Electrical generator or motor structure inventions 01/06

20060017331 - Cooling system for linear motors: The present application is directed to a linear motor and includes a first mounting plate having an interior face disposing one or more magnetic elements thereon, a second mounting plate having an interior face disposing one or more magnetic elements thereon, a cooling element positioned between the interior faces of...

20060017330 - Water cooled high precision z-theta stage: A high precision z-theta stage having a horizontal translation axis (z-axis) and a rotary axis (theta-axis) parallel with the translation axis comprises parallel spaced apart linear translation stages, a carriage supported between the parallel translation stages, and a rotation stage carried by the carriage between the parallel translation stages. Each...

20060017332 - Reciprocating motor and reciprocating compressor having the same: Disclosed are a reciprocating motor and a reciprocating compressor having the same. The reciprocating motor comprises: an outer stator; an inner stator arranged at an inner circumferential surface of the outer stator with an air gap and at which a winding coil is wound; and a magnet arranged between the...

20060017333 - Optical scanner: An optical scanner comprising stators spaced apart from each other but ferromagnetically coupled together; a magnet positioned relative to the stators such that axis of symmetry of a magnetic field created by the magnet is substantially equidistant from and passes in between ends of the stators; and a flexure element...

20060017334 - Electrical machine having centrally disposed stator: An internal combustion engine has a liquid-cooled electrical machine mounted thereon. The liquid-cooled electrical machine includes a centrally disposed stator having stator windings. A rotor is mounted on a rotatable member for rotation therewith. The rotor extends about the stator. A cooling chamber is disposed within the stator and has...

20060017335 - Dynamoelectric machine with embedded heat exchanger: A dynamoelectric machine, having a stator and rotor, is enclosed in a sealed housing. An impeller fixed to the rotor shaft creates air circulation through the housing and machine components for contact with one or more sealed containers of a coolant medium. The sealed container provides heat transfer from the...

20060017336 - Electric machine with improved temperature monitoring system: An electric machine includes a heat-generating machine component, and a temperature radiation detector for contactless determination and/or measurement of heat radiating from the machine component for ascertaining an absolute and current temperature of the machine component. In this way, the electric machine can be operated at maximum power, without experience...

20060017337 - Rectifier with extended stator lead connector used for charging system alternator: A rectifier for a 3G, 6G series alternator includes circular configured negative heat sink and an arcuate configured positive heat sink secured to the negative heart sink and separated by an insulator. A plurality of negative and positive diodes is received at each of the respective negative and positive heat...

20060017338 - Apparatus and method for producing mechanical work: Improved energy conversion devices comprise a first magnet, a second magnet oriented such that similar poles of the first magnet and the second magnet can be positioned proximate each other, and a mechanical element connected to the first magnet such that movement of the first magnet can actuate the mechanical...

20060017339 - Brushless canned motor: The present invention provides a means for constructing a brushless canned motor that is compact enough to be suitable for use in small appliances, such as electronic devices. The rotating parts of the motor are encapsulated within a can such that the motor can be hermetically connected to a driven...

20060017340 - Magnetic bearing control device: A magnetic bearing control device includes a rotation speed sensor for detecting a rotational speed of a rotating member supported on an axial magnetic bearing and a radial magnetic bearing without contact, and a displacement sensor for detecting an axial displacement of the rotating member. A control unit outputs a...

20060017341 - Arrangement with an electric motor: An arrangement with an electric motor facilitates mounting of the motor, particularly of a miniature or subminiature motor. The motor (20) has a stator (56), a rotor (24), and a support flange (36) coupled to the motor. A motor mount (22) is formed with an opening (94) for engagement with...

20060017342 - Rotor and compressor having the same: A compressor having a rotor. The rotor comprises a core formed as a plurality of laminates are vertically stacked one above another and magnets provided on the outer circumference of the core. Hooks are integrally formed on the outer circumference of the core between the respective magnets in order to...

20060017343 - Brushless motor: A brushless motor is capable of increasing output torque while suppressing an increase in iron loss. A plurality of magnets are magnetized in reverse radial orientation in such a manner that magnetic fields directed toward a stator converge toward the stator, and each of the magnets is provided at opposite...

20060017344 - Rotating electric machine: A rotating electric machine comprises a stator having stator salient poles, three-phases windings wound around the stator salient poles, a rotor rotatable held inside the stator, and permanent magnets inserted into the rotor and positioned opposite to the stator salient poles. Three-phase windings, which are concentratively wound around each of...

20060017346 - Driving apparatus: A rotating electric machine comprises a stator having stator salient poles, three-phases windings wound around said stator salient poles, a rotor rotatable held inside the said stator, and permanent magnets inserted into said rotor and positioned opposite to said stator salient poles. The three-phase windings are concentratively wound around each...

20060017345 - Synchronous electric motor: A synchronous electric motor including a rotor having a rotation axis, and a stator surrounding the rotor through a gap. The rotor includes a rotor core having an outer circumferential surface extending about the rotation axis and a plurality of permanent magnets attached to the rotor core to form plural...

20060017347 - Motor stator having transposed winding layers: An electric motor is provided with a multi-layered winding stator core configuration. A plurality of individual layers of wire strands are successively formed on each stator pole of a pole pair. Each winding layer is fabricated of the same relatively thin wire gauge. A first layer is applied directly on...

20060017348 - Electrical contact member: There is provided an electrical contact member where wear can be reduced. The electrical contact member is characterized by one or both of conductive metal particles and conductive metal fibers, at least outer circumferential surfaces of which have been modified with carbon nanofibers or carbon nanotubes, being disposed in a...

20060017349 - Temperature compensating insert and integral thermal compensation for a smart material actuator: An apparatus can have a smart material actuator, a support structure and at least one temperature compensating material insert, either externally mounted to the support structure, integrally formed with the support structure, or any combination thereof. The structure of the apparatus can be formed of various materials with different Coefficient...

20060017351 - Piezoelectric device, droplet jetting device using the same, and image output device: A piezoelectric device includes a flexible substrate and a piezoelectric element including a pair of electrodes each positioned on the flexible substrate. A switching element is connected to one of the pair of electrodes, in the flexible substrate, and a common line is connected to the other of the pair...

20060017350 - Piezoelectric element driving circuit and remote controller using the same: A piezoelectric element driving circuit includes a piezoelectric element, a switching element, and a coil. The piezoelectric element generates at least one of sound and vibration. The switching element turns on/off the application of a voltage to the piezoelectric element at regular intervals. The coil is connected in parallel with...

20060017352 - Thin device and method of fabrication: A method of fabricating air-bridge type FBAR devices provides for a piezoelectric material sandwiched between two electrodes with an air/crystal interface on each electrode to trap sound waves within the film structure. Copper is used as a sacrificial material deposited in cavities in the substrate. Following deposition of the electrodes...

20060017353 - Piezoelectric power generation device and piezoelectric ceramics member used therefor: In a piezoelectric power generation device and a piezoelectric ceramics member used in the device excellent in its power generation efficiency in which the polarization of piezoelectric ceramics elements is set to the same direction and an extremely thin metallic electrode is sandwiched in between the piezoelectric ceramics elements so...

20060012251 - Linear motor for use in machine tool: The invention is a linear motor that improves the processing speed of machine tools and is also a linear motor that can improve the thrust in order to achieve high acceleration. More specifically, the invention is a linear motor for use in a machine tool comprising linear motor units, each...

20060012252 - Linear motor for use in machine tool: The invention is a linear motor that improves the processing speed of machine tools is also a linear motor with significantly reduced cogging force, with which high-speed and high-accuracy processing can be realized. More specifically, the invention is a linear motor for use in a machine tool comprising a stator...

20060012254 - Finned rear housing for alternator: An electric machine of the present application comprises a generally cylindrically-shaped main housing and a fan extending from a rear end of the main housing. A rear housing is mounted onto the rear end of the main housing and encloses the fan. The rear housing includes a rear plate having...

20060012255 - Heat dissipation fan: A heat dissipation fan includes a rotor (1) having a hub (10) with a permanent magnet (104) attached to an inner surface thereof, a stator (2) and a fan frame (3) having a bearing seat (36). The bearing seat (36) includes a base (361) and a central tube (362) around...

20060012253 - Internal ventilating system for a rotating electrical machine such as a motor vehicle alternator: The invention concerns a rotating electrical machine, comprising inside a housing, a fixedly mounted stator and a rotor rotatably mounted in the stator, the ventilating system including in particular at least one ventilator integral with the rotor and capable of generating a cooling air stream inside the housing, radial air...

20060012256 - Electric fan for vehicle use: The cooling air introducing port 24 is open to a lower portion of an axial direction end portion of the motor housing member 11, 12, the water-proof cover 25 for covering the cooling air introducing port 24 is attached to the outside of the axial direction end portion of the...

20060012257 - Small electric motor and housing: An additional housing is flanged onto the motor housing of a small electric motor, in particular a motor for the automation of a door, which motor has a flanged-on gear-unit housing, wherein the additional housing is flanged onto the motor housing in the longitudinal direction of the motor and has...

20060012258 - Device to relieve thrust load in a rotor-bearing system using permanent magnets: The present invention provides a device and a method to enhance thrust load capacity in a rotor-bearing system. The load-enhancing device comprises a stator and a rotor arranged in such as way as to achieve a magnetic thrust load capacity enhancement by employing a number of permanent magnets, which produce...

20060012259 - Ac induction motor having multiple poles and increased stator/rotor gap: There is provided an electric motor having a flat form factor. The electric motor has a rotor with a shaft attached thereto. The rotor further includes a plurality of teeth disposed thereon. The motor further includes a stator having an axial length. A plurality of teeth are disposed on the...

20060012260 - Stator for electric machines: The stator for electrical machines has stator slots that are open radially inward, at least some of which contain coils made from round wire and have side walls (10, 12) of equal length that each extend parallel to their center radial plane. To attain an especially high fill factor, the...

20060012261 - Stator for electrical motor: A stator (1) includes a stator core (10) and an insulating member (12) attached to the stator core. The stator core includes a first engaging structure. The insulating member includes portions to cover the stator core, thereby insulating the stator core from stator coils, and a first engaging structure other...

20060012262 - Electric power steering apparatus: The electric power steering apparatus includes a brushless motor as an electric motor. The motor has a rotor and a stator 34. The stator 34 includes: a back core BY; a plurality of teeth TS disposed along the circumference of the back core protruding from the back core BY toward...

20060012263 - Axial field electric machine: An axial field electric machine having an improved efficiency includes a number of magnetic elements (e.g., as a rotor) as annular disks magnetized to provide multiple sector-shaped poles. Each sector has a polarity opposite that of an adjacent sector, and each sector is polarized through the thickness of the disk....

20060012264 - Electrical energy generator device with micro-fan array: An electrical energy generator device comprising an array of micro-fans each associated to a respective dynamo-electric generator by means of a respective connecting shaft, further comprises, for at least some of the micro-fans (3), a lug element (6) associated to the respective connecting shaft (4) which mechanically co-operates at each...

20060012265 - Operating method for a hydraulic injection valve comprising a piezoelectric actuator and a control unit: The invention relates to a method and a control unit for operating a hydraulic injection valve, which comprises at least one piezoelectric actuator (2), a displaceable component (3) and a hydraulic element (9) such as bearing or a transmission system. The use of a drive voltage (U) modifies the length...

20060012266 - Actuator: An actuator includes a piezoelectric stack within a housing that applies a compressive load to the stack. The housing may include a cylindrical tube closed at one end and may seal the stack against fluid pressure. The housing may be shorter than the length of the piezoelectric stack and may...

20060012268 - Piezoelectric blade anchoring structure: A piezoelectric blade anchoring structure includes piezoelectric blades mounting onto a circuit board. The piezoelectric blade has electric contacts to connect electrically with conductive members located on the circuit board. A protection plate is provided to keep the conductive member in contact with the electric contact in normal conditions to...

20060012267 - Piezoelectric blade protection structure: A piezoelectric blade protection structure for a plurality of juxtaposed piezoelectric blades mounting onto a circuit board to provide protection and anchoring effect for the piezoelectric blades. A protection member is mounted onto the vibration nodes of the piezoelectric blades to prevent the piezoelectric blades from broken by improper impact...

20060012269 - Quartz crystal unit and holding structure for same: A crystal unit includes: a crystal blank in which a depression which function as a vibration region is formed; first and second excitation electrodes formed on both principle surfaces, respectively, of the crystal blank in the vibration region; first and second extending electrodes provided so as to extend from the...

20060012271 - Fluid ejection device with micro-electromechanical fluid ejection actuators: A fluid ejection device includes a substrate that defines a plurality of fluid inlets. A drive circuitry layer is positioned on the substrate. Elongate micro-electromechanical actuators are each fast at a first end to the substrate to be connected to the drive circuitry and are configured to be displaced away...

20060012270 - Piezoelectric crystal elements of shear mode and process for the preparation thereof: Piezoelectric crystal elements are provided having preferred cut directions that optimize the shear mode piezoelectric properties. In the discovered cut directions, the crystal elements have super-high piezoelectric performance with d15, d24 and d36 shear modes at room temperature. The d15 shear mode crystal gives a maximum d value and is...

20060006743 - Linear driving device: A linear driving device that reduces a cogging force with a simple structure as opposed to a drive mechanism having an existing structure, deals with a plurality of cogging waveforms having different periods, and suppresses not only the cogging force but also pitching that is vertical oscillation. The device has...

20060006744 - Ac motor and control device therefor: A rotor, which is rotatable about a rotor shaft, comprises N poles and S poles alternately disposed in the circumferential direction, and rotor-side neutral poles disposed adjacent to the N poles and the S poles along the axial direction of the rotor, being magnetically connected to their back yoke. A...

20060006746 - Brushless motor: In a separation preventing mechanism used in a brushless motor, an insertion section is formed into a separation preventing member (5) using resin, which has a form difficult to shape with a metal pressed part, and to which a latching member (4) can be inserted by combining rotation and shaft-direction...

20060006745 - Integrated blower for cooling device: An integrated blower for cooling device comprises an electric drive with at least one set of a flat stator and a magnetized rotor, a casing with an inlet and an outlet, and radial impeller. The flat stator integrated with the casing thus the flat stator serves as at least a...

20060006747 - Brushless motor: A drive/control circuit integrated brushless motor is provided that has high rotating precision, satisfactory noise resistance and high output, and is suited to be smaller to save as much space as possible. The motor is a brushless motor provided with circuit integrated core with an FG pattern formed uniformly along...

20060006748 - Induction motor with integrated sensor: An induction motor comprises a stator (10) and a rotor (20), which includes material essentially blocking magnetic flux at high frequencies. A difference in number of stator slots and rotor slots is chosen so that the inductance of a winding provided in a stator slot is different from the inductance...

20060006749 - Controller for electric power steering and electric power steering system: An electric power steering drive system provided with a motor with its torque pulsation reduced, and a controller characterized by excellent manufacturability. The stator core of a motor is composed of an annular back core and a plurality of teeth created separately from the back core and secured on the...

20060006750 - Motor: The present invention aims at providing a motor which can stably be mounted on a circuit board when being assembled into an instrument in particular. The motor 1 in accordance with the present invention comprises a motor body A, an output shaft 3 projecting from a front end of the...

20060006751 - Magnetic brake for window covering powered by dc motor: A braking magnet is attached to the housing of a motor of a motorized component such as a window covering. With this structure the motor is braked from turning under the weight of the window covering when deenergized....

20060006752 - Low-abrasion rotating structure: A low-abrasion rotating structure includes a stator set, a rotor set, and a rotating shaft. A stator hole is defined at a center of the stator set. A rotor hole is defined at a center of the rotor set. The rotating shaft is disposed in both the stator hole and...

20060006754 - D.c. brushless motor: A permanent magnet rotor for a dc brushless motor generally comprised of a non-insulated shaft and and a permanent magnet is formed in one embodiment by compacting a powdered permanent magnet material substantially about a non-insulated shaft of relatively incompressible material utilizing dynamic magnetic compaction (DMC) techniques. In other embodiements,...

20060006753 - Motor: Motors for fans are provided. The motor includes a stator and a rotor. The stator includes a plurality of magnetic poles. The rotor is coupled to the stator and includes a magnetic structure with a plurality of magnetic poles. Each magnetic pole has an interpolar portion. A uniform gap is...

20060006757 - High-voltage electric rotating machine: The present invention relates an electric rotating machine comprising a plurality of phase coils each composed of a plurality of partial coils each made by connecting segments each composed of an inside-slot conductor portion to be accommodated in each of slots of each of phase slot groups made in a...

20060006756 - Rotary electric machine: In a vehicular alternator, a stator is arranged to oppose a rotor in a housing. The stator includes a stator core, which forms a plurality of slots extending in an axial direction of the stator core, and a stator winding wound around the stator core. The stator winding includes electric...

20060006755 - Rotating asynchronous converter: A rotating asynchronous converter and a generator device having a first stator connected to a first AC network with a first frequency f1, and a second stator connected to a second AC network with a second frequency f2. The converter has a rotor which rotates in dependence of the first...

20060006758 - Bobbin for armature of rotary electrical machine: An insulator for an armature wherein the insulator is formed with a slot at one end of the teeth on which the coils are wound to trap the end coil to prevent its axial slippage as the coil end is drawn out....

20060006759 - Electret actuator: An electret actuator comprising a fixed substrate having driving electrodes of a plurality of phases arranged therein, a movable element arranged on the fixed substrate and made electret in similar polarity at predetermined pitches in portions which face the driving electrodes, and a driving control section configured to generate driving...

20060006760 - Surface acoustic wave device, its manufacturing method, and electronic circuit device: A surface acoustic wave device which occupies a small mounting area and has a low profile, yet having an improved reliability, and can be made available at low cost. The surface acoustic wave device comprises a piezoelectric substrate, a function region formed of comb-like electrodes for exciting surface acoustic wave...

20060006762 - Drive method for piezoelectric actuator, drive apparatus for piezoelectric actuator, electronic device, control program for drive apparatus for piezoelectric actuator, and recording medium: The frequency of a drive signal supplied to a piezoelectric actuator 91 is swept within a specific range, the consumption current of the piezoelectric actuator 91 is determined, and when the consumption current is equal to or greater than a reference value, the frequency of the drive signal supplied to...

20060006761 - Ultrasonic process and apparatus with programmable sweep frequency: An ultrasonic generator includes a user interface adapted for a user to specify parameters that define a frequency range and a sweep rate for the driving signal, a programmable memory coupled to the user interface for storing the frequency range and sweep rate parameters, and an output circuit responsive to...

20060006764 - Piezoelectric motors and motor driving configurations: A piezoelectric motor comprising: a piezoelectric vibrator having an axis of symmetry and a first vibration mode, which when excited generates oscillatory motion of mass points in the vibrator parallel to the axis of symmetry; and at least one friction nub having a center of mass displaced from the axis...

20060006763 - Piezoelectric/electrotrictive device: A piezoelectric/electrostrictive including a pair of mutually opposing vibration plates, each having a first portion and a second portion, a fixation section joined to the first portion of each of the vibration plates, and at least one piezoelectric/electrostrictive element arranged on at least one of the vibration plates. A surface...

20060006765 - Apparatus and method to transmit and receive acoustic wave energy: A transducer device including a housing that encloses a three-layer piezoelectric crystal assembly in contact with a backing block to produce more finely resolved electric and acoustic pulses. The three-layer assembly includes a piezoelectric crystal flanked by a front and back matching layer with a backing block in contact with...

20060006766 - Wedge shaped uniform energy megasonic transducer: A transducer comprising an acoustic energy generating means and a resonator. The acoustic energy generating means generates acoustic energy and is adapted for delivering an approximately uniform amount of acoustic energy to each unit of surface area on a substrate in a given time period when the substrate is rotating....

20060006767 - Steering column assembly: A steering column assembly for a motor vehicle includes a steering column having a steering-column portion constructed as hollow profile, and an active system for vibration damping. The active system includes plural piezoelectric elements which are disposed in offset relationship about a reference circle inside on the steering-column portion and...

20060006768 - Piezoelectric resonator and method for fabricating the same: A piezoelectric resonator includes a resonator film held along the principal surface of a substrate and constituted by a piezoelectric film, a lower electrode and an upper electrode. The lower electrode and the upper electrode are opposed to each other and provided on the lower face and the upper face...

20060006769 - Laser machining of electroactive ceramics: Laser beam machining is applied to form arbitrarily shaped electroactive ceramics for transducers (e.g., electromechanical sensors and actuators). One particularly preferred embodiment of the invention comprises machining parallel grooves in a ceramic plate to improve flexibility. The grooves provide strain relief in bending by relieving Poisson strains transverse to the...

20060001322 - Dual flow circulation system for a mover: A circulation system (330) for a mover (328) includes a fluid source (360) that directs a first fluid (356) into a first inlet (364A) of the mover (328) and a second fluid (358) into a second inlet (366A) of the mover (328). In one embodiment, a temperature of the second...

20060001323 - Tumbling magnet electricity generating system: The first magnet (9) is set free to tumble within a tumbling chamber (10). A coil (11) wound around the out surface of the tumbling chamber (10). The two ends of the coil (11) are connected to the terminals of an LED (light emitting diode) (3). There may be some...

20060001324 - Pattern coil type vertical vibrator: Disclosed is a pattern coil type vertical vibrator including: a housing; a magnetic circuit unit placed in the internal space of the housing, and including a magnet perpendicularly placed and a yoke for fixedly receiving the magnet therein; spring members provided with upper ends fixed to the housing and lower...

20060001325 - Coin type vibrating motor: Disclosed is a coin type vibrating motor including: a rotor provided with an upper base including at least one wound coil placed on the upper surface thereof; a stator including a pair of brushes placed on the upper surface of a lower base, on which a magnet is mounted corresponding...

20060001326 - Alternator equipped with stator having twisted inputs: The invention concerns an alternator, in particular for motor vehicle, comprising a stator (13) provided with a cylindrical body (14) bearing several phases (P), each phase comprising an input (E1 to E3) and an output, and electrically conductive interconnected elements (50) connecting the phase inputs to the phase output, the...

20060001327 - Method for producing coils and coil circuits: The present invention relates to a method for manufacturing multiphase windings (32) of an electric machine, in which the following process steps are carried out. Cross-sectional profiles (13) that increase the slot space factor are stamped onto wire elements (7, 11, 12). Offsetting dies (14, 26) are loaded with stamped...

20060001328 - Method for production of a stator and stator produced according thereto: Finally, the present invention also proposes a stator for an electric machine, in particular a generator for motor vehicles, which has a stator yoke that is comprised of rolled strip-shaped laminations (21) and has axial end surfaces (46). The stator yoke has an axial length at its inner diameter that...

20060001329 - Fbar device frequency stabilized against temperature drift: A film bulk acoustic resonator (FBAR) comprises a piezoelectric film sandwiched between a top electrode and a bottom electrode. A temperature sensor is provided to sense a temperature to determine a temperature induced frequency drift for the FBAR. A voltage controller operatively connected to the temperature sensor supplies a direct...

20060001330 - Drive method for piezoelectric actuator, drive apparatus for piezoelectric actuator, electronic device, control program for drive apparatus for piezoelectric actuator, and recording medium: A frequency of a drive signal supplied to a piezoelectric element is swept within a specific range, a detection signal indicating the vibrating state of a vibrating member is detected, and the sweep speed of the drive signal frequency supplied to the piezoelectric element is controlled based on this detection...

20060001331 - Piezoelectric actuator and device: Detection electrodes 82D and 82E are formed at positions that include an antinode of a flexural oscillation mode. The strain of flexural oscillation reaches a maximum and the effects on the phase difference in the longitudinal oscillation mode can be cancelled out. The detection electrodes 82D and 82E are formed...

20060001332 - Class de driving amplifier for piezoelectric actuators: The invention relates to a method and device for driving a piezo-electric actuator. A driving voltage is coupled to the piezo-electric actuator by an inductive element coupled in series with the piezo-electric actuator. The piezo-electric actuator is adapted to move an object. The frequency of the driving voltage coupled to...

20060001333 - Quartz crystal unit: A crystal unit for high frequency use includes: a crystal blank having a central portion that is used as a vibration region and a peripheral portion that surrounds the central portion and that is provided with a greater thickness than the central portion; a pair of excitation electrodes provided respectively...

20060001334 - Echo sounder transducer: The present invention achieves the wideband operation of a bolted Langevin-type echo sounder transducer by enabling low frequency operation with securing a sound pressure level above a certain level without changing the external dimensions of the echo sounder transducer. This is an echo sounder transducer includes a Langevin-type vibrator having...