Various embodiments of the teachings herein include an electric motor comprising: a stator with a plurality of field conductors; a cooling plate; a printed circuit board arranged on the cooling plate; a plurality of power electronic components for controlling the field conductors, the power electronic components arranged on the printed circuit board; and a groove-like recess in the cooling plate. The cooling plate in is mechanical contact with the field conductors via current conductors electrically connected to the field conductors. A busbar is arranged in the groove-like recess and thereby electrically insulated from the cooling plate and at least partially covered by the printed circuit board. The printed circuit board is in electrical contact with the busbar.

The present disclosure discloses a modular five-degree-of-freedom magnetic levitation compressor rotor system and a control method, comprising a magnetically levitated rotor spindle and a drive motor arranged at a middle part of the magnetically levitated rotor spindle, a centrifugal impeller and a cooling impeller are respectively mounted at both ends of the magnetically levitated rotor spindle, an axial magnetic bearing assembly and a radial magnetic bearing assembly are sequentially arranged on the magnetically levitated rotor spindle between the drive motor and the centrifugal impeller, as well as on the magnetically levitated rotor spindle between the drive motor and the cooling impeller, the axial magnetic bearing assembly is a thrustless plate structure with a direct magnetic field coupling; the radial magnetic bearing assembly adopts a modular structure with segmented magnetic poles.

Motors, pumps, generators, fluid-handling devices, and related systems or methods may include a motor assembly comprising a motor housing and a motor comprising a rotor and a stator contained in the motor housing. The motor further comprises an alternating current medium voltage synchronous motor.

An electric machine, in particular for use within the powertrain of a hybrid or fully electric motor vehicle, having a stator and a rotor, said stator and rotor being received in an engine housing The engine housing has at least one A-bearing shield and at least one B-bearing shield for supporting the rotor relative to the engine housing, wherein the A-bearing shield and/or the B-bearing shield has/have a two-part design, in each case having a respective intermediate inner shield which is arranged axially between the stator and a cover shield that can be fixed to the engine housing, and the intermediate shield receives a bearing for the rotor. The cover shield can be releasably fixed to the intermediate shield side facing away from the stator, and the cover shield has centering means for radially centering the intermediate shield.

An apparatus is provided that is configured as or otherwise includes an axial flux electric machine. This axial flux electric machine includes a plurality of rotors, a plurality of stators and a shaft rotatable about an axis. The rotors are disposed axially along the axis and are mounted to the shaft. Each of the rotors includes a plurality of rotor magnets. The stators are axially interspersed with the rotors along the axis. Each of the stators includes a plurality of stator magnets. The stator magnets of a first of the stators are arranged asymmetrically about the axis.

A linear transport system includes a movable unit, a guide rail and a linear motor with a stator and a rotor for driving the movable unit along the guide rail. The stator has a plurality of motor modules arranged along the guide rail, each with a plurality of drive coils. The rotor is arranged on the movable unit and includes a plurality of magnets. A gap is arranged between at least two of the motor modules. The motor module length corresponds to the distance between two drive coil centers multiplied by the number of drive coils per motor module. The rotor length corresponds to the distance between two magnet centers multiplied by the number of magnets on the rotor. The gap length corresponds at least to the motor module length, and the rotor length corresponds at least to the sum of the motor module length and the gap length.

A construction system motor unit comprising a casing, an electrical motor mounted therein, a power outtake element having a connector, and being rotationally connected relative to said casing, a gearing mechanism provided between the electrical motor and the power outtake element, and a sensor to sense the position of the power outtake element relative to the casing, the sensor having a disc element and a sensor device, the disc element is connected to the power outtake element or to a gear of the gearing mechanism via a first rotation transfer part and a receptacle for receiving the first rotation transfer part, which receptacle is formed in the power outtake element or in said gear of the gear mechanism, and wherein the receptacle and the first rotation transfer part have cooperating shapes and sizes configured to allow a backlash between the power outtake element and the first rotation transfer part.

Disclosed rotor assemblies can be configured to address differential thermal expansion in the rotor assembly during ESP motor use. Some rotor assembly embodiments can employ an improved stacking technique to minimize differential thermal expansion issues by removing certain components from the axial stack of supporting components of the rotor assembly. Alternatively, or in conjunction, some rotor assembly embodiments can use a biasing element which is configured to compensate for the differential axial thermal expansion, tolerance stack-up, and/or gravity.

A modular actuator may include a modular actuator base assembly and a modular control assembly. Each of the modular actuator base assembly and the modular control assembly may be selected from a plurality of different modular actuator base assemblies, and a plurality of different modular control assemblies in order to provide an appropriate functionality for a particular application. One or more of the modular actuator base assembly and the modular controller assembly may be field-replaceable, in order to provide additional functionality to an installed modular actuator.

An electrical module configured to be connected to a power shaft of a turbine engine of an aircraft. The electrical module being configured to draw off power from/inject power into the power shaft. The electrical module comprising an electric machine comprising a machine housing in which a stator and a rotor is mounted, configured to be mechanically connected to the power shaft, the machine housing having a cylindrical shape extending along a cylinder axis, a first electric converter mounted in a first housing, a second electric converter mounted in a second housing, the second converter being independent of the first converter, the first housing and the second housing each being in the shape of a half-cylinder extending along the cylinder axis so as to form a cylindrical assembly that is mounted as an extension of the machine housing of the electric machine to limit the size of the electrical module.