中文摘要：

在涡旋压缩机型线设计研究中，提出了涡旋型线的暂渐开与暂啮合理论，阐述了暂渐开中心、暂渐开区域、暂渐开角、暂啮合区域及暂啮合角等几何概念，研究了多种涡旋型线的特征几何特性和暂啮合区域所对应的暂啮合角之间的耦合机理，借以作为涡旋压缩机型线性能优劣及加工难易的判定理论。研究结果表明：正奇多边形渐开线型线的暂啮合角等于其特征几何外角的一半；正偶多边形渐开线涡旋型线的暂啮合角恰好等于其特征几何外角；随着多边形边数的增加，暂啮合区域所对应的暂啮合角从180°逐步减小，当特征几何边数趋于无穷多边形时，涡旋型线的暂啮合区域所对应的暂啮合角将趋近于0°通过涡旋型线几何特性和耦合机理的研究，证明了无穷多边形渐开线所构成的涡旋型线压缩机振动最小，运行最平稳，能效比最高。提出的涡旋型线耦合机理，为涡旋压缩机型线的研究拓宽了思路。

英文摘要：

In the design and study of scroll profiles,a new describing theory based on temporal involutes and temporal meshing was presented. Center of temporal involutes, zone of temporal involutes, angle of temporal involutes, zone of temporal action and angle of temporal action（ATA） were expatiated. The performance characteristics of the various involutes of scroll profiles were studied. Based on analyzing the geometry characteristics, the meshing mechanism between zone of temporal action and its correspondent angle was discovered. The ATA of odd regular polygon involutes is half of the characteristic geometry exterior angle, and that of even regular polygon involutes is just equal to the exterior angle. Furthermore, the corresponding ATA is reducing increasingly with the edge number of regular polygon increasing. When the edge number of the regular polygon tends towards infinite, the corresponding ATA tends to become zero. The theoretical diagnosis of a new scroll model is given and it concludes that infinite edges scroll profiles have the top performance theoretically and practically. It widens the method of studying scroll profiles by adopting the geometry characteristics and the meshin~ mechanism.