Electrical generator or motor structure inventions 06/06

20060138873 - Driving apparatus for moving member to be moved: A magnet of a driving apparatus for moving a member to be moved from one abut end position to the other abut end position is caused to generate a magnetic force acting in the direction of an optical axis as well as a torque acting in a rotational direction....

20060138872 - High performance linear motor and magnet assembly therefor: A magnet assembly includes a back iron and an array of magnets. The back iron is in the form of a plate having opposed surfaces. The magnets are arranged along one of the surfaces, with the other surface being dimensioned and configured according to the magnetic field distribution associated with...

20060138874 - Motor, motor system, motor elements and method of assembly thereof: A variable reluctance linear motor comprising a motor system, that includes a bearing assembly and a spacer block that is incorporated into the motor so as to guarantee that an air gap that is maintained between the motor and stator during relative motion there between. The invention further includes means...

20060138871 - Nanopositioner: The invention relates to accurate positioning devices which make it possible to displace an object within a nanometric range. The inventive device comprises a fixed base element (BE) provided with accurate and rough positioning steps which are arranged thereon in such a way that they are reciprocatingly movable. The rough...

20060138875 - Ventilation apparatus: A ventilation apparatus includes a stator, a vibrator arranged close to the stator, a permanent magnet to generate a magnet flux to form a path of the magnet flux along the stator and the vibrator, a coil wound around the stator or vibrator, and a ventilator coupled to the vibrator...

20060138876 - Electric rotary machine: In the stator of a electric rotary machine in which heat conductive insulation resin is filled at the end portions of a stator coil, the material of a stator core, the stator coil, the heat conductive insulation resin and a frame is selected such that a linear thermal expansion coefficient...

20060138878 - Low profile d.c. brushless motor for an impeller mechanism or the like: An impeller and at least a portion of a cooperating peripheral volute may be integrated into, and preferably are integrally injection molded with, concentric outer rotor and inner stator assemblies, respectively, to achieve a low profile precision impeller mechanism based on an improved brushless d.c. motor with low length (L)...

20060138877 - Rotor core for motor and small motor: A rotor core for a motor includes a core having a plurality of core sheets which are laminated, a rotation shaft which is press-fitted to the core, a press-fitting part and at least a space part which are provided at a joining portion of a through-hole of each of the...

20060138879 - Electric wheel: The rotor of the outer-rotor type wheel-in motor of the electric wheel includes a field generator facing the outer surface of the stator across from an electrical gap. The field generator includes pole magnets magnetized in the radial direction with respect to the rotation axis of the wheel-in motor,- adjacent...

20060138880 - Position detecting apparatus having electric motor and method for detecting position: A reference position detecting apparatus includes an electric motor and a motor control unit. The electric motor includes a plurality of first coils and a plurality of second coils. The electric motor further includes a rotor that rotates when at least one of the plurality of first coils and the...

20060138882 - Structure of rectifier for automotive alternator ensuring reliable electrical connection: A rectifier for an automotive alternator includes a heat sink that has a plurality of rectifying elements mounted thereto to dissipate heat generated by operation of the rectifying elements. The heat sink is configured to be connected with an electrical terminal through an engagement between a male threaded member, which...

20060138881 - Turbogenerator: A rotating shaft is required to have an overhang for the mounting of a generator for an AC-exciter, the shaft length being increased correspondingly. The overhang may become the cause of generating shaft vibrations. A turbogenerator has a rotor over which a field winding is disposed, a coupling co-cut from...

20060138884 - Lead frame and distributing part using same: An electric motor lead frame for connecting motor coils of the same phase is formed integrally by a linear conductor. The linear conductor includes at least a single conducting wire and has terminal portions formed by bending for connection with winding ends of motor coils....

20060138883 - Motor for electric power steering and method for manufacturing the same: A small-sized motor for electric power steering, in which coil connection can be easily performed with space saving, and a method for manufacturing the motor. Multi-phase stator coils assembled in a stator coil are connected per phase by connecting rings at coil ends of the stator coils. A bus bar...

20060138885 - Vibration-generating small motor and portable electronic apparatus: The present invention is a vibration-generating small-sized motor that comprises within an external housing case thereof a stator and a rotor, a commutation mechanism, a power supply terminal that connects electrically with an electrode or a power supply land of the electronic equipment, and a terminal-blade mount on which the...

20060138886 - Lead wire sealing device, recording disk drive, and method for sealing housing member: A first metal housing member 111 is provided with a bottom plate part 1111 and a resin coating layer 1112 formed on a lower surface of the bottom plate part 1111. To a board mounted part 1113 which is a metal surface exposed part exposed from the resin coating layer...

20060138887 - Dynamic pressure bearing motor: A magnet (13) for trapping abraded powder is disposed in a connecting passage between an opening of a sleeve and an opening of a hydrodynamic bearing motor, and a shaft (3), a sleeve (4), a thrust flange (7), and a thrust main plate (5) are made of an austenitic stainless....

20060138888 - Turbomachine having a device for automatically detecting ferromagnetic particles in an oil enclosure: A turbomachine having a longitudinal axis, the turbomachine comprising an annular rotor centered on the longitudinal axis of the turbomachine, an annular stator disposed coaxially around the rotor, at least one ball bearing disposed on the rotor and rotatably supporting said stator, the inside of the rotor defining part of...

20060138889 - Electromagnetic motor employing multiple rotors: An electromagnetic motor employing plural rotors is provided, with each rotor exhibiting a permanent magnetic field. A control module selectively induces magnetic fields in electromagnetic pads surrounding each of the rotors. Through the interaction of the permanent and induced magnetic fields, the rotors can turn. As a result, a shaft...

20060138890 - Rotor structure of an axial gap rotating electrical device: The disclosure is directed to an axial gap rotating electrical device for generating electricity. Permanent magnets includes within the rotor are held into place by curved members that are capable of securing the magnets even under increased rotational speed. The axial gap rotating electrical device comprises a rotor comprising a...

20060138891 - Rotating magnetic device utilizing sacred geometry: A device for healing or purification having magnets configured in a pattern conforming to sacred geometry, adapted for rotation about an axis. The device is useful for purifying water and breaking down toxic waste and environmental pollutants from automobiles and industry in water, food, soil and air....

20060138892 - Rotor and winding method of same: A rotor in which a crossover portion from a commutator riser to a salient pole portion is disposed so as not to be broken, and a winding method of the rotor are provided. In a rotor having: an armature core to which a shaft is fitted and fixed, and which...

20060138893 - Insulator and armature and dynamo-electric machine: The present invention relates to an insulator to be disposed in an armature core having a plurality of radially-formed salient poles. The insulator comprises a winding aligning portion having an approximately V shape (forming an angle of 60 degrees) and getting narrower from an outer side to an inner side...

20060138894 - Rotor for rotating machine, manufacturing method of rotor and motor for electrically driven power steering: An object of the present invention is to provide a rotor with a high accuracy, a manufacturing method of the rotor and the motor for an electrically driven power steering in a manner that the accuracy of a shaft itself is not degraded, then a core is not applied with...

20060138896 - Closely spaced electrodes with a uniform gap: An improved design for maintaining separation between electrodes in tunneling, diode, thermionic, and other devices is disclosed. At least one electrode is made from flexible material. A magnetic field is present to combine with the current flowing in the flexible electrode and generate a force that counterbalances the electrostatic force...

20060138895 - Thermionic electric converter: A thermionic electric converter includes a cathode output enhancing laser (374) operable to direct a laser beam (376) to strike an emissive surface of a cathode emitter (321), to increase the electron output of the cathode emitter (321). The cathode output enhancing lase (374) is positioned to direct a laser...

20060138901 - Manipulator: A manipulator includes a spherical shell movable member, a manipulating member integrally mounted on the spherical shell movable member, and a vibration member in contact with the spherical shell movable member and vibrating so that the spherical shell movable member rotates about a plurality of axes. The manipulating member has...

20060138898 - Method for cleaning a resonator: A method for cleaning a resonator in an oscillator, a laser being first used for the adjustment of the resonator, in that, using the laser, a dielectric material of the resonator is removed until a specified frequency is attained; the resonator being cleaned using the laser after the attaining of...

20060138899 - Piezoelectric/electrostrictive body, piezoelectric/electrostrictive laminate, and piezoelectric/electrostrictive actuator: There is disclosed a piezoelectric/electrostrictive body which has superior piezoelectric/electrostrictive properties and which exhibits a sufficient durability even in a case where a flexural displacement is repeated a large number of times. A piezoelectric/electrostrictive body is constituted of a large number of crystal grains having the piezoelectric/electrostrictive properties in the...

20060138900 - Piezoelectric/electrostrictive body, piezoelectric/electrostrictive laminate, and piezoelectric/electrostrictive actuator: There is disclosed a piezoelectric/electrostrictive body which has superior piezoelectric/electrostrictive properties and which exhibits a sufficient durability even in a case where a flexural displacement is repeated a large number of times. A piezoelectric/electrostrictive body 30 is constituted of a large number of crystal grains 31 having the piezoelectric/electrostrictive properties...

20060138897 - Tool head comprising piezoelectric actuators: A tool head includes a holder for accommodating a tool and two actuators each of which is connected to the holder via a web. On the one hand, the actuators enable the holder to be deflected by a few micrometers from a resting position and, on the other hand, enable...

20060138902 - Acoustic boundary wave device: A boundary acoustic wave device using SH boundary acoustic waves includes a first medium layer, a second medium layer stacked on the first medium layer, and an electrode including an interdigital electrode and reflectors. A sound absorbing layer is provided on the surface of the first medium layer and/or the...

20060138903 - Piezoelectric bimorph actuator and method of manufacturing thereof: An actuator is disclosed, which includes a piezoelectric bimorph. The actuator also includes a substantially moisture impervious and electrically insulating packaging having a cavity around the bimorph providing for a clearance around the bimorph. The packaging includes a carrier having first and second surfaces and an aperture wherein the bimorph...

20060138904 - Closed-loop feedback control positioning stage: Provided is a closed-loop feedback control positioning stage comprising at least one block formed therein, a plurality of hinge mechanisms for attaching the block in the stage, at least one actuator formed in the block, the actuator adapted to bend for moving the block in at least one direction, and...

20060138905 - Piezoelectric fan for an integrated circuit chip: According to some embodiments, a piezoelectric fan is attached to an integrated circuit chip. The piezoelectric fan may, for example, be soldered to the chip and receive power through a via of the integrated circuit chip....

20060138906 - Piezoelectric device, piezoelectric actuator, piezoelectric pump, inkjet recording head, inkjet printer, surface acoustic wave device, thin-film piezoelectric resonator, frequency filter, oscillator, electronic circuit, and electronic instrument: A piezoelectric device including: a substrate; a first conductive layer formed over the substrate, the first conductive layer including a conductive oxide layer formed of a (001) preferentially oriented lanthanum nickelate, and the lanthanum nickelate having oxygen deficiency; a piezoelectric layer formed over the first conductive layer and including a...

20060138907 - Production methods of dielectric layer and dielectric element, dielectric element, and piezoelectric transformer: Heat-treating niobium pentoxide powder causes the powder to become agglutinated and bonded while phase transformation from an orthorhombic crystal to a monoclinic crystal occurs and resultantly bar-shaped c-axis-oriented niobium pentoxide particles, the longitudinal direction of which is identical to the c axis direction, are formed. A slurry is produced by...

20060138908 - Stacked piezoelectric element and method of fabrication thereof: The stacked piezoelectric element 1 comprises: a ceramic stack 10 constructed by alternately stacking piezoelectric layers 11 made of a piezoelectric material and internal electrode layers 21, 22 having electrical conductivity; and external electrodes 32 bonded to the side faces 101 and 102 of the ceramic stack 10 via an...

20060131967 - Linear hybrid brushless servo motor: An improved linear hybrid brushless servo motor is disclosed. The motor comprises a forcer and a platen. The forcer has a plurality of stacks, permanent magnets, and coils which form a three-phase motor. The platen has a low cost ferromagnetic steel plate. The stacks, permanent magnets and phase coils of...

20060131966 - Motor, motor system, motor elements and method of assembly thereof: A variable reluctance linear motor comprising a motor system, that includes a bearing assembly that is incorporated into the motor so as to guarantee that an air gap is maintained between the motor and stator during relative motion there between. The invention further includes means to replace the bearing assembly(s)...

20060131965 - Torque producing device: Device (100) for producing torque, the device including an armature (102) made of a printed circuit board, at least one winding (124) formed on the armature in a substantially rectangular spiral path, at least one magnetic field inducer (108) and a counteractive-torque producing element (116) coupled with the armature, the...

20060131968 - Electric motor comprising a temperature monitoring device: Disclosed is an electric motor comprising a temperature monitoring device which is provided with at least two temperature sensors that have different temperature characteristics and are connected to terminal clamps by means of electrical wires, whereby it is possible in an advantageous manner to connect regulating devices having different temperature...

20060131969 - Rectifier assembly with enhanced air cooling: An alternator rectifier assembly includes a rigid load bearing bushing intermediate a stator terminal board and a positive heat sink, wherein a minimum separation distance between the stator terminal board and the positive heat sink is defined by the bushing. The rectifier assembly further includes plurality of radiator connectors electrically...

20060131970 - Slip ring end frame: The slip ring end (SRE) frame is an SRE frame of popular small dimension designed to allow available larger rectifier assemblies having larger heat sinks to be fitted into the SRE frame, thus providing increased heat dissipation capability. Two flattened frame mounting bore wells are provided in an inner cylindrical...

20060131971 - Synchronous motor with starter device: A synchronous motor includes a starter device in the drive connection between the motor and a load, and a driven rotor. In the drive train between rotor and the load there is a shaft element inside which there is a cylindrical chamber in which a coaxial shaft is rotatable mounted,...

20060131972 - Bearing with auxialiary magnetism: A bearing assembly with auxiliary magnetism comprises a shaft, a fan base and a bearing. The fan base provides a hollow shaft seat with a receiving space to accommodate the shaft. The bearing fits with the shaft for supporting the shaft. A magnetic part surrounds the shaft to attract the...

20060131973 - Fan: A fan includes a fan base, a bearing assembly, a fan hub and a shaft. The fan hub is formed with an extrusion protruding from its top planar surface, and the shaft is fit into the bearing assembly and connected to the fan hub. The shaft has one end protruding...

20060131974 - Electrical machine and use thereof: The invention relates to an electrical machine of the transversal-flux type. The machine comprises a stator and a movable element. The stator has a plurality of stator elements with magnetic flux conductors and an electric winding extending in a closed winding path through each magnetic flux conductor. The movable element...

20060131975 - Longitudinally-fluted multi-pole permanent-magnet rotor: A rotor having a longitudinally-fluted and multi-pole configuration is used in a motor to enhance torque output of the motor. The rotor includes a shaft around which a magnetic member is fixed. The magnetic member is molded with a mixture of plastics and magnet powders and forms a plurality of...

20060131976 - Permanent magnet type motor: A permanent magnet motor 1 includes a rotor in which permanent magnets 31 are fixed. In the rotor 20, the outer peripheral shape of rotor magnetic-pole portions 24 is formed so that, in the circumferentially central portion, the distance from the center of the rotor iron core 21 is longest,...

20060131977 - Rotor for an electrical motor: The invention provides a rotor for an electrical motor. The rotor comprises both a squirrel cage and a number of magnets and can be inserted e.g. in a line-start motor. To secure the magnets in cavities in a core of the rotor, an end plate is attached to one axial...

20060131978 - High-intensity discharge lighting system and alternator power supply: A high intensity lighting system comprises a plurality of high intensity discharge lamps electrically connected to a polyphase alternator and a prime mover mechanically connected to the alternator. An inherent impedance characteristic of the alternator permits the lamps to be reliably started and energized without any separate ballast or comparable...

20060131979 - Variable reluctance motor with separated stator cores: A stator for a variable reluctance motor system is disclosed and the method of assembly thereof. The stator has a plurality of stator cores separated by nonferromagnetic material from each other. The assembly of the stator cores comprises stacking a plurality of lamina into a lamination stack, and then removing...

20060131980 - Rotor for an electrical motor: The invention provides a rotor for an electrical motor, a tool for making a rotor core and a method of making the rotor. The rotor could be incorporated e.g. in a line-start motor and comprises a squirrel cage and magnet located in a rotor core. The magnets are, in one...

20060131981 - Electrical machine with improved loss characteristics and method of making same: An electrical machine includes a stator and a rotor. The stator has a central opening that is configured to receive the rotor. The rotor includes a generally cylindrical first section comprising a first material mounted on an axially extending shaft within the central opening. The rotor further includes a second...

20060131982 - Commutator motor: A commutator motor includes a stator and a rotor, and the stator includes a stator yoke and a field magnet. The field magnet is fixed onto the inner peripheral surface of the substantially cylindrical stator yoke. The stator yoke is configured by coaxially stacking a plurality of plate-like annular bodies,...

20060131983 - Brush, commutator, and commutator device: In a commutator of a rotary electric machine, each of commutator segments has a low-resistive layer made of a low-resistive material and a high-resistive layer made of a high-resistive material having a specific resistance higher than that of the low-resistive material. The low-resistive material contains a carbonic material and a...

20060131984 - Hybrid induction motor: A hybrid induction motor comprises a stator fixedly installed in a casing, an induction rotor rotatably inserted into a center of the stator and having a shaft at a center thereof, a first synchronous rotor slid in a longitudinal direction of the shaft between the stator and the induction rotor...

20060131985 - Electrical machines and assemblies including a yokeless stator with modular lamination stacks: An electrical machine includes a rotor with an inner rotor portion and an outer rotor portion, and a double-sided yokeless stator. The yokeless stator includes modular lamination stacks and is configured for radial magnetic flux flow. The double-sided yokeless stator is concentrically disposed between the inner rotor portion and the...

20060131986 - Axial gap permanent magnet reluctance motor and method: An electric machine (10) has a disk-shaped rotor (24) disposed in an operating space between two opposing stator assemblies (11, 12) to provide two axial air gaps (15, 16). The rotor (24) has a hub (28) and an outer ring (26) of non-magnetic material and is further provided with a...

20060131987 - Interphase insulating sheet and stator having the same: An interphase insulating sheet is used in a stator including a core and a multiphase winding having a plurality of phase windings for insulating the phase windings from one another. The interphase insulating sheet includes a cut portion formed in the interphase insulating sheet. The cut portion indicates a direction...

20060131988 - Drive calibration method and system: A method and system of calibrating a drive includes changing an electrode voltage between a first set of electrodes and a second set of electrodes in the drive divided by an electrode gap, determining a threshold voltage for the electrode voltage at which an electrostatic attractive force causes the first...

20060131989 - Illuminated, three-dimensional modules for a magnetic toy construction kit: A construction kit that is suitable for creating a variety of different structures includes a plurality of illuminated elements. In one embodiment, an illuminated element has a plurality of substantially transparent panels forming a three-dimensional shape, a self-powered light cartridge within the three-dimensional shape, and a plurality of externally directed...

20060131990 - Electro-acoustic resonator: An electro-acoustic resonator (1, 8, 17) of the membrane or FBAR type (1) or the solidly-mounted or SBAR type (8), with electrodes comprising a single conducting layer or multiple conducting layers, i.e. sandwich construction (17) with an optimum coupling factor kr and thus an improved filter bandwidth. The optimum coupling...

20060131991 - Surface acoustic wave element: A highly reliable surface acoustic wave device includes a low-resistance piezoelectric substrate that is difficult to reoxidize even in a high-temperature atmosphere containing oxygen. The piezoelectric substrate has a specific resistance of about 1.0×107 Ω·cm to about 1.0×1013 Ω·cm, an interdigital electrode on a main surface of the substrate, and...

20060131992 - One-port surface acoustic wave resonator and surface acoustic wave filter: A one-port surface acoustic wave resonator includes a rotated Y-cut LiTaO3 substrate, an interdigital electrode transducer disposed on the LiTaO3 substrate, and reflectors disposed on both sides of the interdigital electrode transducer in the surface acoustic wave propagation direction of the interdigital electrode transducer. When the electrode finger width of...

20060131993 - Surface acoustic wave device and method of manufacturing a surface acoustic wave device: A surface acoustic wave device including at least an IC region and a surface acoustic wave element region in a semiconductor substrate and formed as a single chip, including, in the IC region, a semiconductor element layer having a semiconductor element and an element insulating film formed to cover the...

20060131994 - Device for monitoring a predetermined filling level of a measuring medium in a container: A vibration detector for determining and/or monitoring a predetermined fill level in a container. The detector includes an oscillatable unit, a driver/receiver unit and an evaluation unit. The vibration detector can, additionally, be used as a viscosity sensor or as a density sensor. For providing a multivariable sensor, a microprocessor...

20060131995 - Piezoelectricity-driven part feeder: A moving table supports a parts conveying member. A fixed table is disposed below the moving table and supports the moving table so as to freely vibrate the moving table through a vibration generator. The vibration generator includes a first elastic member and a piezoelectric element mounted to the first...

20060131996 - Micro stage using piezoelectric element: Provided is a micro stage comprising: a body having a vertically perforated through-hole passing through a central portion thereof; a bobbin including a tip portion with an electron emission tip embedded in the center thereof, and passing through the through-hole of the body to be moved in the through-hole along...

20060131997 - Microelectromechanical system actuator: Provided is a microelectromechanical system (MEMS) actuator in which a cantilever piezoelectric actuator and a comb actuator are combined to perform dual shaft drive. The MEMS includes: a stationary comb fixed on a substrate; a movable comb disposed separately from the substrate; and a spring connected to the movable comb...

20060131998 - Surface acoustic wave device and method of manufacturing the same, ic card, and mobile electronic apparatus: A surface acoustic wave device includes a surface acoustic wave (SAW) chip and a cover that are bonded in a body by bonding a metal bonding portion of the SAW chip and a metal bonding portion of the cover and bonding extraction electrodes of the SAW chip and connection electrodes...

20060131999 - Electro-mechanical energy converter and vibration wave driving: At least one exemplary embodiment is directed to an electromechanical energy converter and a vibration wave driving apparatus that can facilitate miniaturization, high power, low cost and low voltage drive, by using a polygonal piezoelectric element with a plurality of electrode films divided by a boundary of electrode film on...

20060132000 - Piezoelectric device, its manufacturing method, and touch panel device: A piezoelectric device (X) includes a substrate (11) a piezoelectric film (12), a first electrode (13), and a second electrode (14). At least one of the first electrode (13) and the second electrode (14) is interposed between the substrate (11) and the piezoelectric film (12), and made of an Al...

20060132001 - Piezoelectric actuator and a method for its manufacture: A piezoelectric actuator comprised of a multi-layered construction of piezoelectric layers interleaved with inner electrodes in which the inner electrodes are contacted on alternating sides by outer electrodes and the regions between the outer electrodes are provided with a suitable insulation has an insulating layer which is comprised of a...

20060132002 - Piezoelectric actuator: A piezoelectric actuator for actuating a mechanical component in which, with a multilayer construction of piezoelectric layers and inner electrodes disposed between them, an alternate-side lateral contacting of the inner electrodes with outer electrodes is possible. Before being put together to make the multilayer construction, the individual inner electrodes are...

20060125325 - Linear generator apparatus: A linear generator apparatus includes first and second elongate coaxial bodies that are axially movable relative to one another with a reciprocating movement. The first body is axially and freely movable relative to the second body within a predetermined displacement range or free zone. A helical spring connecting to both...

20060125326 - Linear motor: Linear motor (10) comprising a rotor (13), having a plurality of teeth (21, 22), wherein each pair of adjacent teeth (21, 22) defines a corresponding compartment (23) inside which at least a relative electric coil (24) is housed. The linear motor (10) also comprises a support (18) on which a...

20060125327 - Linear motor: A linear motor (10) comprises a field portion (20) and an armature (15) arranged in predetermined spaced relation with the field portion and adapted to linearly move along the field portion. The field portion includes a plate (21), a plurality of permanent magnets (24) arranged adjacently to each other so...

20060125328 - Electromagnetic actuator: An electromagnetic actuator with a smaller size and an increased strength is provided. In the electromagnetic actuator, a first arm portion and a second arm portion that connect the magnetic poles of a stator extend to the outside of a rotor housing. A first coil and a second coil are...

20060125329 - Rotor for hybrid type stepping motor and manufacturing method thereof: Depressed portions for being fitted with a rotor collar 8A are formed in two rotor stacks 7B, 7A opposed to each other in an axial direction of the rotating shaft 1 with the rotor collars 5A, 5B therebetween. Each of the rotor collars 5A, 5B includes a central portion 5a...

20060125330 - Decoupling device and method for the production of an electric motor: The invention relates to a device for mounting an electric motor (10) in a manner that isolates vibrations, in particular a fan motor, wherein the electric motor (10) features at least one pole housing (12, 14) serving as a magnetic yoke circuit, as well as means (26, 27) for fastening...

20060125331 - Electric machine comprising a wrapped coil that is to be deep-frozen: An electric machine has a rotor that is rotatable about an axis of rotation, and an especially superconducting winding which is to be cooled to a low temperature. The winding is enveloped by a securing means with a wrap. The outer contour of the wrap of the securing means increases...

20060125333 - Dipping varnish-coated cooling shell of a housing for an electric machine: A coolable housing shell for an electric machine, which is produced as a cast part, accommodates a concentric interior rotor/stator arrangement, coils, and end windings, and comprises a clear, open, through passage that is embodied in a symmetric, concentric, and/or coaxial manner relative to an imaginary axis of rotation of...

20060125332 - Redundant cooling system with two cooling circuits for an electric motor: A redundant cooling device, for an electrical submarine drive motor, includes a first cooling circuit and a second cooling circuit, by which thermal energy may be removed from the electric submarine drive motor. A high degree of operational security and redundancy may be provided, whereby the coolant in the first...

20060125334 - Motor: In a motor, an sensor magnet is attached to a shaft and three hole sensors for detecting the position of the sensor magnet are mounted on a circuit board. By using neodymium-iron-boron base rare earth magnet having radial anisotropy as a sensor magnet, the detection accuracy for the position of...

20060125335 - Traction motor: In order to prevent bearing currents, particularly in converter-operated traction motors (1), the housing (11) is grounded via a grounding capacitor (Cground)....

20060125336 - Harmonic propulsion and harmonic controller: A device and method for propelling objects using periodic or harmonic vibrations is described. The device comprises a flexible substrate or surface and a source of vibrational energy that is applied to the substrate or surface. Specific embodiments include a device which can move along a flat surface, which can...

20060125337 - Stainless steel unsealed motor: The invention relates to motors and motor assemblies that can be washed without causing corrosion of components, and without causing premature motor failure as a result of corrosion. The motor and motor assembly comprise components constructed from non-corroding stainless steel. The motor and motor assembly are constructed according to an...

20060125338 - Electrical induction machine and primary part: A primary part of an electrical induction machine, especially a synchronous motor or a linear motor, includes a plurality of modules which each have teeth situated in a row having at least partially encircling slots, in the slot of each tooth a coil is wound around this tooth, and the...

20060125339 - Strip-shaped lamina and laminated stator core for an electric machine: A strip-shaped lamella (10) for a stator (30) of an electric machine, having a yoke region (12) and a number of first teeth (18) that are of one piece with the yoke region (12) on a first side (14) and have first grooves (20) between them, and having second teeth...

20060125340 - Motor with stator formed by assembling divided stator-members into an annular shape, and compressor incorporating the same motor: A motor includes a stator formed by assembling plural divided-stator-members—each one of the members having a tooth—into an annular shape, and a rotor facing the stator. The divided stator members are formed by laminating plural core sheets and bonding at least parts of end faces along the laminating direction of...

20060125342 - Electric motor: An electric motor comprises a stator (1, 5, 8) having an air-gap which extends around an axis and in which a rotating magnetic field is generated, and a rotor (11, 12, 13) comprising a shaft (11) which is rotatably held by a bearing (10) and a permanent magnet (13) which...

20060125341 - Stator and electrical machine: The method for making a stator includes making individual strip-shaped laminas (15) for it; stacking the laminas (15) to form a stator core (13) with grooves (18) on one side extending through the core; producing a subassembly by inserting a stator winding (17) into the grooves (18); bending the subassembly...

20060125343 - Bolted spherical series and phase connector for stator coils of electrical generators: A connector arrangement and techniques are provided for reducing eddy current losses and/or skin effects while enabling more readily serviceable series and phase connections between the coil ends 12 and 18 of a generator stator 10. This may be achieved by providing a connecting structure 24 that enables two parallel...

20060125344 - Electric motor and electric tool having the motor: In a circular saw, an end plate provided on an end of a rotor core has a cylindrical shaft insulator and a plate extending radially from the shaft insulator. The plate is disposed at a position separated from the end of the rotor core. The plate includes slot parts, and...

20060125345 - Direct current motor: At least some portions of the rotator core are formed with non-magnetic materials to decrease the inductance of the coils of the rotator. This minimizesthe generation of a spark between the commutator and brush, thereby improving the durability of the brush and commutator. The cogging torque is also preventedby decreasing...

20060125346 - Actuator: An actuator having a rotation central axis includes: an insulative frame; movable comb electrodes having first electrode teeth; a movable portion between the movable comb electrodes; supporting portions on the frame supporting the movable comb electrodes and the movable portion; fixed comb electrodes on the frame corresponding to the movable...

20060125347 - Actuator: An actuator 100 includes: a pair of driving portions 1, 11 spaced apart from each other; a movable portion 2 provided between the pair of driving portions 1, 11; a pair of supporting portions 3, 3 for supporting the pair of driving portions 1, 11 and the movable portion 2;...

20060125348 - Micromachined ultrasonic transducer cells having compliant support structure: A micromachined ultrasonic transducer array comprising a multiplicity of cMUT cells built on a substrate. Each cMUT cell comprises a compliant support structure built on the substrate, a membrane supported over a cavity by the compliant support structure, a first electrode supported by the membrane, and a second electrode that...

20060125349 - Surface acoustic wave device and branching filter: A surface acoustic wave device is provided with an input signal electrode 15 and an output signal electrode 16 to and from which an electric signal is inputted or outputted; a first surface acoustic wave resonator 18 including an input terminal 18a connected to the input signal electrode 15 and...

20060125350 - Valve control device: The invention relates to a device for displacing a moving part along a longitudinal axis relative to a housing, said device being symmetrical about a plane extending longitudinally relative to the moving part, the device comprising two structures that are secured to said moving part and elements of active material...

20060125351 - Accleration tolerant piezoelectric resonator: The invention relates to piezoelectric resonators. An interposer element is used between a resonating plate and the resonator package to provide improved (i.e. reduced) acceleration sensitivity. The interposer element is preferably of similar thermal expansion characteristics to the resonating plate. Electrical connection to the resonating plate from the exterior of...

20060125352 - Method of manufacturing ceramic film and structure including ceramic film: A method of manufacturing a ceramic film by using an AD method, by which a film having good crystallinity can be fabricated without using a high-temperature process. The method of manufacturing a ceramic film by using an aerosol including the steps of: (a) dispersing ceramic raw material powder containing an...

20060125353 - Piezo actuator: A piezoelectric actuator has a multilayered structure of piezoelectric layers with inner electrodes interspersed between them and a contacting of the inner electrodes on alternating sides by means of outer electrodes that can supply an electrical voltage. The respective outer electrodes are attached in a net-like, mesh-like, or screen-like fashion...

20060125354 - Piezoelectric actuator: A piezoelectric actuator for actuating a mechanical component, having a multilayered structure of piezoelectric layers with inner electrodes disposed between them and contacting outer electrodes on alternating sides and the piezoelectric actuator has chamfered corners or edges. In the region of the corners or edges, on the sides of the...

20060113846 - Mechanism of motor reduction with variable regidity and rapidly controllable: A transmission mechanism between two or more shafts of devices that interact or could possibly interact with people. The transmission mechanism has a particular application to the sector of machines for muscular training and/or rehabilitation, devices for entertainment such as carousels and amusement-park rides, service machines and robots that physically...

20060113847 - Linear actuator: A linear electromagnetic machine comprises two relatively movable members with an array of coils on one member and a plurality of magnets of alternating polarity on the other whereby to generate a magnetic field which intersects a current flowing in the coils in such a way as to give rise...

20060113848 - Linear brushless d.c. motor with stationary armature and field and with integralable magnetic suspension: This disclosure describes an electronically commutated linear d.c. motor with an armature and field source fixed relative to each other and a third element on which motor action takes place, consisting of a salient pole structure into which magnetic flux is impressed with no physical contact and little or no...

20060113849 - Motor having cores structure wherein magnetic circuit is designed in three dimensional configuration: In order to provide a motor characterized by a high level of efficiency equal to or better than that of using the silicon steel plate, achieved by easy production method and reduced core loss, which result from reduction in the manpower for production by using the sintered metal or powdered...

20060113850 - Noise filter and motor: A noise filter has a substrate, which is formed with a through hole for letting a power supply line pass, and has a first conductor pattern located near the through hole and adapted to be electrically connected to the power supply line to pass through the through hole, and a...

20060113851 - Motor cooling device and cooling method: A motor cooling apparatus and method to auto-circulate coolant to reduce the weight and size of the cooling system. The cooling apparatus includes a coolant path disposed at hot areas of the motor. A reservoir tank is located above the coolant path and gravity feeds coolant to the coolant path....

20060113852 - Motor and method of manufacturing the same: A connector housing 45 is formed separately from a gear housing 20 and a closing and fixing member 21. The connector housing 45 includes a retainer 49, which supports an external connector 48 relative to the closing and fixing member 21, and an elastically deformable grommet 50. A retainer-side end...

20060113853 - Wheel hub drive: A wheel hub drive for a running wheel (10) is described. The drive having a transmission (7), a motor (8) and a brake (11), such that the enveloping circle (9) of the wheel hub drive is determined by the running wheel and the transmission (7), motor (8) and brake are...

20060113854 - Brushless motor: Of two bearings supporting a rotor of a circuit-integrated type core-equipped brushless motor, a part of an outer periphery of the bearing, which is disposed at a position near a stator core, is allowed to directly abut on an inner periphery of a hole formed in a center of the...

20060113855 - Low cogging and easy-to-downsize spindle motor structure: The present invention relates to a low cogging and easy-to-downsize spindle motor structure. The motor is an axial magnetic flux spindle motor comprising a stator assembly and a rotor assembly. The stator assembly comprises a deck for seating the rotor assembly and at least one bearing placed on the housing...

20060113856 - Axial air-gap electronic motor: The anchor magnet 36 integral with the rotor magnet 32 via a through hole 35 is provided on the back surface side of the rotor back yoke 31 of the rotor 3, thereby fixing the rotor magnet 32, and further position detection is carried out by the anchor magnet 36....

20060113857 - Thin hybrid magnetization type ring magnet, yoke-equipped thin hybrid magnetization type ring magnet, and brush-less motor: The present invention provides miniaturization of brushless motors and brush motors used in electric devices, a ring magnet which simultaneously achieves both high torque and a reduction in cogging torque, a ring magnet with yoke, and a brushless motor. The thin hybrid magnetized ring magnet of the present invention is...

20060113858 - Permanent magnet type rotating electrical machine: A permanent magnet type rotating electrical machine that is capable of producing a higher output and is suitable for high-speed rotation. A pair of nonmagnetic portions are formed in a rotor core at opposite ends of each pole. The waveform of induced voltage and a motor voltage are adjusted based...

20060113859 - Electric motor: A brushless peripheral-rotor electric motor comprises a stator assembly, having an axis, a stator plate holder, fixed on the axis, at least one stator plate assembly, mounted on the stator plate holder, and electric coils, would around the plates of the stator plate assembly; and a rotor assembly, having a...

20060113860 - Connector with flux concentrator for electric motor: A connector for an electric motor including a magnetic ring which is the seat of a magnetic field tied to operating parameters of the motor. A magnetic flux conduction member forms a flux concentrator interposed, when a connector is fixed on the motor, between the magnetic ring and a Hall-effect...

20060113861 - Motor vehicle ac generator having a rotor incorporating a field winding and permanent magnets: In a vehicle AC generator, the rotor has two pole pieces that axially enclose a field winding, while a tubular stacked-lamination core formed of axially stacked magnetic laminations is mounted with its inner circumference in contact with outer circumferences of the pole pieces. A plurality of axially extending elongated permanent...

20060113862 - Electrostatic induction conversion device: There is provided an electrostatic induction conversion device which is small, has high conversion efficiency between electric energy and kinetic energy, and can prevent degradation of an electret. The electret is formed by injecting an electric charge into the vicinity of the surface of an insulating material, is disposed between...

20060113863 - Drive apparatus for piezoelectric actuator, drive method for piezoelectric actuator, electronic device, control program for drive apparatus for piezoelectric actuator, and recording medium: A drive apparatus for a piezoelectric actuator prevents locking drive frequency in a state of resonance due to harmonics. There is no need to provide external components to filter, and circuitry can easily be reduced in size. The drive apparatus has a phase difference-DC conversion circuit to detect vibrating state...

20060113865 - Driving device and driving method: A rod is sawtooth-like vibrated by cyclically applying, to a piezoelectric element, voltage values which are stepwise and sequentially increased or decreased, so that a moving unit is driven along the rod in one direction or the opposite direction. The sequentially increased or decreased voltage values are generated by controlling...

20060113864 - Reactive load resonant drive circuit: Energy efficient circuitry is provided for rapid transfer of charge to and from a reactive load while avoiding excessive peak currents and significant resistive energy dissipation. For example, circuitry of the invention provides for rapid actuation of a piezoelectric mass flow valve actuator while significantly reducing electrical input power and...

20060113866 - High resolution piezoelectric motor: A piezoelectric motor for moving and positioning a load, the motor comprising: a piezoelectric vibrator having a plurality of electrodes and a coupling surface which is pressed to a load; and a power supply selectively operable to electrify at least one vibrator electrode with time varying voltage to generate vibrations...

20060113867 - Vibration wave motor: A vibration wave motor includes a housing, a rotor, a bearing member, a bending-vibration driving transducer having a support shaft and two driving elements and serving as an actuator, and a leaf spring having a pressing protrusion. The transducer is slidable in an opening of the housing along a rotation...

20060113868 - Vibration wave motor and lens barrel: A vibration wave motor includes a housing, a rotor, a bearing member, a vibrator serving as an actuator and having a support shaft and a driving element, and a leaf spring having a pressing protrusion. The vibrator is slidably disposed in an opening of the housing along a rotation axis...

20060113869 - Diffractive thin-film piezoelectric light modulator and method of fabricating the same: Disclosed herein is a diffractive thin-film piezoelectric light modulator, in which a lower protective layer is formed on a lower support to prevent the lower support from being over-etched when etching, thus increasing the surface smoothness of the lower support and of a micro-mirror. In addition, a method of fabricating...

20060113870 - Actuator unit for a piezo-controlled fuel injection valve: An actuator unit suitable for actuating a fuel injection valve of an injection system for internal combustion engines is comprised of a piezoelectric actuator and a hollow body embodied in the form of a spring. Embodying the hollow body according to the present invention can extend the service life of...

20060113872 - Longitudinally driven slotted cylinder transducer: A longitudinally driven slotted transducer has a tubular member with an axial slot extending from one end to the other end. A drive assembly is disposed across the inner wall of the tubular member and supported by journal bearing surfaces extending from opposing sides of the inner wall to locate...

20060113871 - Piezoelectric actuator and a method for producing it: A piezoelectric actuator is proposed, for example for actuating a mechanical component, and has a multilayered structure of piezoelectric layers with inner electrodes interspersed between them. The inner electrodes contact the outer electrodes on alternating sides and the regions between the outer electrodes are provided with a suitable insulation. The...

20060113873 - Ultrasonic cleaning tank: An ultrasonic cleaning tank for use in cleaning electronic parts having a top portion and a bottom portion operably divided by a perforated dispersion plate. The cleaning tank is assembled to avoid internal projections or obstructions within the top portion to create a piston-like, laminar flow region. The dispersion plate...

20060113875 - Piezoelectric vibrator, method of manufacturing the same, oscillator, electronic apparatus, and wave clock: Provided is a method of manufacturing a piezoelectric vibrator including: forming integrally a vibrator piece and a frame surrounding the vibrator piece on a first wafer and forming bonding films on the both surfaces of the frame; forming a through-hole at a position corresponding to the frame of the first...

20060113874 - Surface acoustic wave device package: A SAW device package includes a SAW die, a molding compound, and conductive leads. The SAW die includes a piezoelectric substrate having a transducer-mounting surface, transmitting and receiving transducers that are formed on the transducer-mounting surface and that have conductive connecting pads, and a cap that is formed on and...

20060113876 - Piezoelectric/electrostrictive device: A piezoelectric/electrostrictive device 10 includes a stationary portion 11; a thin-plate portion 12 supported by the stationary portion; and a piezoelectric/electrostrictive element 14 including a plurality of electrodes and a plurality of piezoelectric/electrostrictive layers which are laminated alternately. The piezoelectric/electrostrictive device 10 is manufactured as follows: firstly, a piezoelectric/electrostrictive laminate...

20060113877 - Non-symmetric drive type piezoelectric ceramic transformer: A non-symmetric drive type piezoelectric ceramic transformer has been disclosed in the present invention. The non-symmetric drive type piezoelectric ceramic transformer has a rectangular piezoelectric ceramic conductor. Along the length of rectangular piezoelectric ceramic conductor, it is divided into three zones: the first zone is the oscillation node accommodate zone...

20060113878 - Electroactive polymers: The present invention relates to transducers, their use and fabrication. The transducers convert between mechanical and electrical energy. Some transducers of the present invention include a pre-strained polymer. The pre-strain improves the conversion between electrical and mechanical energy. The present invention also relates to devices including an electroactive polymer to...

20060113879 - Piezoelectric micro acoustic sensor based on ferroelectric materials: The present invention relates to a piezoelectric micro acoustic sensor based on ferroelectric materials. In one embodiment, more than one electrode pairs are provided within at least one of the central portion and the peripheral portion of a ferroelectric film of the sensor, a polarizing voltage is applied to each...

20060113880 - Electroactive polymers: The present invention relates to transducers, their use and fabrication. The transducers convert between mechanical and electrical energy. Some transducers of the present invention include a pre-strained polymer. The pre-strain improves the conversion between electrical and mechanical energy. The present invention also relates to devices including an electroactive polymer to...