贯流风机的叶片按一定的角度安装在叶轮上，可以从时间上平滑气流对涡舌的撞击，达到减噪的目的。本文通过对贯流式风机噪声的分析，从理论上讨论了叶片倾斜安装的贯流式风机，由于叶片倾斜所造成沿轴向的压力脉动相应差，抵消而达到减低气动噪声的效果。文中还给出了倾斜角与 The cross-flow fan blades installed on the impeller at a certain angle, you can smooth the air flow on the tongue of the impact, to achieve the purpose of noise reduction. In this paper, through the analysis of the cross-flow fan noise, we discuss in theory the cross-flow fan installed obliquely. The pressure pulsation in the axial direction caused by the slant of the blade is offset and canceled to reduce the aerodynamic noise. The article also gives the tilt angle and