一、概述按工作原理气马达可分为容积式与透平式两大类。透平式气马达之优点在于;气马达重量轻、体积小;若透平式气马达为冲击式,则增减喷嘴数目可以产生不同大小的轴功率,这在使用中可以大大减少气马达的数量;透平式气马达转速高,这样可以使气马达的轴与工作机械的轴直接连接,例如矿井局部通风用的高转速通风机或局部排水用的高转速水泵可与这种透平式气马达的轴直接连接。透平式气马达之缺点在于:轴功率太小的气马达,效率低; First, an overview According to the working principle of gas motor can be divided into volume and turbine two categories. Turbine air motor has the advantages of: air motor light weight, small size; if the turbine air motor for the impact of the increase or decrease the number of nozzles can produce different sizes of shaft power, which can greatly reduce the use of gas motor Turbine gas motor speed is high, so that the gas motor shaft can be connected directly to the shaft of the working machine, such as high-speed ventilator for local ventilation of the mine or local high-speed water pump for drainage can be used with this turbine The air motor shaft is directly connected. Turbine air motor drawback is that: the shaft power is too small air motor, low efficiency;