From the animation look, the movement of the rotor is very complex.In fact, the movement of the rotor, can be broken down into two sports.
1.The rotor around the own axis rotation.
2.The rotor shaft around the axis of the stator turning.
3.The ratio of the speed is two for three
Red shell, speed 3ω. Gray rotor speed is 2ω.Working chamber volume of cyclical changes in.The rotation process is smooth.There is no reciprocating motion.Can achieve high speed.
Red shell still, as the…