本文给出了一种斜母线(母线一般不在与转轴垂直平面上)的直纹面,用作离心压气机叶轮后掠叶片的中弧面。在此基础上形成叶片的压力面、吸力面两个直纹面。使用微型计算机绘制出按上述方法形成的叶轮图形,图形表明造型方法是正确的,用计算机进行图形绘制可以成为压气机叶轮设计的有力工具。 In this paper, a ruled surface of a slanting busbar (the busbar is generally not in the vertical plane with the rotating shaft) is given and used as the camber surface of the centrifugal compressor wheel for swept blades. On this basis, the blade pressure surface, suction surface two ruled surface. The use of a microcomputer to draw the impeller pattern formed by the above method, the pattern shows the modeling method is correct, the computer graphics can be a powerful tool for the design of the compressor impeller.