Read more Transfer Pump (Rotary Pump & Screw Pump & Centrifugal Pump & Diagram Pump & Emulsifier/Homogenizer Pump) Rotor pump is also names rotary lobe pump, three-lobe pump, sole pump, etc. When the 2 simultltaneous reverse rotaing rotors (with 2-4 gears) revolve, it produces suction force at the inlet (vacuum), which intakes the material delivered.