Electrical generator or motor structure inventions 02/06

20060038450 - Dynamoelectric machine having heat pipes embedded in stator core: Thermal management of an electric machine is implemented by selecting a stator core configuration in accordance with an intended machine application and determining the minimum heat dissipation necessary to maintain the temperature of the core segment configuration at peak excitation within acceptable limits is determined. A core model is used...

20060038451 - Small-power electric motor: A small-power electric motor comprising a stationary part and a part which rotates about a shaft, wherein the stationary part has a brush plate with a number of brushes and at least one magnetic field sensor, and wherein the rotating part has collector surfaces assigned to the brushes and at...

20060038452 - Electric motor: An electric motor that includes a stator, a rotor including a rotor shaft and a support member coupled to the stator. A first bearing is at least partially disposed within the support member and a printed circuit board is coupled to the stator. A second bearing is at least partially...

20060038453 - Flywheel system with synchronous reluctance and permanent magnet generators: The present invention provides a flywheel system with a variable speed synchronous reluctance motor-generator and a variable speed permanent magnet generator for providing backup power. The flywheel system incorporates rotating elements supported by electromagnetic bearings. Electric power provided by the backup generator maintains electromagnetic bearing operation during that portion of...

20060038454 - Dc induction electric motor-generator: An electromagnetic apparatus has a rotating element acting as a transfer bridge between two active energetic suppliers, the rotating element providing a ferromagnetic core with plural solenoid coils having induced electric energy from external permanent magnets; the core transferring energy by induction to the inner stator's wound active permanent magnet,...

20060038455 - Finger exercise apparatus: A finger exerciser apparatus has a frame with a wrist end and an opposite finger end. The apparatus may be attached at the wrist end to a user's hand, wrist or forearm with the frame extending beyond and generally in a plane with the user's extended fingers to the finger...

20060038456 - Monopole field electric motor generator: A rotating electromagnetic apparatus has a stator including a stator frame supporting parallel spaced apart, disc-shaped permanent magnet sets. Each of the magnet sets is formed as plural, spaced apart, co-planar magnet segments. The segments are arranged with permanent magnet poles of opposite polarity in an alternating sequence. A rotor...

20060038457 - Permanent magnet motor: To reduce the cogging torque of servomotors, electric power steering motors, and others, there is provided a permanent magnet motor comprising: a rotor 10 comprising a rotor yoke 11 and a plurality of permanent magnets (M1-M10); and a stator 20 comprising a stator yoke 22, salient magnetic poles 21, and...

20060038458 - Permanent magnet rotary motor: There is provided a permanent magnet rotary motor in which manufacture of a stator core is facilitated. The permanent magnet rotary motor includes P rotor magnetic pole sections and N slots. In this permanent magnet rotary motor, a least common multiple LCM (P, N) is set to be different from...

20060038459 - Armature of motor: An armature for use in a motor has a plurality of teeth, a plurality of slots and coils of three kinds of phases. A plurality of the slots is formed between the coadjacent teeth. The coils of three phases are wound around the teeth. The armature has a coil structure,...

20060038460 - Monopole field electric motor-generator with switchable coil configuration: A pair of stators produce a magnetic field within a space between them. a ferromagnetic toroidal rotor is rotationally mounted within the magnetic field. A plurality of windings are wound radially on the rotor and each winding provides a plurality of coils. Each of coils is interconnected through a switch,...

20060038461 - Optimized air core armature: An air core motor-generator has a rotor that is journalled to rotate about an axis of rotation, and a stator that is stationary and magnetically applies torque to the rotor. The rotor has magnetic poles that drive magnetic flux across an armature airgap, and the stator has an air core...

20060038462 - Rotor for a generator, in particular a high-power turbogenerator: A rotor for a generator, in particular a high-power turbogenerator, has slots, which run axially in a rotor body and have conductor bars inserted in them, which are supported radially in the slots by means of wedges and are in each case electrically connected to one another at the ends...

20060038463 - Method and circuit configuration for operating a piezoelectric actuator: A piezoelectric actuator, for instance a piezoelement for driving an injection valve of an internal combustion engine, is discharged from a charge state, in which a first control potential is present on a first piezo-terminal and a second control potential is present on a second piezo-terminal. The discharging operation is...

20060038464 - Piezoelectric/electrostrictive device and method of manufacturing same: A pair of opposing thin plate sections, movable sections, and fixed sections for supporting the thin plate sections and the movable sections are provided on a ceramic substrate. After a wiring pattern and a gap or an insulating layer of cermet layer for filling the gap are formed on a...

20060038465 - Motion activated power source: An electrical generator or motion sensor including a) a pair of elongated L shaped supports (15) fixed at one end but free to move at the other b) a coil (14) secured to the supports remote from the fixed end c) an array of permanent magnets (12) arranged adjacent the...

20060038466 - Piezoelectric transformer, piezoelectric transformer unit, inverter circuit, light emission control device, and liquid crystal display device: A low loss, small scale piezoelectric transformer, suited for a cold cathode tube load, and having a high effective coupling factor, is provided using a piezoelectric plate having a single polarization direction. Controlling the dimensions of the third electrode portion 15a constituting the high impedance portion makes it possible easily...

20060033385 - Linear actuator and pump device and compressor device therewith: A linear actuator includes a driving part having an inner yoke, an outer yoke and a coil for generating an alternating magnetic field and includes a movable body provided with a magnet disposed between the inner yoke and the outer yoke. The movable body is formed in a tubular shape...

20060033386 - Linear motor for use in machine tool: Provided is a linear motor for use in a machine tool having high positioning accuracy. A linear motor 10 for use in a machine tool comprises: a stator 13 comprising a plurality of permanent magnets 12 which are arranged on both faces of a plate-like yoke 11 at equal intervals...

20060033387 - Control device: An electrical control device includes a knitted fabric 11 having a knitted guide portion 12 for accommodating and guiding a cord 41 that may be pulled by its ends to move the cord along the guide portion. Conductive knitted tracking 15 communicates with conductive portions 16 of the guide portion....

20060033388 - Motor/encoder assembly for tape drives: A magnetic/encoder assembly has a compact design and combines the features of motor, encoder and chuck locating feature within a single motor housing. The motor/encoder includes a DC brushless motor with an inner magnetic rotor. The motor windings and the commutation electronics are mounted towards the bottom side of a...

20060033389 - Driving mechanism and micro-mirror device provided with the same: A driving mechanism configured to turn a plate member with respect to a frame member around a predetermined turning axis includes a pair of supporting members supporting the plate member, a pair of actuators provided on both sides with respect to the turning axis and on the same surface side...

20060033390 - Electrical machine comprising brush holder that can be simply positioned and mounting method for electric machine: An electrical machine including a brush holder disposed in a housing with the housing and/or housing cap having an elastic region which enables positioning of the brush holder relative to a commutator from outside the housing. An installation method for installing a brush holder of an electrical machine is also...

20060033391 - Bearing assembly, stage device using same, and exposure apparatus using same: A stage apparatus includes a guide provided with a surface including a magnetic body, a moving body movable along the surface, a gas bearing for supporting the moving body with respect to the surface, and a magnet which is supplied to the moving body and produces a magnetic attractive force...

20060033392 - Polyphasic multi-coil generator: A polyphasic multi-coil generator includes a driveshaft, at least first and second rotors rigidly mounted on the driveshaft so as to simultaneously synchronously rotate with rotation of the driveshaft, and at least one stator sandwiched between the first and second rotors. The stator has an aperture through which the driveshaft...

20060033393 - Polyphasic multi-coil generator: A polyphasic multi-coil generator includes a driveshaft, at least first and second rotors rigidly mounted on the driveshaft so as to simultaneously synchronously rotate with rotation of the driveshaft, and at least one stator sandwiched between the first and second rotors. The stator has an aperture through which the driveshaft...

20060033394 - Sequentially joined-segment coil for rotary electrical machine: A polyphase sequentially joined-segment coil of a rotary electric machine and a production method thereof are provided. The coil is made up of a plurality of conductor segments joined in series. Each of the conductor segments a head projecting from a stator core, a pair of legs, and a pair...

20060033395 - Rotary electric machine: Coils in respective poles are all wound in the same shape. The coils are wound such that one of the winding ends in a predetermined layers, for a single turn, is passes to an adjacent layer, or single turns at the winding ends in a predetermined layer are wound to...

20060033396 - Alternator having a stator core with inclined teeth: An alternator includes a stator having a stator core in which a plurality of slots are formed so as to line up in a circumferential direction on an inner peripheral wall surface, and a stator winding configured such that conducting wires are installed in the slots; and a rotor rotatably...

20060033397 - Stator and resolving method and device thereof: The method for resolving the stator having a coil disposed in the slots provided around an inner circumferential face of a cylindrical iron core and having an opening portion includes a step of enlarging the opening portion of the slot, and a step of extracting the coil from the slot....

20060033398 - Drum commutator for an electric machine: A drum commutator for an electric machine includes a sleeve-shaped support element made of an insulating pressing material, a plurality of metallic conductor segments which are evenly arranged around the support element, and an interference suppression disk which is connected in an electrically conducting manner to the conductor segments in...

20060033399 - Electrically driven power tool: A power tool includes an electric motor (6) located in the tool housing (4) and capable of rotation in both clockwise and counterclockwise directions, a brush carrier (14) carrying at least two brushes (2) that electrically contacts the commutator (12) of the motor (6), an actuation member (26) accessible from...

20060033400 - Four-pole synchronous motor: The four-pole synchronous motor comprises a stator core (23) having first magnetic pole cores (36) formed at both ends of a connection body part (24) of crisscrossed connection body parts (24, 25) and second magnetic pole cores (39) formed at both ends of the connection body part (25). The first...

20060033401 - Armature shaft for an electrical machine: An armature shaft for an electrical machine having a plurality of notches, extending along the circumference of the armature shaft essentially parallel to the longitudinal direction of the armature shaft, which notches form a notching heap. At least the notching heaps form acute angles whereby the imbalance of the armature...

20060033402 - Transport system and dynamo-electric machine: A dynamo-electric machine has a stator with a primary winding and a rotor with a field magnet and a shaft. the field magnet includes a first field magnet having different polarity magnetic poles sequentially arranged in a rotation direction and a second field magnet having different polarity magnetic poles sequentially...

20060033403 - Dust cover for mem components: MEM devices are fabricated with integral dust covers, cover support posts and particle filters for reduced problems relating to particle contamination. In one embodiment, a MEM device (10) includes an electrostatic actuator (12) that drives a movable frame (14), a displacement multiplier (16) for multiplying or amplifying the displacement of...

20060033404 - Piezoelectric member element and liquid discharge head comprising element thereof: A piezoelectric member element including a piezoelectric member layer and a pair of electrode layers sandwiching the piezoelectric member layer, wherein at least three layers, which are directed in a preferential orientation to the (110) plane on the (100) plane of Si, are accumulated and the above described at least...

20060033405 - Apparatus for the transmission of a deflection of an actuator: An apparatus for the transmission of a deflection of an actuator, in particular of a piezoelectric actuator of an injection valve, comprises at least one first lever device which has a first transmission element which transmits the deflection of the actuator. In this case, there is provision for at least...

20060033406 - Methods and apparatus for power generation governmental rights: An apparatus for generating an electrical power upon an acceleration of the apparatus is provided. The apparatus includes: a piezoelectric member having at least a portion thereof formed of a piezoelectric material for generating an output power upon an impact; and a spring element configured to have at least one...

20060028070 - High force density linear electric motor: Linear electric motor or actuator comprising a movable part (21) consisting of a soft-magnetic core (22) which supports a set of electrically conductive turns (25), which movable part is slidably supported by a rail (26) which is provided with at least one set of permanent magnets (27, 30, 31) extending...

20060028071 - Magnetic actuators: A magnetic actuator. A yoke includes a first opening and a second opening, a frame, and a path. A first magnet is disposed in the first opening in the vicinity of the frame. A second magnet is disposed in the second opening in the vicinity of the frame. A coil...

20060028072 - Cylinder-type linear motor and moving part thereof: The present invention provides a cylinder-type linear motor. The motor includes a fixed part including a coil assembly having a plurality of ring-shaped coils arranged in the axial direction to form a cylindrical space, and a yoke member made of a magnetic material, which is provided on the outer periphery...

20060028073 - Electromagnetic operation device: An electromagnetic operation device, comprising electromagnetic operators each paired with a vacuum valve of each phase of three phases, is equipped with main shafts that can operate independently for each phase and a three-phase connecting shaft that synchronizes the operation of the three phases in accordance with the operation of...

20060028074 - Rotor for rotating electric machine: A rotor for a rotating electric machine comprises a rotor core, and a plurality of rotor conductors wound on the rotor core. At least one of the rotor conductors is provided with a cooling groove, and edges of at least one of the cooling grooves are rounded by a radius...

20060028075 - Totally hermetically sealed motor for a vehicle: A stator frame (1) comprises: a housing (1m) whereof a modified tubular body mounted on the outer peripheral surface of a stator core (2) and that is virtually recessed at two locations in the direction of the rotary axis of a rotor; a cooling section (1n) that is integrally formed...

20060028076 - Capacitor motor with terminal arrangement: A terminal arrangement of a motor has a terminal base formed with a plurality of terminal pins, the terminal base being fixed detachably on a stator iron core of a motor, terminal pins formed on bobbins, connected electrically with windings wound around the bobbins, a printed circuit board arranged on...

20060028077 - Flat vibration brushless motor: An eccentric rotor rotatably accommodated via a shaft in a housing at least one part of which is made nonmagnetic or weakly magnetic comprises a rotor case, an axial air-gap magnet held in the rotor case, a nonmagnetic eccentric weight fixed on the rotor case outward of the magnet, and...

20060028078 - Small motor: A small motor including a rotor, a stator, a bearing member which supports the rotor shaft in the radial and thrust direction and a bearing holding member which holds the bearing member. The bearing holding member is formed in a thin plate-shaped elastic member and includes a bearing holding part...

20060028079 - Backup battery charging circuit: An object of the invention is to provide a backup battery charging circuit capable of continuing to charge a backup battery to the limit of the voltage drop of a main battery so as to reduce the possibility of data disappearance to an achievable extent. For this purpose, a backup...

20060028080 - Apparatus and process for generating energy: Energy is generated by an apparatus and process which utilize magnetic forces to move a rotor in a circular direction to turn a rotor shaft. This apparatus and process convert magnetic energy into mechanical force or electrical energy....

20060028081 - Axial gap electric motor: First and second stators are arranged on mutually spaced positions of an imaginary common axis, and first and second rotors are coaxially and rotatably arranged on mutually spaced positions of the imaginary common axis between the first and second stators....

20060028082 - Interior permanent magnet electric rotating machine: An interior permanent magnet electric rotating machine is configured such that either at least one of first intervals between first flux direction regulation portions of a plurality of first flux barriers provided in a rotor core of the machine or at least one of second intervals between second flux direction...

20060028083 - Permanent magnet rotor for a direct drive generator or a low speed motor: In order to provide a less expensive generator, a rotor using nonmagnetic beams is disclosed. The rotor includes a magnetic steel rim connected to a main generator shaft by a hub. The magnetic rim supports the components of the rotor, which includes a plurality of magnets and pole pieces. The...

20060028084 - Hybrid-secondary uncluttered permanent magnet machine and method: An electric machine (40) has a stator (43), a permanent magnet rotor (38) with permanent magnets (39) and a magnetic coupling uncluttered rotor (46) for inducing a slip energy current in secondary coils (47). A dc flux can be produced in the uncluttered rotor when the secondary coils are fed...

20060028085 - Superconducting rotating machines with stationary field coils: A machine includes a rotatable rotor assembly having a number of salient poles. The machine further includes a stationary stator assembly having concentric inner and outer stators, at least one stationary superconducting field coil and at least one stator coil. The stationary superconducting field coil is disposed between the inner...

20060028086 - Armature windings and dynamo-electric machine using the same: An armature winding includes a plurality of strand groups each having strands transposed and bound in at least two rows and multiple tiers, and a main insulator for covering the strand group. A flow resistance of a current passing though the strands on an upper and a lower side in...

20060028087 - Electric motor having a stator: An electric motor stator including a yoke having a plurality of yoke laminations. A body portion is formed as part of each of the plurality of yoke laminations. A first tooth is continuous with the body portion and is formed as part of at least a portion of the plurality...

20060028088 - Bearing support for motors: A motor mounting and a motor configured for simplified assembly. The motor mounting is configured for including a bearing, the bearing for receiving a rotor shaft therein. The motor mounting is configured to accept a brush assembly received from an exterior surface. The brush assembly and motor mounting may be...

20060028091 - Dc motor with externally mounted carbon brush: This invention discloses a DC motor with externally mounted carbon brushes, comprising a front end cover, a housing, magnet, a rotor, a commutator and a back end cover, characterized in that the outer wall of the back end cover is provided with two mounting holes for brush brackets which are...

20060028090 - Motor: A motor 11 is used for an electric power steering apparatus or the like. A power supply section 31 from which a wire harness 33 electrically connected to a brush 23 is led along the axial direction of an output shaft 12 is provided on an end surface 25a of...

20060028089 - Power tool: A power tool has an electric motor, a brush element that is supported rotatably for switchover between clockwise operation and counterclockwise operation of the electric motor and includes a brush holder, and a switch unit, embodied separately from the brush element and connected in form-locking fashion to the brush element,...

20060028092 - End cap for segmented stator: A stator for an electromagnetic machine includes a plurality of discrete and individually wound stator segments having end caps positioned on the segments. The end caps have legs for positioning the end cap on the segments with an interference fit. The end caps have angled surfaces to facilitate winding of...

20060028093 - Axial-gap dynamo-electric machine: A stator for use in an axial-gap dynamo-electric machine. The stator core may be fabricated from a plurality of stator core elements each of which may be arranged to form teeth portions on a rotor side of the stator core elements and which also form back portions on a base...

20060028094 - Apparatus comprising an array of tightly spaced rotatable optical elements with two axes of rotation: In one embodiment, a rotatable element includes a plate, a plate support, a cradle, and a cradle support. The plate is coupled to the cradle via the plate support. The cradle is coupled to a surrounding frame by the cradle support. The plate and cradle are suspended over a cavity...

20060028095 - Piezoelectric composite device, method of manufacturing same, method of controlling same, input-output device, and electronic device: Disclosed herein is a piezoelectric composite device including: a feeding electrode; a common electrode; a signal detecting electrode; a first piezoelectric element joined between the feeding electrode and the common electrode; and a second piezoelectric element joined between the common electrode and the signal detecting electrode; a predetermined voltage being...

20060028096 - Evaluation method for coefficient of thermal expansion of ultra-low-expansion glass material: By measuring, for an ultra-low-expansion glass material, the frequency dependence of acoustic velocities and attenuation coefficients of bulk waves (longitudinal waves and shear waves), and the density, its fundamental acoustic properties are revealed, and a standard specimen for use in system calibration is prepared. By an absolute calibration method using...

20060028098 - Micro position-control system: A micro position-control system capable of more precisely controlling three degree-of-freedom motions, namely, a Z-direction motion and X-axis and Y-axis rotations. The micro position-control system includes a base including a plurality of base units disposed at equal angles from the center of a motion stage, holding piezo actuators parallel to...

20060028097 - Piezoelectric loudspeaker: A piezoelectric loudspeaker includes a diaphragm and a piezoelectric element bonded on a principal surface of the diaphragm. An electrode layer is provided on the surface of the piezoelectric element. The piezoelectric element has a structure formed by alternately laminating at least three piezoelectric layers and electrode layers in order...

20060028099 - Composite acoustic matching layer: A matching layer is formed as a composite, such as a 2-2 or a 1-3 composite. The base material forms some portion, such as 5 or more percentage by volume, of the composite matching layer and volume. The in-fill, bonding or acoustically isolating material holds the sections of base material...

20060028100 - Piezoelectric structure, liquid ejecting head and manufacturing method therefor: A piezoelectric structure includes a vibrational plate; a piezoelectric film; the vibrational plate including a layer of a monocrystal material, a polycrystal material, a monocrystal material doped with an element which is different from an element constituting the monocrystal material, or a polycrystal material doped with an element which is...

20060028101 - Driver using electromechanical energy transducer: A driver includes an electromechanical energy transducer deformed by applying and removing voltage, a supporting member having the electromechanical energy transducer joined thereto for transmitting movement of the electromechanical energy transducer resulting from the deformation to the supporting member, and a movable body disposed in an inner peripheral portion of...

20060022528 - Motor cooling system: The invention provides a structural member for a vehicle transmission formed with an annular recess in fluid communication with a fluid source and at least partially enclosing and defining an interior space of the transmission. An interior component, such as a motor/generator, is located in the interior space. The annular...

20060022529 - Cooling fan with electric motor: The invention relates to a cooling fan for use in a motor vehicle. To achieve improved cooling of an electric motor it is proposed that the motor housing enclosing the electric motor be used as a heat sink for emitting waste heat into a cooling air flow. The cooling air...

20060022530 - Internal ventilation fan for brushless motor: A brushless motor includes stationary windings 16. A magnet assembly 24 has permanent magnets 24 associated with the windings 16 so that a magnetic field generated by the windings 16 causes rotation of the magnet assembly 14. The magnet assembly 24 defines a fan hub 26. Fan blades 28 are...

20060022531 - Encoder unit and process of assembling same: An encoder unit releasably secured to the flange end of a motor with a form-fitting and positive connection comprises an encoder housing with guide grooves for receiving a printed circuit board (PCB), a recess for receiving the motor shaft, and at least one moveable side wall. A timing disc and...

20060022532 - Marked hub for sensing motor speed: A motor hub is disclosed. The motor hub comprises a housing for a motor. The housing is rotatable around an axis of rotation of the motor. The motor hub also has marks arranged on a surface of the housing, and spaces between the marks. The marks and spaces form a...

20060022533 - Method and apparatus to suppress electrical noise in a rotor assembly for an electrical machine: A dynamoelectric machine includes a rotor having a rotor shaft; two flux carrying segments rotatably disposed on the rotor shaft; a field coil disposed between the two flux carrying segments, the field coil having a pair of coil leads; an insulative member disposed at one end of the shaft; a...

20060022534 - Motor diagnostic indicator: A motor receiving power from a power source. The motor comprises a motor housing, a stator at least partially disposed within the motor housing and supported by the motor housing, a rotor disposed to magnetically interact with the stator, and a visual indicator integrated with the housing....

20060022537 - Axial-air-gap brushless vibration motor containing drive circuit: An axial-air-gap brushless vibration motor has an eccentric ro or R in which an axial-air-gap magnet and an arched weight are provided in a rotor yoke which is rotatably mounted on a shaft fixed to a yoke bracket. A stator base is attached to the yoke bracket which includes a...

20060022535 - Deflection limiter for vibrator motor shaft: A deflection limiting member (110, 310) or a deflection limiting mechanism (512, 514) is used to limit deflection of a motor shaft (102) of a vibrator (105, 305, 505) in a portable electronic device (104,304, 504). The deflection limiting member (110, 310) extends in a radial direction from the motor...

20060022536 - Tactile panel: A tactile panel includes a vibration panel, a yoke provided to face the vibration panel, drive coils secured on a circumference of the vibration panel, and a set of permanent magnets arranged between the vibration panel and the yoke. The vibration panel is held by panel holding members, into which...

20060022538 - Ring-spinning system for making yarn having a magnetically-elevated ring: A ring-spinning system for making yarn characterized in part by the replacement of the ring traveler configuration with only one rotating, floating ring that has an eye on its inner middle surface. This rotating, floating ring with the eye thereon performs the functions previously performed by the ring traveler configuration...

20060022539 - Structural support member for stator retention and method of assembling an electromechanical transmission: An electromechanical transmission includes a motor/generator having a stator and a rotor and including a structural support member that supports the stator in fixed relation thereto and the rotor in rotational relation thereto. By supporting both the stator and the rotor, the structural support member substantially controls a spatial relationship...

20060022540 - Magnet wheel of an internal combustion engine: A magnet wheel (1) for an internal combustion engine, especially a drive motor (2) for a portable handheld work apparatus includes a hub (4) for fixing to a shaft (5) of the drive motor (2) and a magnet carrier (6) having at least one magnet holder (7) provided peripherally on...

20060022541 - Rotor hub and assembly for a permanent magnet power electric machine: A rotor assembly for use in an electric motor or generator where the mass of the rotor assembly is reduced with respect to conventional rotor assemblies. In addition, the rotor assembly is configured to be scalable to different sized electric motors. Within the rotor assembly, the rotor hub, the shaft,...

20060022542 - Switched reluctance motor: A switched reluctance motor includes: a stator including a cylindrical body, a plurality of salient poles coupled to an inner circumferential surface of the cylindrical body and provided with a winding coil, and an exterior member formed as a cylindrical shape by encompassing an assembly formed by coupling of the...

20060022545 - Magneto generator: A rise in temperature of magneto coils can be suppressed, thereby improving the electrical efficiency, service life and reliability thereof. A flywheel (3) has a cylindrical portion (4), and is rotatable about an axis of rotation A-A. A plurality of magnets (7) are mounted on an inner peripheral surface of...

20060022544 - Stator and brushless motor: The invention provides a technique of facilitating a coil winding work by continuously winding coils in the same direction, in a stator in which a plurality of coils constituting a coil group of the same phase are respectively arranged so as to include positions at which phases of induction voltage...

20060022543 - Stator of brushless motor brushless motor having same, and coil structure: A brushless motor stator comprising a lamination body in which conductive layers 1 B and insulating layers 1 A are formed alternately. A plurality of sets of coils 12 of wound conductive patterns are formed on each conductive layer and the coils of the conductive layers adjoined via the insulating...

20060022546 - Electromagnetic actuator: An electromagnetic actuator includes a fixed core supported by a bottom wall of a housing, a movable core arranged opposite to the fixed core via an air gap to drive the movable member, and coil assembly supported by the housing to surround both the cores, wherein the movable member and...

20060022547 - Method and device for producing a coil winding for stators or rotors of electric machines as well as a stator or rotor produced therewith: A method for producing a coil winding for stators is described, in which each coil turn rests, with one fillet (14) each, in two stator slots, and the two fillets (14) are joined by a head portion (16). A plurality of coil turns are made simultaneously by winding up n...

20060022548 - Stator assembly of drum motor, and head drum assembly of magnetic recording/reproducing apparatus: A stator assembly of a motor for a head drum is provided to generate a driving force disposed opposite to a motor rotor. The stator motor includes a double sided flexible printed circuit (FPC). A signal line is formed in a pattern is formed on both sides of the flexible...

20060022549 - Motor stator and motor: Motor stator in which a plurality of first guide grooves (321) and second guide grooves (322) that govern the winding position of conductors are formed on the upper end portion and lower end portion of insulators (32) which cover each of the stator teeth (31). The inclination of the first...

20060022550 - Motor stator and motor: A motor stator in one implementation includes a plurality of teeth disposed in a radial form centered about a predetermined center axis, insulators covering the plurality of teeth, and a plurality of coils provided on each of said plurality of teeth by winding conductors onto said insulators through to multiple...

20060022551 - Stator for electrical motor: A stator (1) includes a stator core (10), an insulating member (14) attached to the stator core, and a printed circuit board (18) attached to the insulating member. The stator core includes a center portion (102). Pole members (104) extend outwardly from the center portion. The insulating member includes a...

20060022552 - Multi-phase a.c. vehicle motor: A multi-phase A.C. vehicle motor having one or more disk rotor assemblies and pairs of stator sub-assemblies. Each disk rotor assembly has a disk and a plurality of permanent magnets distributed along one or more circular paths in the disk inboard of the peripheral edge of the rotor. Each stator...

20060022553 - Rotating electric machine: In an axial gap type rotating electric machine, a rotor (23) is arranged in an axial direction of the rotating electric machine and includes a plurality of permanent magnets magnetized in a circumferential direction of the rotating electric machine with respect to a revolution axis thereof and magnetized in a...

20060022554 - Method for operating a fuel injection device, especially for a motor vehicle: A method for operating a fuel injection device, particularly of a motor vehicle. The fuel injection device is provided with an injection valve which has a piezoelectric element. In using the method, the piezoelectric element is activated in such a way that the injection valve goes over into an opened...

20060022555 - Energy harvesting system, apparatus and method: An energy harvesting device, system and method are described. The energy harvester collects acoustic energy and transforms it into electrical energy for use by a sensor. The energy harvester utilizes a piezoelectric device, which may be encased, either wholly or partially, within an acoustic chamber. Alternatively, the piezoelectric device may...

20060022556 - Quartz resonator package having a housing with thermally coupled internal heating element: A resonator package includes a quartz resonator and a heating element within a sealed housing, wherein the heating element is thermally coupled to an external wall of the housing. The heated external wall of the housing is thermally coupled to a substrate to heat a local region of the substrate....

20060022557 - Surface mounted crystal unit: A surface mounting base for an oscillator that is provided with: an insulation base comprising a casing wall having a through hole; a sealing glass that is filled into the through hole and forms a space part on one principal surface side of the insulation base; and a J lead...

20060022558 - External electrode on a piezoceramic multi-layer actuator: In external electrodes on piezoceramic multi-layer actuators, high tensile stresses act during operation on the insulating region below the base metallic coating. Problems are caused by the linking of the electrode with a conductive connection, via which the electric voltage is to be supplied. The soldering or welding process reinforces...