A short-amplitude cycloid is used to be the primary gear form for stator and the conjuration gear form using on rotor on the basis of the analysis and compare of all kinds of cycloids.

• 在对各种摆线分析比较的基础上,提出采用短幅内摆线作为原始齿形曲线用于定子骨线设计,其共轭曲线用于转子的双头单螺杆泵设计。