提出了对称圆弧修正齿型涡旋压缩机排气孔的选取原则及计算方法 ,通过计算得到了圆形和腰形排气孔动态排气面积的变化规律及其与修正角的关系 .考虑排气孔在实际排气过程中的节流作用 ,用模型对排气过程进行了计算机模拟 ,得到了排气腔实际压力的变化规律 .在深入分析实际排气过程特点的基础上 ,得到了圆形排气孔与腰形排气孔的排气损失、二者的对比情况与修正角的关系 The principles and calculation methods of the exhaust holes of the symmetrical circular arc correction tooth-type scroll compressor are proposed. The variation rules of the dynamic exhaust area of ​​the circular and the waist-shaped exhaust holes and their relations with the correction angle are obtained by calculation Exhaust hole in the actual process of the role of exhaust throttle, with the model of the exhaust process was simulated, the actual pressure of the exhaust chamber changes in the law. In-depth analysis of the actual exhaust process based on the characteristics of the obtained Exhaust Losses of Circular Vents and Oval-shaped Vents, Correlation between the Two and Correction Angles