Rotary lobe pumps are positive displacement pumps. They work through the counter-rotating movement of two rotors. These rotors do not touch each other and are each connected to a separate shaft. The pump’s gearbox synchronizes the rotation of the rotors, and the gears are also located on the shafts. On the suction side of the pump, the rotation of the rotor creates a vacuum that sucks the pumped medium into the pump. The medium is transported along the pump housing to the pressure side. There, the volume decreases and pressure is generated.