Midea Group has patented a counter-rotating motor for high-speed blenders. The motor includes a stator with outer and inner windings, an inverter for synchronous excitation, an inner rotor rotating in ...

Electric motors use rotating electromagnetic fields to spin a rotor. Coils of wire in the stationary outer portion of the motor, called the stator, produce these electromagnetic fields.

Counter-rotating wind turbines (CRWTs) represent an innovative paradigm in wind energy conversion, employing a dual rotor mechanism in which two coaxial rotors spin in opposite directions.