Electrical generator or motor structure inventions 05/06

20060108877 - Extensible coil for biaxial driver: A biaxial driver includes an induction coil that is moveable in two dimensions and a linearly oriented magnet. A payload platform for holding a tool or workpiece is attached to the moveable coil. The inventive driver provides motion parallel to an axis of the magnet, even while the coil is...

20060108879 - Linear motor: Each of three inductors 1A to 1C is so arranged that a tooth row 7 therein is located on each side thereof in a width direction thereof orthogonal to a moving direction of an armature 3. The three inductors are arranged spaced apart from each other by a predetermined spacing...

20060108878 - Linear motor and stator core therefor: A linear motor comprising a stator core and/or a mover. The stator core of said linear motor comprising an inner perimeter, an outer perimeter essentially encircling the inner perimeter, a first and a second tooth being arranged along one of the inner perimeter or the outer perimeter, a slot for...

20060108880 - Linear compressor: Disclosed herein is a linear compressor. The linear compressor comprises a cooling channel disposed in contact with a bobbin on which a coil is wound, and a cooling fluid supply unit to supply a cooling fluid to the cooling channel such that the bobbin and the coil are cooled by...

20060108881 - Electric machine, particularly a brushless direct current motor: An electric machine, in particular a brushless DC motor, having a stator arrangement and a rotor arrangement that are arranged coaxially with respect to one another, the rotor arrangement having a rotor body and permanent magnets embedded in the rotor body, at least one magnetic sensor for the purpose of...

20060108882 - Method and apparatus for mechanical phase synchronization of multiple ac generators: An apparatus performs mechanical phase synchronization of multiple AC generators in an electrical power distribution system. The apparatus according to one embodiment comprises a gearbox mechanically coupled to a prime mover, multiple AC generators, each having a rotor driven by mechanical energy from the prime mover supplied via the gearbox...

20060108883 - Motor: A motor with an oil seal. The oil seal includes a first storage wall disposed in a position corresponding to a recess of a shaft. The oil seal receives lubricant and prevents leakage of the lubricant, enhancing self-lubrication of the motor. A bottom storage tank with a specific sloped surface...

20060108884 - Motor control apparatus, power steering apparatus and brake control apparatus: A motor control apparatus includes a motor, and a control system board supporting a control circuit to control the motor. The apparatus may further include a power system board supporting a power supply circuit to supply power to the motor. The control system board includes a first board portion facing...

20060108885 - Motor: A motor includes a bearing receiving the shaft end of a rotor. a bearing holder provided with a through hole into which the bearing is inserted, a spring member which is disposed on one end side of the bearing holder and provided with a plate spring part which urges the...

20060108886 - Electric motor, especially bell armature motor: An electric motor has a rotor and a magnet system having at least one permanent magnet generating a magnetic field. At least one braking element made of ferromagnetic material is positioned at least partially within the magnetic field of the permanent magnet. The electric motor has a housing with a...

20060108887 - Permanent magnet motor and washing machine provided therewith: A permanent magnet motor includes a stator, and a rotor including a rotor core made by stacking a plurality of steel plates and having a plurality of magnetic insertion holes aligned peripherally and a plurality of permanent magnets of a plurality of magnetic poles serving as field magnets and inserted...

20060108889 - Method and system for handling a stator bar using a pit: A stator bar facility including: a stator bar workstation; an in-ground pit below the workstation; a stator bar elevator extending from the workstation pit, and a coupling mechanism attached to the elevator, wherein the coupling mechanism further comprises a rotational mount to receive at least one stator bar, wherein the...

20060108888 - Rotor for line-start reluctance motor: The present invention discloses a rotor for a line-start reluctance motor which improves core area efficiency to make flux flow in one direction. The rotor for the line-start reluctance motor includes a core having an axis coupling hole in a coupling direction of a shaft, a plurality of bars formed...

20060108890 - Stator arrangement for an electric machine, a method for the manufacture of a stator arrangement and a direct current motor: The invention relates to a stator arrangement for an electric machine, particularly a DC motor, comprising a stator body having a stator back yoke ring and a number of stator teeth between which stator slots to receive stator windings are formed, the stator teeth extending radially from the stator back...

20060108891 - Skew shape variable laminated iron core and method of producing the same: In a laminated iron core (10) in which plural iron core pieces (13, 14, 15) are laminated through caulking projections (22, 24) and caulking holes (21, 23, 25) in which the caulking projections are fitted, and in the iron core pieces except a lowermost layer, the caulking projections and the...

20060108892 - Inlet guidevanes for generator rotors: The present invention provides for a method of installing a guidevane 20 to an end plate 6 that comprises manufacturing a guidevane with at least one tab 30 located on a top length-wise edge of the guidevane and multiple tab slots 32 located on the length-wise edge. Then attaching the...

20060108893 - Electrostatic actuator: An electrostatic actuator includes a stator that includes a stator-side electrode group including a plurality of electrodes, a mover that includes a mover-side electrode group including a plurality of electrodes and that can move in a predetermined movement direction, this plurality of electrodes opposing the electrodes in the stator-side electrode...

20060108894 - Surface acoustic wave device and electronic apparatus: A surface acoustic wave device including at least an interdigital transducer electrode that excites a Rayleigh surface acoustic wave on a surface of a crystal substrate and giving excitation in an upper limit mode of a stopband of the surface acoustic wave, wherein Euler angle representation (ψ, θ, Ψ) showing...

20060108895 - Flat type piezoelectric ultrasonic motor: There is provided a flat type piezoelectric ultrasonic motor for generating a rotation force to a rotor by ultrasonic vibrations. In the piezoelectric ultrasonic motor, a vibrator is formed of elastic material at a given size, a plurality of piezoelectric plates are attached on the vibrator, a rotor is drivingly...

20060108896 - Piezoelectric/electrostrictive device: A piezoelectric/electrostrictive device includes: a ceramic substrate having a thick portion and a thin diaphragm portion; and a piezoelectric/electrostrictive element having a layered structure including a lower electrode, a piezoelectric/electrostrictive film, and an upper electrode, and the thin diaphragm portion of the ceramic substrate is constituted to vibrate in conjunction...

20060108897 - Piezoelectric/electrostrictive device: A piezoelectric/electrostrictive device includes: a ceramic substrate having a frame-like thick portion, a thin diaphragm portion, and a cavity formed by the thick portion and the thin diaphragm portion to communicate with the outside; and a piezoelectric/electrostrictive element having a layered structure including a lower electrode, a piezoelectric/electrostrictive film, and...

20060108898 - Piezo actuator: A piezoelectric actuator for actuating a mechanical component in which the piezoelectric actuator is provided with a multilayer construction of piezoelectric layers and can be acted upon by an electrical voltage in a piezoelectrically active region via inner electrodes disposed between the layers. At least one inactive region is present...

20060103243 - Motor and method of manufacturing the same: A motor in which drive coils are arranged in an axial direction of a cylindrical rotor magnet of which an outer peripheral surface is magnetized, the drive coils are cylindrical bodies having respectively center holes into which a rotor shaft is to be inserted, curling cases each of which is...

20060103244 - Electroplated stator bar end and fitting: The interior of a stator bar clip that is joined to the end of a stator bar is electroplated so that a metallic barrier coating overlies the braze joint between the stator bar and the clip to define a seal at and around the joint that is substantially impermeable to...

20060103245 - Engine cooling motor-module ventilation configuration: A permanent magnet D.C. electric motor 100 includes a motor housing 118 having first and second ends and a generally cylindrical periphery between the ends. The first end 120 is substantially closed and has an end of a shaft 124 extending there from. The first end includes vent holes 16...

20060103246 - Automotive alternator with magnetic fluctuation suppressor for suppressing fluctuations in rotational movement: An automotive alternator includes a rotary shaft, a pulley, a stator, a rotor, and a magnetic fluctuation suppressor. The pulley is provided on the rotary shaft to transmit rotating power from an engine to the rotary shaft. The stator includes a stator winding. The rotor is mounted on the rotary...

20060103247 - Stator for outer rotor multipole generator and method of assembling the stator: An outer rotor type multi-pole generator stator is provided in which a lead wire extending from a coil is connected by fusing to a connecting terminal fitted into and fixed to a bobbin wherein, in order to avoid the lead wire becoming slack after connection by fusing and enable assembly...

20060103248 - Spindle motor and recording disk driving device including the same: A spindle motor in one inventive implementation includes a rotor hub (10) for retaining a rotor magnet (70) and a stator (80) which is faced to the radial inner side of the rotor magnet (70) with a gap interposed therebetween. A shield sheet (90) is placed between the upper side...

20060103249 - Superconducting magnetic bearing: A superconductive magnetic bearing 22 comprises a stationary bearing portion 23 having an annular superconductor unit 26 provided on a fixed portion 20, and a rotatable bearing portion 24 having annular permanent magnet units 28, 29 provided on a rotary portion 21 so as to be opposed to the superconductor...

20060103250 - Magnetic motor axle assembly: A magnetic motor axle assembly for magnetically augmenting the rotational driving efficiency of a typically electric motor is disclosed. The magnetic motor axle assembly includes a housing and multiple housing magnets provided in the housing. An elongated rotor assembly is rotatably mounted in the housing, and multiple rotor magnets are...

20060103251 - Rotor of permanent magnet rotating electric machine: In the prior art in which permanent magnets are regularly arranged over the whole circumference of a rotor core, a satisfactory magnetic flux distribution is hard to obtain, and the cogging torque and the distortion factor of the induced electromotive force waveform are large, whereby characteristics of a rotating electric...

20060103252 - Magneto-generator: A magneto-generator includes: a plurality of magnets disposed being bonded to an inner circumferential surface of a flywheel; and a magneto coil that is disposed in the flywheel being opposed to the magnets and coaxial with the flywheel, and that generates an electric power by the action of electromagnetic induction...

20060103253 - Rotor for permanent magnet motor of outer rotor type: A rotor for a permanent magnet motor of the outer rotor type is disclosed. The rotor has a plurality of permanent magnets and is disposed around an outer circumference of a stator. The rotor includes a frame, an annular iron core combined integrally with the frame, and a plurality of...

20060103254 - Permanent magnet rotor: A rotor for an electric machine has a rotor core with a plurality poles and a method of magnetizing the poles of a rotor. At least one of the poles includes a plurality of cavities spaced radially from one another with each of the cavities having a magnet portion. Each...

20060103255 - Rotary electric machine, stator coil for rotary electric machines, and method of producing the stator: In a stator coil of a rotary electric machine, a first crank portion radially shifts one side of a turn portion from the other side thereof by a first length. The one side extends to one of paired straight portions, and the other side extends to the other thereof. A...

20060103256 - Laminated core of a stator and/or of a rotor of a splash-cooled electrical machine as well as a splash-cooled electrical machine: A laminated core of a stator and/or rotor for a splash-cooled electrical machine, where the stator and/or rotor are mounted inside the housing of the splash-cooled electrical machine. The laminated core has a main body in the form of a hollow cylinder, and means on at least one end surface...

20060103258 - Rotating electric machine, and winding method and core therefor: A method for winding a wire in a rotating electric machine provided with an armature including a plurality of core members. Each core member has two teeth arranged at an interval of 180 degrees. A connecting portion and an annular portion connect the two teeth. The core members are joined...

20060103257 - Segmented dynamo-machine component fabrication: A pallet-based transportation system is provided for the fabrication of stators from multi-part inner subassemblies. The pallet has seating structures for holding an inner subassembly in an upright orientation, and fixtures for referencing the radial positions of poles. A lift mechanism operates though an aperture in the pallet to raise...

20060103259 - Brush-holder assembly for electric machine: This brush holder assembly for an electric machine comprises a bearing-forming metal end cap (26) intended to be mounted on a carcass of the machine, and a set of members (28, 30, 32, 34) for electrical connection of the brushes mounted on the end cap (26) by means of rivets...

20060103260 - Motor for an electrically-operated latch: An electric motor includes a rotor and a commutator housing having at least two flexible conductors connected to brush holders. The flexible conductors provide a connection to electrical supply posts which extend parallel to an axis of the rotor. The motor can thus be assembled into a housing, such as...

20060103261 - Electroplating method for sealing liquid-cooled generator stator bar structures: The interior of a stator bar clip that is joined to the end of a stator bar is electroplated so that a metallic barrier coating overlies the braze joint between the stator bar and the clip to define a seal at and around the joint that is substantially impermeable to...

20060103262 - Plate member, magnetic element using the same, and magnetic element manufacturing method: A plate member includes a frame portion (51) provided in a state of coupling both one end portion and other end portion and mounting terminal portions (44) protruding from the one end portion and the other end portion of said frame portion (51) to approach each other, from which a...

20060103263 - Rotating electric machine: A tooth 61 is mounted to a stator yoke 60 in a state in which at least part of it (a portion 81 to be inserted into the yoke) is inserted into an insertion hole 75 formed through the magnet-opposed surface of the stator yoke 60, and the cross-sectional area...

20060103264 - Actuator device, liquid ejection head, and method of inspecting the same: A substrate is formed with a pressure generating chamber. A vibration plate is joined to the substrate so as to form a part of the pressure generating chamber. A first piezoelectric element is disposed on a part of the vibration plate facing the pressure generating chamber. The first piezoelectric element...

20060103265 - Ultrasonic transducer array and method of manufacturing the same: A method of manufacturing an ultrasonic transducer array in which plural ultrasonic transducers are arranged on a curved surface with narrow pitches and narrow gaps. The method includes the steps of: (a) preparing a substrate having a curved surface; (b) forming a lower electrode layer on the curved surface of...

20060103266 - Driving device and optical device using the same: A driving device according to the present invention includes an electromechanical transducer secured at its one end to a stationary body, a driving frictional member secured to the other end of the electromechanical transducer, and a moving body which frictionally engage with the driving frictional member. The moving body has...

20060103267 - Optimized ultrasonic phased array transducer for the inspection of billet material: An ultrasonic phased array transducer system comprises an ultrasonic phased array transducer having a piezo central element, concentric piezo ring elements enclosing the piezo central element, concentric sectored piezo rings having piezo sector elements enclosing the piezo ring elements; a driver/processor having a plurality of input/output ports, each input/output port...

20060103268 - Piezoelectric actuator, method for manufacturing piezoelectric actuator, and liquid transporting apparatus: A piezoelectric actuator includes a supporting member in which pressure chambers are formed, a vibration plate which is joined to a joining section of the supporting member, a piezoelectric layer formed on the vibration plate, and an FPC provided on the piezoelectric layer. A contact section of an electrode formed...

20060097582 - Rotating electrical machine: A rotating electrical machine is described, wherein the rotor (1) is rotatably journalled to the stator (3) via bearing devices (5, 16) arranged in or adjacent to an air gap between the rotor (1) and the stator (3)....

20060097583 - Electromechanical transducers: A drive assembly for a loudspeaker comprises a permanent magnet (42) and pole pieces (44a, 44b, 44c, 44d, 4e, 44f, 44g, 44h, 46a, 46b, 46c, 46d) of ferromagnetic material. The pole pieces define an air gap (43) in which a coil formed from windings (40a, 40b) on a former (41)...

20060097584 - Linear motor with a segmented stator: A linear motor having a fixed inductor and a moving part including windings and a stator. The stator includes a plurality of teeth defining a plurality of slots into which the windings are inserted, the stator being segmented into a first piece and a second piece adjacent to the first...

20060097585 - Positioning apparatus, exposure apparatus using thereof and device manufacturing method: A positioning apparatus including a movable member having a plurality of magnets, and a plurality of coils arranged in X- and Y-axial directions, for displacing the movable member in the X- and Y-axial directions, and in a rotational direction around the Z-axis....

20060097586 - Winding coil assembly of reciprocating motor and manufacturing method thereof: A winding coil assembly (6) of a reciprocating motor comprising: an outer stator; an inner stator (2) arranged at an inner circumference surface of the outer stator (2) with a certain air gap; a magnet linearly and movably arranged between the outer stator and the inner stator; and a winding...

20060097587 - Active vibration damping device: An active vibration damping device having a solenoid actuator designed with a movable element positioned inserted into a guide hole of a stator having a yoke member is attached about a coil to form a stator-side magnetic path with the guide hole lying on its center axis, so that current...

20060097588 - Stepping motor: A stator is press fitted into a recess of a casing. The recess has a chamfered portion. The chamfered portion is arranged between an inlet opening end of the recess and a bottom of the recess in such a manner that a width of the recess is progressively increased along...

20060097589 - Rotary engine with shaft bearing having two stiffnesses, rotary engine shaft and means of connection between a rotary engine shaft and a bearing: The rotary engine of the invention comprises at least a shaft, mounted to rotate with respect to another element of the engine, fixed or rotary, to which it is connected by at least one bearing, it being possible for the engine to operate in at least two different operating speeds,...

20060097590 - Electric machine, in particular a direct current motor: An electric machine, in particular a DC motor having a stator that carries windings which are connected to each other for the control of the machine, each phase of the machine comprising at least one winding, and having a connector device to connect the windings, the connector device having a...

20060097591 - Alternator having driving pulley with end flanges: An alternator for use in an automobile is driven by an internal combustion engine. The alternator includes a pulley that is coupled to a rotating shaft of the engine via a driving belt such as a poly-V belt. Plural pulley grooves to be engaged with the driving belt are formed...

20060097592 - Fluid dynamic pressure bearing and spindle motor: A fluid dynamic pressure bearing having a tapered seal part provided between a sleeve and a housing, from which lubricating liquid is injected and functions as a buffer of the lubricating liquid. An end part of a radial gap between the sleeve and a shaft body is a labyrinth filled...

20060097593 - Alternator directly connected to engine: An alternator is composed of a frame, a rotor rotatably supported in the frame, a stator contained in the frame outside the rotor and other associated components. A front end of the alternator is directly mounted on a mounting surface of an engine having a fairly large size, and a...

20060097594 - Synchronous electrical machine comprising a stator and at least one rotor, and associated control device: The invention relates to a synchronous electric motor comprising a stator (10) and at least one rotor (20) with permanent magnets (21), characterised by an embodiment with Xd>Xq; where Xd is the direct reactance and Xq the quadrature reactance....

20060097595 - Rotor for an electric motor and corresponding electric motor: At least one of the magnetic driving elements (17) comprises a plurality of separate permanent magnets (18), the magnets (18) of the or each magnetic driving element (17) being separated from each other along at least one separation surface which is substantially parallel with the magnetic axis of the or...

20060097596 - Switched reluctance machine: A switched reluctance machine (SRM) having a rotor and stator pole numerical relationship of S number of stator poles and R number of rotor poles, where R=2S−2, when S is greater than 4; provides improved power density, torque production, torque ripple, and acoustic noise, and is readily adaptable to existing...

20060097597 - Method for monitoring electrical insulation on a rotor of an electrical machine: A method for monitoring electrical insulation on a rotor of an electrical machine having in each case one coil which is connected to each end of a rotor winding and in series with therewith. For this purpose, both a magnetic conductor of the rotor, in particular a laminated core, and...

20060097598 - Brushless motor: The invention relates to a brushless DC motor having an at least two-pole permanent magnet rotor and an at least two-pole stator whose poles carry an at least single-strand stator winding which can be energized with a current according to the rotor position by means of an electronic commutation device,...

20060097599 - Permanent magnet type three-phase ac generator: A permanent magnet type three-phase ac generator includes a stator having 3n (n is an integer) teeth and a tree-phase armature winding and a rotor having 4n magnetic poles each of which has a permanent magnet. The three-phase winding includes 3n coils each of which is wound around one of...

20060097600 - Device for improving the protection of a construction unit against electrical corona discharges: A device for improving the protection of a component against surface discharges includes a non-woven substrate made of fibers and configured to be electrically insulating and a coating containing silicon carbide (SiC) disposed on the substrate....

20060097601 - Rotor arrangement for an electric machine and a method for the manufacture of a rotor arrangement: A rotor arrangement for an electric machine having a substantially cylindrical rotor body and a shaft on which the rotor body is mounted, wherein the rotor body is divided into a plurality of substantially identical rotor sections in at least one plane containing the axis of the shaft, and wherein...

20060097602 - Electric motor and electric tool having the motor: An electric motor designed for electric tools. The motor includes a stator core having a first stator core and a second stator core. The motor includes a first molded coil having a first coil covered entirely with a thermosetting resin that is electrically insulating and highly heat conductive. The motor...

20060097604 - Electric motor and motor-driven compressor: An electric motor, which has a stator and a rotor including a permanent magnet, has a guide for guiding movably in an axial direction of the rotor and an actuator which is operable to move the rotor axially. In addition, a motor-driven compressor includes the electric motor for compressing and...

20060097603 - Motor generator and electric motor vehicle: A rotary electric machine is constituted with: a rotary shaft 220; a rotor 40 connected to the rotary shaft 220; a stator 31 placed opposite the rotor 40; a stepping motor 60 serving as an adjusting motor for adjusting the position of the rotor 40 relative to the stator 31...

20060097605 - Rotor of electric rotating machine: Deformation and vibration of claw magnetic poles in rotor are reduced. A rotor includes: a rotor coil 15 for generating a magnetic flux by applying a current; a pole core comprised of a first pole core body 19 and a second pole core body 20 that are disposed so as...

20060097606 - Generator and method of manufacturing same: A generator and a method of manufacturing the generator, which can suppress a lowering of tension of a bind ring caused by an initial deformation during assembly and changes with the lapse of time during long-term operation, and can prevent a lowering of the support function. The generator includes a...

20060097607 - Piezoelectric mechanism for generating discharge voltage: Malfunctions caused by dusts such as sands and the like in movement portions of a spark-voltage generation mechanism are reduced. The generation mechanism comprises an outer-box assembly in which a base piece, piezoelectric element, and anvil are disposed in line with the longitudinal axis, an axis-direction cam groove is formed...

20060091731 - Turbo-machine and method for operating the same: The invention relates to a turbo-machine comprising a rotor, a stator, and a flow channel for an actuating fluid used to drive the rotor. Said turbo-machine comprises a magnet for producing a pre-determinable magnetic field in the flow channel. The invention also relates to a method for operating a turbo-machine...

20060091732 - Coreless ac linear motor and method of producing the same: A coreless AC linear motor including a magnet assembly forming a magnetic gap, and a can, the can further including a coil housing section forming a deep groove. The motor also includes a plurality of coreless coils inserted into the deep groove and arranged in a straight line inside the...

20060091733 - High efficiency voice coil motor: Methods and apparatus for increasing the efficiency of a voice coil motor (VCM) are disclosed. According to one aspect of the present invention, a cylindrical and radially symmetric VCM includes a plurality of sets of magnets, and a single coil. The plurality of sets of the magnets are each arranged...

20060091735 - Linear compressor: Disclosed herein is linear compressor. The linear compressor comprises a cylinder, a piston disposed to linearly reciprocate into the cylinder, and a linear motor provided to linearly reciprocate the piston. The linear motor includes an outer core, a bobbin mounted in the outer core, a coil wound on the bobbin,...

20060091736 - Linear drive apparatus: The conventional linear drive apparatus has the problem that in constructing a linear motor of a multiphase structure by connecting a plurality of armature units, the length of the armature becomes longer in proportion to the number of the phases, thus limiting the locations where the apparatus can be installed....

20060091734 - Single degree of freedom axis positioner: A single degree of freedom positioner resistant to axial and rotational motion on two axes, and to rotation around a third axis, but permitting axial movement along the third axis. The axes are orthogonally related. The positioner is characterized by support of a stage by a plurality of stiffly flexible...

20060091737 - Outer stator for reciprocating motor and manufacturing method thereof: An outer stator of a reciprocating compressor comprises: a bobbin formed as a ring shape and provided with a winding coil therein; an outer stator frame coupled to an outer circumferential surface of the bobbin and formed of a magnetic body in which a flux flows; a plurality of first...

20060091738 - Contractor type actuator: In the contraction type actuator 10, a giant magnetostrictive rod 12 flexibly expands and contracts by controlling the strength of a magnetic field applied by a magnet coil 14. A bias magnet comprises a first bias magnet 16 and a second bias magnet 18. The fist bias magnet 16 in...

20060091739 - Insulated stator with wire routing element: A stator for an electric machine includes stator teeth with powder coat insulation covering a portion of each tooth. An end cap with a routing element is positioned on one side of the stator. Wire extends around and contacts the powder coat insulation on the stator teeth and is routed...

20060091740 - Router heat sink system: A trim router heat sink with a bearing seat and shaft lock that mount to a trim router to act as a heat sink. A shaft extends through the bearing seat and has a shaft lock. The shaft is held on one end by the trim router's motor shaft and...

20060091741 - Turbine generator vibration damper system: The invention relates to the vibration damper systems (here, method and apparatus) for active removal of beyond-normal internal vibrations from turbine-generator-sets [T-G-Ss]. The invention relies on dynamic forces generated by at least a pair (when symmetrically placed) of “wings” or by at least one “wing” (when centrally placed), or combination...

20060091742 - Electroless metallic plating method for leak repair and prevention in liquid-cooled generator stator bars: A method of sealing a stator bar with an interior liquid pass for flow of coolant forming at least a portion of the stator bar, including electroless plating at least a portion of an interior wetted surface of the stator bar....

20060091743 - Compact and efficiently cooled fan motor: A rotor magnet 10 and a stator opposing each other are accommodated in a cylindrical fan boss. Groove-like radial ventilation paths are formed on the rotor magnet and fan boss holes are formed in the axial positions corresponding to those of the outer circumferential side fan boss openings. The rotor...

20060091744 - Self-cooling electric machine: An electric machine having a rotor with a ventilation port and a rotor coupling with at least one air disturber....

20060091745 - Connecting element for a winding of an electric machine: An interconnection element for a multi-phase winding (11) that is comprised of coils (12) and belongs to an electric machine, in particular a brushless mini motor, having a support (20) made of insulating material and conducting strips that are disposed on the support (20) for producing interconnections among the coils...

20060091746 - Three-phase magnetic generator: A terminal plate set has multiple terminal plates and fitting legs. Each terminal plate has a transverse bar portion and a longitudinal bar portion. If the fitting legs of the terminal plate set are press-fit into fitting through holes, terminals of the transverse bar portions are positioned on an axial...

20060091747 - Magnetic sound transducer containing flat vibration motor: A vibration motor and speaker device includes a speaker excitation magnet around a flat brushless vibration motor which acts as a speaker magnetic pole. the vibration motor has a case constituting motor housing that comprises a magnetic body on a lateral periphery, a ceiling portion made of a nonmagnetic body,...

20060091748 - Driving apparatus: The present invention provides a driving apparatus utilizing magnetic force, which is capable of establishing an enhanced level of higher torque, without enlarging the diameters of the drive magnetic wheel and the follower magnetic wheel, or without installing another transmission system branching off the drive shaft. The driving apparatus where...

20060091749 - Motor with single bearing: A motor with single bearing comprises a fan blade set, a motor set and a fan blade base. The fan blade set has a fan blade hub to join with a spindle fitting with a bearing. The motor set is attached to the fan blade base and a hollow axial...

20060091750 - Magnetic suspension bearing with damping system: A magnetic suspension bearing with damping system includes a stator having a stator magnetic unit mounted on the internal portion of the stator, and a rotor rotatably located at the stator. A rotor magnetic unit installed on the rotor corresponding to the stator magnetic. The rotor further has a yoke...

20060091751 - Universal mount alternator housing: An alternator and brackets having cooperating structure for selectively securing the brackets to the alternator such that the brackets are aligned with mounts on the engine for securing the alternator. The slots may have a larger portion and a smaller portion and the brackets may a stem and wings on...

20060091752 - Electric motor and electric compressor: An electric motor includes a stator and a rotor disposed surrounding the stator and being rotatable around the stator. The rotor has a plurality of permanent magnets each of which is movable in a radial direction of the rotor. The radially outward movement of the permanent magnets is urged by...

20060091753 - Permanent magnet synchronous motor: A permanent magnet synchronous motor is of a rotating magnetic field type, and includes a stator which generates a rotating magnetic field, and a rotor having fixed magnetic poles. The rotor includes first and second rotor units arranged axially thereof. The first and second rotor units each have a rotor...

20060091754 - Motor, method for manufacturing field magnet assembly of the same, and washing machine with the same: A motor has a field magnet assembly comprising a plurality of magnets arranged in the circumferential direction of the field magnet assembly such that like polarities face each other, and a plurality of magnet spacers disposed between the magnets, respectively. Consequently, leakage of magnetic flux of the field magnet assembly...

20060091755 - Transverse flux switched reluctance motor and control methods: A variable reluctance motor and methods for control. The motor may include N motor phases, where N equals three or more. Each motor phase may include a coil to generate a magnetic flux, a stator and a rotor. A flux-carrying element for the rotor and/or stator may be made entirely...

20060091756 - High torque repulsion motor: A high torque AC motor of the repulsion type that includes at least four stator poles and an armature with chordally oriented windings. The armature windings are cyclically shorted and opened in groups at appropriate angular positions of the armature by a non-contact switch circuit carried on the armature....

20060091757 - Slot insulator and multiplexed resolver using same: A slot insulator is provided and includes: an annular part; and a plurality of insulated winding parts disposed a circumference of the annular part. Each of the insulated winding parts has an insulated winding holding part and an insertion groove for housing a winding part of a tooth in a...

20060091758 - Helical core and fabricating method thereof: The present invention provides a helical core and fabricating method thereof, by which a material and weight for fabrication of a core are reduced and by which a fabrication process is simplified. The present invention has a multi-layer structure configured by helically winding to stack a steel plate core from...

20060091759 - Motor and armature manufacturing method: An insulator covering the teeth (31) of an armature (3) in an inner-rotor motor is composed of a tooth insulator (321), outer-side insulator (322), upper-end insulator (323), and lower-end insulator (324). The tooth insulator (321) is composed of substantially annular top and bottom members that are assembled from above and...

20060091760 - Multi-phase claw-pole type rotary machine: A two-phase or three-phase claw-pole type rotary machine comprises two or three coaxially arranged single phase rotary machine elements. Each of the rotary machine elements has a magnet rotor, a claw-pole type stator, and an annular stator winding. Claw poles of the stator are divided into a plurality of blocks...

20060091761 - Compact high power alternator: An apparatus for converting between mechanical and electrical energy, particularly suited for use as a compact high power alternator for automotive use and “remove and replace” retrofitting of existing vehicles. The apparatus comprises a rotor with permanent magnets, a stator with a winding, and a cooling system. Mechanisms to prevent...

20060091762 - Electromotive linear drive unit: An electromotive linear drive unit comprising a housing, a motor pot, a connection piece, a power supply cable, a deployable lifting tube, and a fixed flanged tube is designed in such a way that it can be made at a low cost while being easier to assemble than previously known...

20060091763 - Chip-based piezoelectric reasonator and liquid-phase sensor: The present invention relates to a piezoelectric resonator system comprising a plurality of piezoelectric resonator sensors C′, C″. Each sensor C′, C″ comprises an oscillator circuit 29′, 29″ which is surrounded by its own individual conducting shield 44′, 44″. Each shield 44′, 44″ is connectable to one pole of the...

20060091764 - Piezoelectric thin-film resonator and filter using the same: A piezoelectric thin-film resonator includes: a substrate; a lower electrode that is formed on the substrate; a piezoelectric film that is formed on the lower electrode and the substrate; and an upper electrode that is formed on the piezoelectric film, with the piezoelectric film being partially interposed between the lower...

20060091765 - Piezoelectric vibrator, manufacturing method thereof, oscillator, electronic equipment, radio clock: The present invention provides a piezoelectric vibrator which can sufficiently minimize the fluctuation of the oscillation frequency or the resonance resistance value even when a large static external force is applied to a package of the piezoelectric vibrator, a manufacturing method thereof, and an oscillator and an electronic equipment provided...

20060091766 - Multilayer piezoelectric device: Provided is a multilayer piezoelectric device high in reliability and easy in formation of a unit when incorporated into various devices. In a multilayer piezoelectric device, each second external electrode is integrally formed including a main body part electrically and physically connected to a first external electrode, and an extending...