A rotary electric machine includes: a first rotor, a stator, and a second rotor that are coaxially disposed in stated order from radially centermost to radially outermost and spaced apart from one another, the stator including a plurality of pole pieces and a plurality of windings in a circumferential direction. The first rotor and the second rotor each include permanent magnets or electromagnets, the plurality of windings generate electromagnetic torque in the first rotor and the second rotor, the electromagnetic torque is magnetically transferred to the second rotor by rotation of the first rotor, or magnetically transferred to the first rotor by rotation of the second rotor, and in one of the first rotor and the second rotor, torque that is magnetically transferred from an other of the first rotor and the second rotor is superimposed on the electromagnetic torque.

The present invention is a permanent magnet external-rotating brushless motor and an induction motor. It is multi-stabilized in order to fully utilize the characteristics of a magnetic field of 360 degrees, and is multi-functionalized by a wire group selection switch, and multi-stator multi-function The different stator-to-stator line sets are connected to the output power generation or the power supply drive to select different combinations of functions, such as a programmable logic controller module or a 32-bit 32-channel multi-channel servo steering control module, and the execution of the array module is written. The modes are grouped into action groups, and then the computer is used to assist the driver in making decisions by analyzing the artificial road and the road type with artificial intelligence decision trees.

The present invention is a permanent magnet external-rotating brushless motor and an induction motor. It is multi-stabilized in order to fully utilize the characteristics of a magnetic field of 360 degrees, and is multi-functionalized by a wire group selection switch, and multi-stator multi-function The different stator-to-stator line sets are connected to the output power generation or the power supply drive to select different combinations of functions, such as a programmable logic controller module or a 32-bit 32-channel multi-channel servo steering control module, and the execution of the array module is written. The modes are grouped into action groups, and then the computer is used to assist the driver in making decisions by analyzing the artificial road and the road type with artificial intelligence decision trees.

A servo includes a housing, a motor, a printed circuit board (PCB) and a servo output shaft that are accommodated within the housing. The motor is electrically connected to the PCB. The housing has a lateral side defining a cutout. The servo further includes a gear transmission mechanism and an output arm. The gear transmission mechanism is used to connect a motor output shaft of the motor to the servo output shaft. The output arm has an end that is arranged within the housing at a substantially central position and connected to the servo output shaft, and another end extending out of the housing to connect with an external component.

A servo includes a housing, a motor, a printed circuit board (PCB) and a servo output shaft that are accommodated within the housing. The motor is electrically connected to the PCB. The housing has a lateral side defining a cutout. The servo further includes a gear transmission mechanism and an output arm. The gear transmission mechanism is used to connect a motor output shaft of the motor to the servo output shaft. The output arm has an end that is arranged within the housing at a substantially central position and connected to the servo output shaft, and another end extending out of the housing to connect with an external component.

An apparatus includes a rotatable common shaft configured to be rotatable about a longitudinal shaft axis extending along the rotatable common shaft. Rotatable electric machines are arranged on the rotatable common shaft. This is done in such a way that disk assemblies of the rotatable electric machines and the rotatable common shaft are concurrently rotatable. The rotatable electric machines are arranged on the rotatable common shaft in such a way that the net cogging force, which is generated by the rotatable electric machines, and which is imparted to the rotatable common shaft, is reduced.

An apparatus includes a rotatable common shaft configured to be rotatable about a longitudinal shaft axis extending along the rotatable common shaft. Rotatable electric machines are arranged on the rotatable common shaft. This is done in such a way that disk assemblies of the rotatable electric machines and the rotatable common shaft are concurrently rotatable. The rotatable electric machines are arranged on the rotatable common shaft in such a way that the net cogging force, which is generated by the rotatable electric machines, and which is imparted to the rotatable common shaft, is reduced.

A power system and method for the adaptive power control of a drilling rig. While operating the internal combustion engine in its efficient operating range, unrequired mechanical power is converted to electrical power for storage, or use via the electrical bus on the rig. When the internal combustion engine is not required to provide mechanical or electrical power it is deactivated, and then reactivatedelectrical storage on the system in the meantime providing electrical power to the bus as required. The power supply and management system could be retroactively fitted to an existing drilling rig by the incorporation of a generator and electrical storage device thereon. The system and method of the present invention allow for the optimized use of combustion-based power on a drilling rig while minimizing environmental emissions from the idle running of the at least one internal combustion engine.

Hydrokinetic fluid turbines utilize a flowing body of liquid to translate the kinetic energy of the fluid into electric power or other useful energy. The available kinetic energy is proportional to the squared fluid velocity in an open channel with a fixed cross-sectional area. The proposed twin turbine system coupled with a cycloidal magnetic gear exploits the hydrokinetic energy existing in open-channels.

There is provided a hybrid electric aircraft propulsion system and method for operating same. The method comprises providing, to a first electric motor and a second electric motor, alternating current (AC) electric power from a generator, the generator receiving rotational power from a thermal engine, providing, to the first electric motor and the second electric motor, AC electric power from at least one motor inverter, the at least one motor inverter configured to convert DC electric power from a DC power source into AC electric power, and selectively driving the first and second electric motors from the generator, the at least one motor inverter, or a combination thereof, wherein the first electric motor drives a first rotating propulsor and the second electric motor drives a second rotating propulsor.