轴流风机，用途非常广泛，就是与风叶的轴同方向的气流，如电风扇，空调外机风扇就是轴流方式运行风机。之所以称为"轴流式"，是因为气体平行于风机轴流动。轴流式风机通常用在流量要求较高而压力要求较低的场合。轴流式风机固定位置并使空气移动。轴流风机主要由风机叶轮和机壳组成，结构简单但是数据要求非常高。
Axial fan, which is widely used, is the airflow in the same direction as the axis of the blade, such as the electric fan, the fan of the external air conditioner is the fan running in the axial flow mode. The reason why it is called "axial flow" is that the gas flows parallel to the axis of the fan. Axial flow fans are usually used in situations where flow requirements are high and pressure requirements are low. The axial-flow fan fixes position and moves air. Axial fan is mainly composed of impeller and casing of fan. Its structure is simple, but its data requirement is very high.