础上,对其气源系统进行了改进设计,使节流器实现压力流量的自动控制。