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以汽车空调用变基圆渐开线涡旋压缩机为研究对象,采用圆弧加直线的修正方法对涡旋齿起始端进行了修正,推导了变基圆渐开线齿端修正部分的面积计算公式,进行了涡旋几何修正参数及齿端面积的实例计算,分析并通过实验验证了修正角对涡旋齿端修正面积及内压缩比的影响规律。研究结果表明,修正角的取值直接影响到涡旋压缩机的内压缩比大小。在确定的渐开线参数情况下,修正角的取值存在着一个合理的区间,其接近下限值时,能够提高涡旋压缩机的内压缩比,改善欠压缩过程,从而提高涡旋压缩机的等熵效率。
Taking the involute involute scroll compressor of automobile air conditioner as the research object, the starting end of the scroll tooth was corrected by the method of circular arc plus straight line, and the area of the modified part of the involute involute tooth end was deduced The calculation formulas of vortex geometry correction parameters and tooth end area were calculated and analyzed. The influence of correction angle on the correction area of vortex tooth end and internal compression ratio was verified by experiments. The results show that the value of correction angle directly affects the size of scroll compressor internal compression ratio. In the case of the established involute parameters, there is a reasonable range for the correction angle value. When it approaches the lower limit, the internal compression ratio of the scroll compressor can be increased, the under-compression process can be improved, and the compression of the scroll can be increased Isentropic efficiency of the machine.