Abstract: A magnetic powder is represented by general formula FeaSibBcPdCue. 71.0?a?81.0, 0.14?b/c?5, 0?d?14, 0<e?1.4, d?0.8a?50, e<?0.1(a+d)+10, and a+b+c+d+e=100. A crystallinity is not more than 30% in the case of containing an amorphous phase and a compound phase, and is not more than 60% in the case of not containing a compound phase. The magnetic powder is produced with a gas atomization method. Whereby, it is possible to obtain an alloy magnetic material which has high saturation magnetic flux density and low magnetic loss; and a magnetic core, coil components, and a motor can be realized.

Abstract: A conductor retention member for a stator core includes a body formed from a non-electrically conductive material. The body includes a radial outwardly facing edge and a radial inwardly facing edge. A plurality of openings extends between the radial inwardly facing edge and the radial outwardly facing edge formed in the body. The body is configured and disposed to be arranged at an axial end of the stator core with the plurality of openings registering with corresponding ones of a plurality of stator slots.

Abstract: An electric motor has a stator, a rotor and brush gear. The rotor includes a shaft, a rotor core fixed to the shaft, a commutator fixed to the shaft, and rotor windings wound on the rotor core and electrically connected to the commutator. The brush gear includes at least two arcuate brushes for making sliding contact with the commutator. The commutator and brush gear are disposed within a space formed in the rotor core to minimize the axial length of the motor.

Abstract: A rotating electrical machine includes a flange provided at one end of a hollow frame in an axial direction; a rotor including a shaft, the shaft being rotatably supported by the flange; and a stator fixed to an inner section of the frame, the stator surrounding the rotor. The rotor includes a first rotor core and a second rotor core arranged in the axial direction and having recesses formed in the axial direction, and a rotor-core space defined by the recesses that are formed in the first rotor core and the second rotor core and that face each other.

Abstract: A electric motor is disclosed in which torque ripple is reduced. The electric motor includes a single motor shaft. Rotors are disposed so as to be mutually offset in phase, and the rotors are secured to the motor shaft. Stators are arranged so as to individually correspond to the rotors, and the stators are disposed so as to be matched in phase. The phases of torque ripple generated in each motor unit, which is comprised of a combination of a single rotor and a single stator, are offset.

Abstract: A directed flux motor described utilizes the directed magnetic flux of at least one magnet through ferrous material to drive different planetary gear sets to achieve capabilities in six actuated shafts that are grouped three to a side of the motor. The flux motor also utilizes an interwoven magnet configuration which reduces the overall size of the motor. The motor allows for simple changes to modify the torque to speed ratio of the gearing contained within the motor as well as simple configurations for any number of output shafts up to six. The changes allow for improved manufacturability and reliability within the design.

Abstract: A directed flux motor described utilizes the directed magnetic flux of at least one magnet through ferrous material to drive different planetary gear sets to achieve capabilities in six actuated shafts that are grouped three to a side of the motor. The flux motor also utilizes an interwoven magnet configuration which reduces the overall size of the motor. The motor allows for simple changes to modify the torque to speed ratio of the gearing contained within the motor as well as simple configurations for any number of output shafts up to six. The changes allow for improved manufacturability and reliability within the design.

Abstract: An electrical synchronous machine, in particular for use as a drive machine in motor vehicle applications. A stator has an electrical winding arrangement for generating a rotating field. A rotor has magnetic flux generating means for generating a rotor flux with which the rotating field interacts. The rotor has a first rotor section with first magnetic flux generating means and a second rotor section with magnetic flux influencing means. It is possible to move the two rotor sections relative to one another between at least a first and a second relative position in such a way that the rotor flux provided by the rotor has a different magnitude in the two relative positions.

Abstract: Devices and methods are provided for a rotor assembly and an electric motor. One embodiment for a rotor assembly includes a first rotor including a first interface surface and a second rotor including a second interface surface corresponding to the first interface surface. Also, the first rotor is positioned with the first interface surface in direct physical contact with the second interface surface of the second rotor.

Abstract: In at least one aspect, a second multi-axis vacuum motor assembly is provided. The second multi-axis vacuum motor assembly includes (1) a first rotor; (2) a first stator adapted to commutate so as to rotate the first rotor across a vacuum barrier and control rotation of a first axis of a robot arm within a vacuum chamber; (3) a second rotor below the first rotor; (4) a second stator below the first stator and adapted to commutate so as to rotate the second rotor across the vacuum barrier and control rotation of a second axis of the robot arm within the vacuum chamber; (5) a first feedback device adapted to monitor rotation of the first axis of the robot arm; and (6) a second feedback device adapted to monitor rotation of the second axis of the robot arm. Numerous other aspects are provided.

Abstract: A change in torque produced by a motor having two rotors is reduced when the motor operates in a low-velocity and low-torque operational state. The motor has a first rotor and a second rotor, each of which has a permanent magnet, and an output shaft capable of rotating integrally with the first rotor. The second rotor can relatively rotate with respect to the first rotor by a driving force from a phase difference changing driving device, and the phase difference between the rotors (rotor phase difference) can be changed by the relative rotation of the second rotor with respect to the first rotor. When the values of the torque and the rotational velocity of the motor lie within a predetermined region in the proximity of 0, the phase difference changing driving device adjusts the rotor phase difference to a predetermined phase difference for which the strength of a composite field of the permanent magnets is lower than a maximum strength.

Abstract: A dual rotor-type motor includes a stator located between inner and outer rotors. The stator includes a core having first and second surfaces that face magnets on respective circumferential surfaces of the rotors. The surfaces of the core are spaced predetermined distances from the magnets on thr rotors and an insulating material can be included around the core.

Abstract: A directed flux motor described utilizes the directed magnetic flux of at least one magnet through ferrous material to drive different planetary gear sets to achieve capabilities in six actuated shafts that are grouped three to a side of the motor. The flux motor also utilizes an interwoven magnet configuration which reduces the overall size of the motor. The motor allows for simple changes to modify the torque to speed ratio of the gearing contained within the motor as well as simple configurations for any number of output shafts up to six. The changes allow for improved manufacturability and reliability within the design.

Abstract: Arrangement for providing an integrated starter generator apparatus for producing electrical power and/or rotational torque. The apparatus includes a primary rotor (18) arranged for cooperation with a primary stator (16), and a secondary rotor (20) arranged for cooperation with a secondary stator (17). A one-way clutch (19) is disposed between the primary rotor (18) and the secondary rotor (20) that permits both rotors to be locked together in one direction of rotation, and that allows them to operate independently in the opposite direction of rotation.

Abstract: Embodiments of the present invention are directed to gear transmission apparatus that are configured to largely eliminate the cogging effects and to reduce the backlash effects. In one embodiment, a transmission apparatus comprises a follower gear, a first drive gear set coupled with the follower gear to drive the follower gear, and a second drive gear set coupled with the follower gear to drive the follower gear. The first drive gear set includes at least one gear, and the second drive gear set includes at least one gear. A first motor is coupled with the first drive gear set. The first motor includes a first rotor having a plurality of poles which are movably disposed relative to a plurality of magnets. A second motor is coupled with the second drive gear set. The second motor includes a second rotor having a plurality of poles which are movably disposed relative to a plurality of magnets.

Abstract: A magnetically actuated rotary apparatus includes a casing, a supporting frame, a central shaft, a rotor assembly, an outer actuating assembly, and an actuating device. The rotor assembly is coupled with the central shaft and rotatable with the central shaft about a central axis of the central shaft. The rotor assembly is provided with a plurality of fixed rotor magnets supported by a fixed rotor magnet supporting mechanism to the rotor assembly. Each of the fixed rotor magnets has an inclined angle with respect to the central axis of the central shaft. An outer actuating assembly is arranged around the rotor assembly, comprising a plurality of movable outer magnets spaced by baffle plates from each other. The movable outer magnet is formed with an inclined angle correspondingly opposite to the fixed rotor magnet mounted on the rotor assembly.