Abstract: A turbocharger having a variable turbine nozzle that includes an array of vanes whose setting angle is adjustable by rotation of a crank shaft coupled with a unison ring that pivots the vanes. The crank shaft is rotated by an actuation system made up of a piston contained in a bore formed in the center housing, and a hydraulic system for supplying pressurized hydraulic fluid to the bore selectively on one side or an opposite side of the piston for causing the piston to move in one direction or the other. The piston is connected to the crank shaft by a mechanical linkage that converts reciprocating movement of the piston to rotational movement of the crank shaft. A spring is arranged between the piston and a surface of the bore and continuously exerts a spring force on the piston toward the fully open position of the piston.

Abstract: A spherical motor rotating in multi degrees of freedom has a reliable capability of determining positioning. The spherical motor includes a hollow spherical-shaped stator installed with a bi-level bobbin wound by coil generating a synthesized magneto-motive force on an inner surface thereof; and a rotor formed inside the stator and rotating around a shaft, wherein a slope of the shaft is adjusted by the synthesized magneto-motive force. Two or more of the bobbins are provided and installed at regular intervals along the inner surface of the stator, and the rotor includes one or more permanent magnets. The spherical motor rotating in multi degrees of freedom, formed with the above mentioned figures, can embody multi degrees of freedom by the interaction between the flowing current in the winding coil around the bobbin and the permanent magnet.

Abstract: A flux-switching magnetic machine is provided having a drive element and a driven element. The drive element is configured to generate a composite magnetic field comprising a fixed component and a variable component, the fixed component being generated by spaced fixed field members and the variable component being generated by spaced armature windings. The driven element has a plurality of magnetisable portions configured to be coupled to the composite magnetic field generated by the drive element, such that the driven element moves in response to changes in this field. The number of fixed field members is greater than the number of armature windings.

Abstract: According to one embodiment, a rotary machine stator includes a cylindrical stator core, an insulating film, and a ring-shaped insulator. The stator core includes a slot and a slot opening. The insulating film is formed cylindrical to be in close contact with the inner surface of the slot. The insulating film includes a gate on both ends that is bent to form a film opening as wide as or wider than the slot openings. The insulating film is inserted in the slot such that a film axial direction end of the insulating film protrudes from an axial direction end of the stator core. The insulator is attached to both ends of the stator core. The insulator includes an insulator slot and an insulator opening in substantially the same shape as the slot and the slot opening, respectively, and a lock to lock the film axial direction end.

Abstract: A cooling fan includes a fan housing, a stator mounted in the fan housing and a rotor rotatablely supported by the stator. The stator includes a stator core, an insulating frame attached to the stator core and stator coils wound on the insulating frame and around the stator core. The insulating frame electrically insulates the stator coils from the stator core. The stator core includes a main body and a plurality of claws. Every two neighboring claws define a receiving room therein. The insulating frame includes a bottom portion located at a bottom of the stator core and a plurality of flanges extending upwardly from the bottom portion into the receiving rooms of the stator core, respectively. A height of the flanges is no less than that of the stator core.

Abstract: A voice coil motor includes a base, a shell, first and second magnetic members, a lens retainer, a coil of wire mounted on the retainer, first and second elastic members. The base includes a bottom and posts extending upwards from the bottom. The shell includes a top and sidewalls cooperatively defining a receiving space therein. The shell is mounted on the base with the posts being received in the receiving space. The first magnetic members are positioned on the bottom of the base, the second magnetic members are positioned on the top of the shell, and each two adjacent of the posts have one of the first magnetic members and one of the second magnetic members located therebetween. The first resilient member and a second resilient member each include fixing portions fixed to the posts, and a spring portion connected to retainer between the first and second magnetic members.

Abstract: A motor comprises a stator and a rotor (20) disposed within the stator. The stator comprises a shell comprising a plurality of sidewalls (10a-10d) and arcuate connection parts (11a-11d) connecting neighboring sidewalls. The cross section of the shell is a polygon with fillets. The stator also comprises a plurality of magnets (12a-12d) installed inside the arcuate connection parts. The magnets (12a-12d) are mutual arranged at intervals. The outer surface of each magnet (12a-12d) is attached to inner surfaces of the two neighboring sidewalls (10a-10b) and a gap is formed between the magnet and the inner surface of the corresponding arcuate connection part. Air gaps are formed between the inner surface of the magnets (12a-12d) and the outer surface of the rotor. Disposing the magnets inside the arcuate connection parts improves the space utilization ratio.

Abstract: A linear drive including a stator and a rotor configured for linear reciprocal movement along an axis, with the stator having a magnetic-field guide core having a plurality of legs extending each with one foot substantially toward the rotor, with the rotor having a plurality of magnets disposed in a linear array along the direction of the axis, wherein at least one of a respective one of respective lengths of the magnets along the axis and the respective widths of the legs along the axis and the respective spacings of the legs along the axis are different such that force components of the magnets along the axis will substantially compensate each other when the linear drive is in a de-energized state.

Abstract: An electric motor has a rotor (20), a housing (10) and a ring magnet (12) fixed onto an inner surface of the housing. The housing (10) has a cross section in a polygon, preferably tetragonal, shape that comprises a plurality of side portions (10a˜10d) and a plurality of curved corner portions (11a˜11d), each of which connects two adjacent side portions. The thickness of the ring magnet at portions corresponding to the corner portions of the housing is larger than the thickness of the ring magnet at portions corresponding to the side portions of the housing. An air gap (123) is formed between a peripheral surface of the rotor and an inner surface of the ring magnet, the thickness of the air gap at portions corresponding to the corner portions of the housing being smaller than that of the air gap at portions corresponding to the side portions of the housing. The motor has a polygon housing which is convenient to install and has good space utilization.

Abstract: An electric machine includes a housing, a stator mounted within the housing, and a rotor including a spool assembly. The spool assembly includes a spool having a main body portion having a first end portion that extends substantially uninterrupted to a second end portion through an intermediate portion. The spool further includes a first plurality of mounting elements provided on the first end portion and a second plurality mounting elements provided on the first end portion. A star member is secured to the first end portion of the spool.

Abstract: A stator, with a stator core, a plurality of windings with a plurality of in-phase windings and anti-phase windings, a plurality of slots, an insulating plate, a plurality of cylinders, and a plurality of teeth. The teeth protrude from the stator core. The winding is received in the slot and wraps around the tooth. The insulating plate is disposed on the surface of the stator core. The cylinders are disposed on the insulating plate. A transition line is disposed between two adjacent teeth and hangs on the cylinder. A plurality of supporting mechanisms is disposed on the cylinders.

Abstract: A system is provided for converting thermal energy derived from a solar field into electricity.

Abstract: An electric machine having a rotor and a stator that encloses the rotor, and having a first flange arrangement on at least one end face of the stator, wherein the first flange arrangement has a first flange component that has a connecting surface which adjoins the first end face of the stator and whose geometry is adapted to the geometry of the end face of the stator so that a stator winding, which is wound onto the stator and the adjoining connecting surface, connects the stator and the first flange component to one another.

Abstract: A servo motor is equipped with a rotary shaft, a rotor rotated integrally with the rotary shaft, a stator that is separated a predetermined distance from and disposed in confronting relation to the rotor, and an angle detecting device that detects an angle of rotation of the rotary shaft. On a counter-load side end, which is opposite to a load side end of the rotary shaft, an operating member is provided, which enables the rotary shaft to be rotated manually from an exterior location.

Abstract: An external rotor for a direct current drive motor with a side wall, an end cover, a cavity, an opening, a base, a magnetic tile, a center hole, and a magnetic yoke shell. A method for producing an external rotor for a direct current drive motor by integrally forming by injection molding a magnetic yoke shell and multiple magnetic tiles; forming a side wall on said magnetic yoke shell and an end cover at the bottom of said side wall; forming a base at the center of said end cover; and integrally forming by injection molding said base and a rotating spline.

Abstract: An electric machine, especially a brushless DC motor. Said electric machine comprises a rotor and a stator which is provided with current-carrying coils. Said rotor, in the circumferential direction, is provided with a plurality of permanent magnets that are embedded in respective magnet retainers between the peripheral surface and the shaft of the rotor in such a manner that the permanent magnets, in the radial direction, are completely encircled by the peripheral surface of the rotor. In the area of the magnet retainer, recesses extend laterally in the circumferential direction of the rotor and axially within the rotor.

Abstract: The invention relates to an electrical machine with an internally cooled rotor. In order to improve the cooling power of such a machine without the use of a fan wheel fitted separately on the rotor, the invention proposes an electrical machine with a stator laminate stack and a rotor in a housing, which electrical machine has an internal cooling circuit comprising rotor cooling channels, which pass axially through the rotor and are arranged on two concentric circles, in which internal cooling circuit a gaseous coolant can be circulated, wherein fan vanes and a first means for guiding the coolant from the rotor cooling channels on one of the two concentric circles via a winding head to the rotor cooling channels on the other of the two concentric circles are provided in the case of the machine on a first rotor end side. As a result, particularly those regions are cooled optimally in which the dissipation of lost heat is problematic.

Abstract: A direct current drive motor with a stator core, an end insulator, and a coil winding forming a stator, and a housing, a magnetic yoke shell, and multiple magnetic tiles, forming a rotor. The magnetic yoke shell and the magnetic tiles are disposed on the housing. Multiple teeth protrude from a side wall of the stator core. A slot is formed between two adjacent teeth. The coil winding is disposed in the slot and wraps around the tooth.

Abstract: A cooling apparatus is for dissipating heat from an electronic device. The cooling apparatus includes a casing, an impeller, and a motor. The casing is for absorbing the heat and allowing coolant to flow therein. The impeller is received in the casing. The motor is received in the casing, and is for providing a force to drive the impeller to rotate to force the coolant to flow. The coolant flows between the casing and the motor to take the heat away.

Abstract: An inner-rotor-type motor includes a housing, a stator, a rotor, a permanent magnet and a cover plate. The housing has a compartment. The stator is received in the compartment. There is an assembling hole arranged at the axial center of the stator and passing through the stator from the top to the bottom thereof. The rotor has a shaft with one end thereof rotatably extending through the assembling hole, with a bearing being mounted around the shaft. The permanent magnet is fixed to an outer periphery of the shaft and beside the bearing, with the permanent magnet facing the stator. The cover plate is arranged between the permanent magnet and the bearing. Consequently, impurities are prevented from entering an undesired interstice between the bearing and the shaft or from entering the inside of the bearing, such that smooth rotation of the rotor is provided and such that life of the inner-rotor-type motor is extended.