The driving and driven screw rotors are the most important components. The rotorprofile and thermodynamic performance determine the pumping performance of pump.
干式真空泵中最重要的部件就是阴、阳螺杆转子，转子型线及其热力学性能决定了泵的抽气性能。
3
The implement scheme of the automatic modeling is described in detail, and the generation principles of the rotorprofile and the scanning helix are analyzed deeply.