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本文论述了湿式罗茨真空泵特点，多圆弧──渐开线转子型线参数，并对该型线参数进行分析，给出了不同Ｄｍ／Ａ值下的λ—ａ及γ—ａ值表，还绘制了函数λ＝ｆ１（ｚ，α）和γ＝ｆ２（ｚ，α）两个曲线图。应用这些数据表或曲线图，可进行湿式罗茨真空泵转子型线参数选择，也可以对圆弧──渐开线型罗茨增压真空泵转子型线、直排大气气冷罗茨真空泵转子型线以及罗茨鼓风机转子型线的参数进行选择。文中最后给出一湿式罗茨真空泵转子型线参数选择实例。
In this paper, the characteristics of a wet Roots vacuum pump, multi-arc-involute rotor profile parameters are discussed, and the parameters of the profile line are analyzed. The λ-a and γ-a values under different Dm / A values are given , But also plot the two curves λ = f1 (z, α) and γ = f2 (z, α). Application of these data tables or graphs can be wet Roots vacuum pump rotor line parameters selection, but also on the arc ─ ─ Involute Roots pressurized vacuum pump rotor profile, straight row atmospheric air-cooled Roots vacuum pump rotor type Line and Roots blower rotor profile parameters to choose from. The paper finally gives a wet Roots vacuum pump rotor profile parameter selection example.