Abstract: According to one embodiment, there is provided a high pressure bushing arranged through by penetrating a stator frame of a rotating electrical machine in which a cooling gas is sealed. At least a communicating hole is provided in the hollow connecting conductor and at least a reflux hole is provided in the gas circulation pipe, such that the cooling gas flows in both of the first gap and the second gap, passes through an inner side of the gas circulation pipe, and is discharged to the machine inner side.

Abstract: A voice coil motor is disclosed, the motor including: a mover including a bobbin including a first bobbin having a lens secured therein and a plurality of second bobbins intermittently protruded from an upper surface of the first bobbin, and a coil block secured to a periphery of the first bobbin; a stator including a magnet facing the coil block and a yoke securing the magnet; a case including a bottom case formed with the bobbin and an upper case coupled to the bottom case and having a portion that is correspondingly opened to the bobbin; and an elastic member elastically supporting the bobbin, wherein any one of the yoke and the upper case is formed with a rotation prevention unit extended to the plurality of second bobbins in order to prevent the bobbin from rotating.

Abstract: An electrical machine comprises: a first rotor, rotatable about a first axis, and having a first arrangement of magnets on a first surface thereof; a second rotor, held with a first surface thereof adjacent the first surface of the first rotor and such that it cannot rotate about the first axis, but is rotatable about a second axis, and having a second arrangement of magnets on the first surface thereof; wherein the first and second arrangements of magnets are such that rotation of the first rotor about the first axis causes rotation of the second rotor about the second axis. The first rotor is in the form of an at least partial hollow torus, with the first surface thereof being an internal surface. The second rotor is in the form of a cylinder, located within the hollow torus, with the first surface thereof being an external surface, such that the second axis is perpendicular to the first axis.

Abstract: A drive unit has a motor, a control unit, and a fastener. The motor is housed in a motor case, and includes a stator, a rotor, and a shaft. The stator has winding wires that are wound therein and are electrically coupled to motor wires. The rotor is disposed inside of the stator and the shaft is disposed in and coupled to the rotor, such that the rotor and shaft rotate, as one, within the stator. The control unit includes a semiconductor module with a switching element, a connection terminal that electrically couples the switching element with other devices, and a control unit case to house the semiconductor module. The fastener is disposed in the control unit case, such that the fastener couples the motor and the control unit, and electrically couples the motor wire and the connection terminal.

Abstract: A motor includes an armature, a yoke, and an end bracket. The yoke has a bottom and an open end and accommodates the armature. The end bracket substantially closes the open end of the yoke. A connector portion, which bulges outward of the yoke, and a cutout portion are formed in the circumferential wall of the end bracket. A pair of feed members is provided to extend from the interior of the end bracket to the connector portion through the cutout portion. Each feed member has a plurality of connection portions. Each of a pair of terminals of each of a plurality of noise suppression elements is connected to each connection portion. The connection portions are formed in the feed member and arranged in the radial direction.

Abstract: A drive guide device capable of effectively releasing heat produced by a mover. The drive guide device has a movement unit 100 moved by a linear motor while being guided by a rail 230. The movement unit 100 has the mover 140 to which electricity is conducted to produce a magnetic field, a table 110 placed on the mover 140 on the opposite side of a base 210 to which the rail 230 is fixed, a heat sink 130 having heat radiation fins for releasing heat produced by the mover 140 and placed between the mover 140 and the table 110, and a heat transmission route for transmitting heat, which cannot be released by the heat sink 130, to the table 110. The table 110 is made from a material having a low thermal expansion coefficient.

Abstract: There is provided an axial gap type generator. The an axial gap type generator includes: generator cases are fixed to a crank case of an engine; a rotor yoke housed inside the generator cases and fixed to a crankshaft of the engine; a first stator core and a second stator core fixed to inner faces of the generator cases and disposed flanking the rotor yoke in a rotation axis direction; generator case supports for supporting the generator case in such a manner that a surface section of the generator case opposing the crank case has a spacing between the surface section and the crank case.

Abstract: A brushless motor has a stator and a rotor. The stator has a stator core and stator windings. The stator core has a stator yoke and teeth extending radially inwardly from the stator yoke. The stator windings are formed by concentrated coils wound on the teeth. The rotor has a rotor shaft, a rotor core fixed to the rotor shaft and magnets fixed in slots formed in the rotor core. Each magnet is plate shaped and extends in both axial and radial directions of the rotor and each magnet is magnetically charged across its thickness so that a rotor pole is formed between two adjacent magnets. The ratio of the radial thickness (Y) of the stator yoke to the width (T) of the tooth body is from 0.4 to 0.7.

Abstract: A motor comprising a motor housing, a stator located within the motor housing, a rotor supported for rotation within the motor housing upon a rotor shaft, the rotor shaft being supported for rotation by bearings, and a sealing sleeve, wherein the sealing sleeve is of closed ended form and encircles the rotor, the sealing sleeve being sealed adjacent its open end to the motor housing.

Abstract: There is provided an axial gap type generator exhibiting improved precision in positioning stator cores. An axial gap type generator comprises a generator case fixed to a crank case of an engine, a rotor yoke housed inside the generator case, and fixed to a crankshaft of the engine, and a first stator core and a second stator core fixed to generator case inner faces, and disposed flanking the rotor yoke in a rotation axis direction. The generator case is configured through direct connection of a first member to which the first stator core is fixed and a second member to which the second stator core is fixed.

Abstract: A motor includes a stator having a winding wire wound thereon, a rotor, and a shaft. The motor is housed in a motor case, where the motor case has a cylinder part and a bottom part. A first terminal is disposed on the motor case, and has one end coupled to an end of the winding wire, such that the wire passes through a first opening on the bottom part. A controller case is disposed detachably on the bottom part. The controller case has a controller housed therein, and has a second terminal that has one end electrically coupled to a power module and the other end engages with the first terminal to electrically couple the motor and the controller. A terminal holder is attached on the motor case to hold and support the first terminal.

Abstract: A drum motor for driving a conveyor belt has a drum motor shell that has at least one torque transfer section in which the outer surface of the shell is polygonal in cross-section. A sprocket having a polygonal, preferably hexagonal inner recess may be provided for transferring torque from the drum motor to a modular belt. Motor components are in a hollow space of the shell, namely a rotor and stator, a first bearing journal arranged on a first end of the shell and a second bearing journal arranged on a second end of the shell, the rotor and stator being mechanically coupled to the shell and to the first and second bearing journals in such a way that relative rotation between the rotor and stator causes relative rotation between the drum motor shell, for the one part, and the first and second bearing journals, for the other part.

Abstract: An electric machine comprises a rotor, preferably having permanent magnets, although other field generation means are available, and a stator. The stator has coils wound on stator bars for interaction with the magnetic field of the rotor across an air gap defined between them. The rotor comprises a housing of a chamber containing refrigerant. The rotor housing has heat dissipating fins accessible by the open environment whereby air movement relative to the housing caused at least by rotation of the rotor absorbs heat from the fins. The machine may be an axial flux machine, the coils being wound on bars that are disposed circumferentially spaced around a fixed axle of the machine forming a rotational axis of the rotor. The machine may be a wheel motor for a vehicle, wherein the wheel is mounted directly on the rotor housing.

Abstract: A yoke of a motor has a bottom and an open end and accommodates an armature. An end bracket substantially closes the open end of the yoke. A connector portion, which bulges outward of the yoke, and a cutout portion are formed in the circumferential wall of the end bracket. A pair of feed members is provided to extend from the interior of the end bracket to the connector portion through the cutout portion. The end bracket has an accommodation recess for accommodating the noise suppression element at a position corresponding to the cutout portion. Each feed member has an accommodation recess corresponding portion, which corresponds to the accommodation recess, and a cutout portion corresponding portion, which corresponds to the cutout portion. The distance between the accommodation recess corresponding portions of the feed members is greater than the distance between the cutout portion corresponding portions.

Abstract: The electrical energy generating system of the present invention comprises a piece of alignment Buckypaper, an energy generator, a thin deposition and two contacts. The alignment Buckypaper is a thin sheet made from an aggregate of carbon nanotubes. The thin deposition is formed on at least one surface of the alignment Buckypaper by electrolysis to form a semimetal material. A contact is connected with the upper surface of the alignment Buckypaper and the other contact is connected with the lower surface of the alignment Buckypaper. In use, the energy generated by the generator is inputted to the alignment Buckypaper. The energy then ionizes the molecules contained in the alignment Buckypaper. The positive charges move to the upper contact and the negative charges move to the lower contact. Such electrical energy may then be fed to a load connected with the two contacts to do work on the load.

Abstract: There is provided a spindle motor including: a shaft connected directly or indirectly to a base member and having a depression groove formed in a central portion of an outer peripheral surface thereof; a sleeve rotatably installed on the shaft and having a communication hole formed so as to be connected to the depression groove; and a rotor hub fixedly installed on the sleeve to thereby rotate together therewith, wherein the communication hole is inclined so that lubricating fluid may be easily injected into the depression groove, and the sleeve has a fluid storage part formed on an outer peripheral surface thereof, the fluid storage part being connected to the communication hole and temporarily storing the lubricating fluid therein.

Abstract: A drive section for a substrate transport arm including a frame, at least one stator mounted within the frame, the stator including a first motor section and at least one stator bearing section and a coaxial spindle magnetically supported substantially without contact by the at least one stator bearing section, where each drive shaft of the coaxial spindle includes a rotor, the rotor including a second motor section and at least one rotor bearing section configured to interface with the at least one stator bearing section, wherein the first motor section is configured to interface with the second motor section to effect rotation of the spindle about a predetermined axis and the at least one stator bearing section is configured to effect at least leveling of a substrate transport arm end effector connected to the coaxial spindle through an interaction with the at least one rotor bearing section.

Abstract: A machine such as a ship's engine has a superconducting component requiring cooling for its operation, and includes a cooling system. The cooling system is operable in first and second modes. In a cool-down phase the cooling system is run in the first mode providing relatively high heat transfer from the superconducting component. On attainment of a desired operating temperature the cooling system is run in the second mode, providing lower heat transfer. This enables a reduced cool-down time of the machine, while allowing economical operation in normal service. The higher level of cooling in the first mode used during the start-up procedure can involve a colder cryogen, or a greater flow of coolant. One way of achieving the latter is to circulate the coolant in normally evacuated regions during the cool-down phase, and then re-establishing the vacuum in these regions for normal service operation.

Abstract: A stator arrangement for an electromechanical transducer is provided. The stator arrangement includes a base structure, a coil holder, a coil mounted at the coil holder; and a flexible element connecting the base structure to the coil holder flexibly relative to each other. Further, an electromechanical transducer is provided that includes the above-mentioned stator arrangement and a rotor arrangement rotatable relative to the base structure around an axial direction. Still, further, a wind turbine is provided that includes the above-mentioned electromechanical transducer as a generator.

Abstract: The present invention relates to a permanent magnet generator for outputting a stabilized electromotive force. More specifically, the permanent magnet generator for stabilizing an electromotive force outputs an electromotive force stably according to the rotation speed of a motor and stabilizes the wave form of the electromotive force to be close to sine waves.