The Root's Blower / Vacuum pump consists 2 triple lobe of rotors and rotate in synchronous and opposite direction by two timing gear.
The two rotors are assembled with casing two side plates and keep small gaps and no contact rotation between the casing and two rotors, and two side plates, when motor output to drive rotor and start working.
The two rotors rotate in synchronous and opposite and continue to turn and suction a quantity of gas between the rotating rotors, casing and side plates continue rotation carry the trapped volume around the rotor and casing out the discharge port.
The Processes as Follows:
1. Air enter
2. Enclose by rotor and casing
3. Air discharge