Electrical generator or motor structure inventions 07/06

20060163951 - Linear actuator or generator with rods: The invention concerns an electrical machine, whereof the active part includes a global solenoid winding (110, 210, 310) for each phase and includes, inside said winding(s), a stack of ferromagnetic or non-magnetic parts (400) and magnetized parts (500), the ferromagnetic or non-magnetic parts being provided with passages traversed each by...

20060163952 - Electric rotating machine: An in-slot conductor part of a stator winding of a rotary electric machine has multiple in-slot conductors disposed in multiple slots, and coil end parts of the stator winding have multiple coil end conductors continuously connecting together the in-slot conductors disposed in different slots on the outer sides of the...

20060163953 - Step motor: A step motor includes a rotor having four magnetic poles, a first magnetic pole magnetically excited by a first coil, a second magnetic pole magnetically excited by a second coil, and a third magnetic pole magnetically excited by the first coil and the second coil. A gap D between the...

20060163954 - Cooling of a stator: The invention relates to the cooling of a stator (3) of an electric machine (1), the stator (3) comprising an autonomous cooling circuit, that is to say distinct from another cooling circuit such as that of a rotor of the electric machine (1), for example. The invention is particularly suitable...

20060163955 - Flat hollow brushless servo motor with tool mounting hole: A flat, hollow brushless servomotor (1) has a motor housing (2), housing through holes (22a, 23a) formed in a center of both end plate portions (22, 23), a rotor shaft (41) of which a portion of both ends is exposed from the through holes, a tool-mounting hole (43) that extends...

20060163956 - Starting device for single-phase induction motor: When a starting current flows in an auxiliary winding S, a main PTC 12 and an auxiliary PTC 14 generate heat by themselves and the electrical resistance value increases. When the auxiliary PTC 14 reaches 140 deg. C., the snap action bimetal 18 is turned off, and no current flows...

20060163957 - Rotating rectifier assembly with inner mounted diodes: The present invention is a rectifier assembly, which has a first support and a second support. The supports have either a ring or plate shape. Each support has an inner peripheral surface with inwardly facing diode mounting surfaces. A diode is mounted to each of the inwardly facing diode mounting...

20060163959 - Segment connection type electric rotating machine: The segment connection type electric rotating machine includes a stator coil constituted by phase coils each of which includes a U-shaped segment continuum formed by U-shaped conductor segments inserted into slots of a stator core, an I-shaped leading conductor segment inserted into one of the slots and connected to a...

20060163958 - Wiper motor for driving wiper: A connector part extends outward of a yoke housing from a holder base and is connectable with an external connector to receive an electric signal. A contact base extends from the holder base into an interior of the gear housing through a communication hole, which is formed in a yoke...

20060163960 - Self-powered lighting for wheeled arrangements: A rotating wheel causes lights on and off the wheel to flash to create a light display. Moving pole teeth between a permanent magnet and an electromagnetic coil induce in the coil electrical pulses for flashing the lights....

20060163961 - Generator hub adapter: A generator hub adapter is disclosed that is for use on a bicycle generator hub. The generator hub adaptor includes a mounting portion and a contact terminal. The mounting portion has a contact surface dimensioned and arranged to contact an axial outer face of a nut member of the generator...

20060163962 - Magnetic bearing device: In order to obtain a magnetic bearing apparatus in which a large cooling effect is exerted by a simple configuration, fins 15 which for man air flow in a rearward direction are disposed in a rear portion and outer diameter of a rotary shaft 1, a generator 16 which converts...

20060163963 - Counter rotating generator: A counter rotating generator has an outer housing including a cylindrical sidewall defining a pair of openings and a pair of circular mounting plates connected to the outer housing adjacent respective opposed ends thereof. A first shaft and an armature mounted thereon are rotatably mounted on one mounting plate. A...

20060163964 - Axial air-gap electronic motor and method for manufacturing the same: In an axial air-gap electronic motor in which a teeth surface of a stator and a magnet surface of a rotor are arranged opposedly along the axis line direction of an output shaft of the rotor with a predetermined gap being provided therebetween, the stator has a plurality of core...

20060163965 - Stator structure of motor: A stator structure of a motor. The stator structure has a base including a main body and a plurality of protrusions extending from the main body. A stator part has a plurality of magnetic-pole portions, wherein each protrusion is positioned in a gap between every two adjacent magnetic-pole portions when...

20060163967 - Electric motor and apparatus for manufacturing electric motor: A motor capable of reducing cogging torque depending on teeth of a stator, and a motor manufacturing apparatus for manufacturing this motor. The angles of rolling directions of cores stacked are set so that the phase difference between the phases of cogging torques produced on the cores is 180° so...

20060163966 - Rotor of motor: A rotor of a motor includes: a stator; a rotor core of a certain shape; a winding coil wound on the rotor core; and a rotor rotated by an electromagnetic interaction with the stator, in which both sides of an end wall of each slot of the I rotor core...

20060163968 - Carbon brush with lead wire for use in rotary electric machine: A carbon brush composed of a brush body and a lead wire is used for supplying electric current to a rotor of a rotary electric machine. The lead wire is made by twisting many thin wire elements each having a diameter smaller than 0.05 mm. A cross-section of the lead...

20060163969 - Rotating electric machine: Provided is a rotating electric machine which can restrain vibration and noise induced by a radial electromagnetic force of the rotating electric machine, and in which a rotor is divided into first to fourth four rotating pieces having axial lengths of 0.29 L, 0.71 L, 0.71 L and 0.29 L...

20060163971 - Solid state electric generator: A solid-state electrical generator including at least one permanent magnet, magnetically coupled to a ferromagnetic core provided with at least one hole penetrating its volume; the hole(s) and magnet(s) being placed such that the hole(s) penetrating the ferromagnetic core's volume intercept flux from the permanent magnet(s) coupled into the ferromagnetic...

20060163970 - Torus geometry motor system: A torus motor system includes a hollow stator and a rotor which is driven along a rotor path formed within the hollow stator by a magnet system. The rotor operates as a piston within the rotor path to intake and discharge fluid therefrom. The forces on the rotor all tend...

20060163972 - Receiving sleeve for a piezolectric actuator: The invention relates to a receiving sleeve for a piezoelectric actuator, in particular for a piezoelectric actuator for driving an injector of an injection system in an internal combustion engine. Said sleeve comprises a first sleeve part (1) and a second sleeve part (2), the first sleeve part (1) being...

20060163973 - Pressure sensitive sensor: A plurality of lead-out wires 10 and 11 provided with insulating coating are stacked in a pressure sensitive sensor 1 and are molded in the shape of a cable, and at a distal end portion S the lead-out wire 11 is connected to a central electrode 2 and the lead-out...

20060163974 - Piezoelectric vibrator and fabricating method thereof: The present invention relates to piezoelectric vibrators such as a resonator used as a timing element, discriminator, filter or the like, and fabricating methods thereof. The piezoelectric vibrators of the present invention may be fabricated by forming a piezoelectric body of piezoelectric sheets, of which the thickness is controlled, and...

20060158045 - Control device with interchangeable electronic card for rolling elements such as roller blinds, roller shutters awnings and so forth: A control device for rolling elements such as roller blinds, roller shutters, awnings and so forth, comprising an electric motor (2) housed inside a tubular casing (1), is fitted with an electronic control card (10) housed so that it can be extracted inside a box (7) fixed to an extremity...

20060158046 - Light direction assembly shorted turn: A light direction assembly comprises a tip-tilt platform having a light direction member and at least one current coil coupled to the tip-tilt platform. The light direction assembly also includes a plurality of magnetic producing devices that are positioned in close proximity to the current coil. The magnetic producing devices...

20060158047 - Non-reciprocal circuit device: A non-reciprocal circuit device is provided with a remarkably smaller size than before and can achieve higher performance if the outer shape is the same as before. A gyromagnetic component, a permanent magnet, a first yoke and a second yoke are included. The permanent magnet is provided at least on...

20060158048 - Vibratory linear actuator and electric toothbrush using the same: A vibratory linear actuator according to one embodiment of the present invention is comprised of a stator having a through hole therein and a winding wire therearound, a movable member having a through hole therein and a member made of a magnetic material, said movable member being provided inside said...

20060158049 - Integrated electric motor and drive, optimized for high-temperature operation: The heat-generating components of an integrated motor system are disposed proximate the motor body, for efficient heat dissipation, and the heat-sensitive components are segregated therefrom, physically and thermally....

20060158050 - In-wheel motor: A front wheel is rotatably fitted to a knuckle of a suspension by means of a hub unit. While a stator bracket, which is fitted to an outer hub of the hub unit fixed to the knuckle, supports an annular stator, a rotor bracket, which is fitted to an inner...

20060158051 - Fresh air ventilation control methods and systems: Methods and systems are disclosed for meeting a fresh air ventilation threshold in a controlled space. In particular, and in some embodiments, a minimum ventilation threshold is met by using normal air handler fan cycles to minimize the energy cost of supplying the ventilation. Prediction methods may be employed to...

20060158052 - Spindle motor and rotation apparatus: A spindle motor which allows appropriate formation of communicating hole for compensating a pressure difference due to an error in working of dynamic pressure generating grooves and other components, easy formation of dynamic pressure generating grooves and readily prevention of leakage of a lubrication fluid is provided. An outer cylindrical...

20060158053 - Electric machine comprising a permanent magnet: The present invention relates to an electrical machine having a rotor, a stator, and a permanent magnet located on the rotor. The permanent magnet is embodied essentially as a hollow cylinder with axial and/or radial contact faces and is secured to the rotor at the axial and/or radial contact faces...

20060158054 - Motor and manufacturing method for a motor: A motor includes a circumferential wall part of a case provided with an opening part on one end side in an axial direction and at least a magnet fixed to the inner peripheral face of the circumferential wall part. At least a part of the outer peripheral face of the...

20060158055 - Tangential induction dynamoelectric machines: Novel class dynamoelectric machines utilizing “tangential induction” phenomenon—the specific e.m.f. induction, which appears in tangential conductors—is introduced. Alternating-current dynamoelectric machines of this invention house an axially-polarized multi-polar permanent magnet rotor and stator winding having tangentially arranged semi-ring conductors. The rotating permanent-magnet rotor induces current in tangential semi-ring conductors, which, according...

20060158056 - Rotor with a cover plate for securing a magnet in the rotor: The invention provides a rotor for an electrical motor, e.g. a line-start motor. The rotor comprises a magnet located in a cavity in a rotor core. The core is laminated from sheets of magnetically conductive material and the magnet is secured in the cavity by an end plate which covers...

20060158058 - Brush holder apparatus, brush assembly, and method: Devices and methods of use for brush holders are disclosed. A brush holder assembly including a brush catch and a brush release is disclosed. Also illustrated is a brush holder assembly including a first portion in sliding engagement with a second portion. Sliding engagement of the first portion with the...

20060158057 - Electric machine including a brush-holder support having flex foil, as well as a method for producing a brush-holder support: An electric machine includes brushes and a brush-holder support in which an electrical connection of components of the brush-holder support is realized with the aid of a flex foil. Furthermore, a method for producing a brush-holder support for an electric machine....

20060158060 - Spindle motor: A spindle motor including a rotor hub which is rotationally driven by a magnetic action of a rotational magnetic field generated when a current is applied to a wire wound around teeth of a stator core and a magnetic field of a magnet provided on a rotor. Herein, the stator...

20060158059 - Superconducting device comprising a cooling unit for cooling a rotating, superconductive coil: The supraconductor device contains a rotor, which can rotate about a rotational axis, with a supraconductive coil in a heat conducting coil support. The coil support comprises a central cylindrical cavity. A cooling head, which is located outside of the rotor, of a cooling unit is connected in a heat...

20060158061 - Electroacoustic transducer for a surface wave operating component: The invention relates to an electroacoustic transducer for a component operating with surface waves, comprising two electrodes having alternately arranged fingers and stub fingers, each connected to a bus bar, the opposing fingers and stub fingers being separated from one another by gaps. In this case, the position of the...

20060158062 - Surface acoustic wave chip, surface acoustic wave device, and manufacturing method for implementing the same: A surface acoustic wave chip formed with an inter-digital transducer entirely over a piezoelectric substrate. In the surface acoustic wave chip, the inter-digital transducer is extended to a rim of the piezoelectric substrate, and a partition section is provided all the way to the rim of the piezoelectric substrate to...

20060158063 - Ultrasonic transducer and ultrasonic vibration device using the same: An ultrasonic transducer includes a giant magnetostrictive rod 12 of a columnar shape which is made of a giant magnetostrictive member, and vibration plates 14 and 16 which are made of plate members having a larger diameter than that of the giant magnetostrictive rod 12 and are adhered and fixed...

20060158065 - Electroactive polymer devices for moving fluid: The invention describes devices for performing thermodynamic work on a fluid, such as pumps, compressors and fans. The thermodynamic work may be used to provide a driving force for moving the fluid. Work performed on the fluid may be transmitted to other devices, such as a piston in a hydraulic...

20060158064 - Piezoelectric sounding body and electronic device: An enclosure of a cellular phone is formed with a plurality of sound releasing holes. The inside of a portion where the sound releasing holes are provided defines an air chamber formed with a receiving portion for mounting a piezoelectric sounding element. The piezoelectric sounding element is of bimorph structure...

20060158066 - Ultrasonic sensor: An ultrasonic sensor includes an inner case mainly made of plastic and having a shape of a cylinder with a bottom portion. A conductive film is attached to the bottom portion. An electrode formed at a surface of the piezoelectric vibrator is attached to the conductive film to be electrically...

20060158067 - Surface mount type piezoelectric vibrator, oscillator, electronic device, and radio clock: The present invention is enabling to easily solder again in soldering of a surface mount type piezoelectric vibrator. An external electrode is formed by an alloy metal of Cr and Ni, namely, NiCr. Further, on the surface of NiCr, an oxidation resistant film for oxidation resistance is formed by a...

20060158068 - Piezoelectric device: There is disclosed a piezoelectric device which has a remarkably high piezoelectric characteristic and which is superior in a vibration transmitting property between a substrate and a piezoelectric portion and in which linearity of a flexural displacement with respect to a voltage is high up to a high voltage region...

20060158069 - Surface acoustic wave device: A surface acoustic wave device includes a piezoelectric substrate and interdigital electrodes disposed on the piezoelectric substrate, wherein each of the interdigital electrodes includes a main electrode layer made of Cu or an alloy that has Cu as its main component. The surface acoustic wave device also includes a tightly...

20060152092 - Stator for reciprocating motor and fabrication method thereof: A stator for a reciprocating motor includes a coil winding in which a coil is wound plural times, and fixed and insulated with a bonding material distributed between gaps of the wound coil, an insulation band formed in a circular band shape along an outer circumferential surface of the coil...

20060152091 - Transistor matrix switched reluctance variable speed motor drive: A multi-phase motor drive includes coil magnets that generate a magnetic field when energized with an electrical current. The coil magnets are configured in an electrical matrix. Switches are arranged in an electrical circuit with the coil magnets. Each coil magnet is in electrical communication with at least two of...

20060152093 - Sector drive mechanism: A sector drive mechanism includes an electromagnetic actuator including a rotor having four polarities, a C-shaped stator, and a current control portion that controls current applied to a first coil and a second coil, the C-shaped stator including a first magnetic pole magnetically excited by the first coil, a second...

20060152094 - Rotor for micro-servomotor, and micro-servomotor equipped with said rotor: A rotor for a micro-servomotor is reduced in weight and imbalance. The rotor R is provided with a molded resin member 3 having an inclined surface 3a, the resin member 3 being formed by filling an epoxy resin material between the axial end faces of permanent magnets 2 and the...

20060152095 - Controller-integrated rotating electrical machine: A controller-integrated rotating electrical machine includes: a power element disposed adjacent to a rotating electrical machine main body and controlled to perform control of energization to the rotating electrical machine main body; a control circuit disposed adjacent to the power element in the longitudinal direction and at a side opposite...

20060152096 - Electrical machine with a rotor bearing that is integrated inside the stator: The invention relates to an electrical machine and a method for assembling an electrical machine. The electrical machine includes a stator (1), which is received in a housing. The housing is closed by a housing cap (12). The electrical machine further includes a rotor (7), which includes a shaft (5)...

20060152097 - Fluid bearing motor, and disk drive mounted with same: The stop ring having a surface nearly vertical to the rotational center axis, which is projected at the inner periphery of the hollow cylinder of the rotor section, and the stepped surface of the fixed shaft secured on the chassis are opposed to each other with a predetermined slight clearance...

20060152098 - High-torque motor: A motor that delivers high force linear motion or high torque rotary motion to a moving element. The motor may include a driving brake, a driver, a holding brake and a flexible moving element. Operation of the motor may involve activating the holding brake, activating the driver to flex the...

20060152099 - Rotor-stator structure for electrodynamic machines: A rotor-stator structure for electrodynamic machinery is disclosed to, among other things, minimize magnetic flux path lengths and to eliminate back-iron for increasing torque and/or efficiency per unit size (or unit weight) and for reducing manufacturing costs. In one embodiment, an exemplary rotor-stator structure can comprise a shaft defining an...

20060152100 - Vehicle alternator having reduced windings: A stator for an electric machine includes a generally cylindrically-shaped stator core having a plurality of circumferentially-spaced and axially-extending core teeth that define a plurality of circumferentially-spaced and axially-extending core slots extending between first and second ends of the stator core. Within the core is a stator winding having a...

20060152101 - Liquid crystal display: A liquid crystal display device (L) according to the present invention comprises a liquid crystal display panel (1) having one or more wires on a substrate (1B) thereof, and a housing having holding portions (120a) to (120h) configured to hold opposing end portions of the liquid crystal display panel, wherein...

20060152102 - Stator fixing apparatus of reciprocating compressor and fabrication method thereof: A stator fixing apparatus of a reciprocating compressor comprises a first frame on which a plurality of first core blocks, each comprising a plurality of laminated stator core sheets, are radially coupled, the plurality of first core blocks being coupled to one side surface of a bobbin body, and a...

20060152103 - Rotating electric machine for vehicle: The present invention provides an automotive rotary electric machine enabling brush abrasion limit detection reliability to be increased and stable brush abrasion limit detection indication to be performed. The construction thereof is provided with a detecting terminal for sensing a brush abrasion limit when a brush has abraded to a...

20060152104 - Rotary electrical machine: A rotary electrical machine has a mechanism capable of varying an output characteristic, without increasing mechanical loss, or without consuming the electric power that does not contribute to increasing torque. The rotary electrical machine has a rotor with N pole and S pole magnets alternately and fixedly disposed thereon. An...

20060152105 - Photo-sensitive mems structure: A heat-sensitive apparatus includes a substrate with a top surface, one or more bars being rotatably joined to the surface and having bimorph portions, and a plate rotatably joined to the surface and substantially rigidly joined to the one or more bars. Each bimorph portion bends in response to being...

20060152106 - Mems scanner with dual magnetic and capacitive drive: A MEMS scanning device includes more than one type of actuation. In one approach capacitive and magnetic drives combine to move a portion of the device along a common path. In one such structure, the capacitive drive comes from interleaved combs. In another approach, a comb drive combines with a...

20060152107 - Lamb-wave high-frequency resonator: A Lamb-wave high-frequency resonator includes a comb-shaped IDT electrode for exciting a Lamb wave on one main surface of a quartz substrate. The IDT electrode is formed such that the cut angle of the quartz substrate and the direction of propagation of the Lamb wave are expressed in Euler angles...

20060152108 - Sound insulation/absorption structure, and structure having these applied thereto: A sound insulation/absorption structure, a sound insulation/absorption device, and a structure having these applied thereto and a member constituting the same, are capable of insulating or absorbing sound by stiffness control. The sound insulation/absorption structure comprises a film member, such as a polymer film or metal foil, and a frame...

20060152109 - Transconductance circuit for piezoelectric transducer: A transconductance monitoring and amplifying circuit for a piezoelectric transducer that may be used in, e.g., a motion detector system includes a FET, with the transducer (and, hence, the signal voltage reference) floating between the gate and source of the FET, as opposed to being connected to the common ground...

20060152110 - Piezoelectric thin-film resonator and filter using the same: A piezoelectric thin-film resonator includes a film laminate formed on a device substrate, the film laminate including a lower electrode, a piezoelectric film provided on the device substrate and the lower electrode, and an upper electrode provided on the piezoelectric film. At least one of the upper and lower electrodes...

20060152111 - Micro-electrical-mechanical device and method of making same: A micro-electro-mechanical device including a first substrate; a first contact disposed on a first surface of the substrate; a piezoelectric actuator disposed over the first surface of the substrate; a second contact coupled to the actuator and disposed in proximity to the first contact; a gap control mechanism disposed between...

20060152112 - Piezoelectric ceramic element and portable device: Piezo-electric ceramic transducer 1 has upper piezo-electric active layer 5 and lower piezo-electric active layer 6. Upper insulating layer 2 and lower insulating layer 3, between which upper piezo-electric active layer 5 and lower piezo-electric active layer 6 are placed, are disposed on both surfaces of piezo-electric ceramic transducer 1...

20060152113 - Piezoelectric/electrostrictive porcelain composition, piezoelectric/electrostrictive device, and method of piezoelectric/electrostrictive device: There is disclosed a piezoelectric/electrostrictive porcelain composition capable of manufacturing, at a comparatively low sintering temperature, a piezoelectric/electrostrictive body which is dense and superior in crystallinity and which has satisfactory piezoelectric/electrostrictive characteristics so that deviation of the composition is not easily generated. The piezoelectric/electrostrictive porcelain composition contains as a major...

20060145544 - Active material based actuators for large displacements and rotations: An actuator adapted to incrementally translate and/or rotate an object, the actuator comprising a body comprising a first portion, a second portion, and an opening coaxially extending from the first portion and the second portion, wherein the opening is dimensioned to accommodate a diameter or cross section of an object;...

20060145543 - Long stator motor: A long stator motor, particularly for driving a magnetic levitation transport system, includes a stator iron, inside of which grooves for accommodating cable windings are provided. At least two cable windings are placed one above the other by running at least two cables inside each groove....

20060145545 - Solenoid plunger system with an adjustable magnetic flux: A solenoid plunger system for an electropneumatic pressure transducer, comprising at least partly—in a casing which focuses magnetic field lines M, in particular in the form of an iron casing—a solenoid plunger and a core, in particular in the form of an iron core or magnetic core, wherein the solenoid...

20060145546 - Reciprocating motor: A reciprocating motor comprising an outer stator (110) having a cylindrical shape by radially stacking a plurality of lamination sheets (112) at the outside of a bobbin (160) in which a winding coil is wound; an inner stator (120) disposed in the outer stator (110) at a certain air gap...

20060145547 - Controlling an electric motor having multiple oscillatory elements: A method of controlling an electric motor includes providing an electric motor having a plurality of magnetically driven oscillatory elements having differing oscillatory characteristics, and an electromagnet having a coil arranged to drive all of the oscillatory elements. The method includes supplying an electric signal to the electromagnet, which creates...

20060145548 - Stator coil module, method of manufacturing the same, and electric rotating machine: A stator coil module facilitating the manufacture of an electric rotating machine is provided. The stator coil module is provided with a stator coil (1), a cooling pipe (2), and a mold member (3). The cooling pipe (2) is provided separately from the stator coil and is disposed along it....

20060145549 - Electric motor position sensing device and method: An electric motor includes a rotation shaft and an armature coupled to the rotation shaft. A commutator is coupled to the rotation shaft and is electrically connected to the armature. At least two power brushes are fixed relative to the commutator for electrically coupling the armature to a power source....

20060145550 - Engine generator: Mounts can be provided at the four corners of a bottom portion of an engine generator. Projections for mounting handles can be provided at a top portion of the engine generator in vertical alignment above the mounts. The bottom face of each mount can be formed with a fitting groove...

20060145551 - Bearing assembly having a mechanical component and using attractive magnetic forces: A magnetic bearing assembly, either radial or linear, utilizes attractive magnetic forces between inner and outer components of the assembly. The assembly includes a mechanical device for controlling relative movement between the components in first and second directions, while permitting relative movement between them in a third direction. At least...

20060145552 - Magnetic bearing assembly using repulsive magnetic forces: A magnetic bearing assembly utilizes repulsive magnetic forces between components, having magnetic sources, of the bearing at two or more gaps which are angled with respect to an axis of the inner component. Each gap provides force vectors in two directions, while allowing for relative movement of the components in...

20060145553 - Method and apparatus for compensating a line synchronous generator: A three-phase line synchronous generator with an exciter and generator stage. The exciter stage includes an exciter stator having n poles and an exciter rotor having n poles and disposed for rotation within the exciter stator, and the generator stage includes a generator stator having n poles and a generator...

20060145554 - Permanently excited electrical machine: The present invention relates to an electrical machine, in particular a direct current motor for vehicles, having a multi-pole stator which has an annular pole housing (1) and a plurality of magnets (2) that are located on the inside face of the pole housing (1), and having a magnet splinter...

20060145555 - Rotor-stator structure for electrodynamic machines: A rotor-stator structure for electrodynamic machinery is disclosed to, among other things, minimize magnetic flux path lengths and to eliminate back-iron for increasing torque and/or efficiency per unit size (or unit weight) and for reducing manufacturing costs. In one embodiment, an exemplary rotor-stator structure can comprise a shaft defining an...

20060145556 - Motor: A motor has a rotor core with a plurality of first non-magnetic layers and a plurality of second non-magnetic layers. The rotor core has a plurality of magnets. The first and second non-magnetic layers are positioned to cancel n-th order harmonics. Therefore, a specific order, for example 5-th order and...

20060145557 - Rotor for an electric motor: The invention relates to a rotor for an electric motor, especially an electric line-start motor, comprising spaces (4 to 7) which receive permanent magnets (10 to 13) and extend in an axial direction, and spaces (20 to 25) that accommodate conductor rods and extend in an axial direction. In order...

20060145558 - Alternator for a vehicle: An ac generator for a vehicle is constituted so that the thickness in insulation layers of conductors in the slot-in portions located in the slot is smaller than the other to permit a metal portion of conductors to be much larger and to increase a density of conductors in the...

20060145559 - Electronically commutated single-phase motor: The present invention refers to an electronically commutated single phase motor comprising a rotor (2; 202; 302) and a stator (3; 203; 303) with an asymmetrical wound yoke (4; 204; 304) and comprising at least a stator phase (5; 205; 305) energized via an electronic commutation circuit in accordance with...

20060145560 - Arrangement for protecting an electric machine: The object of the invention is an arrangement for an alternating-current machine that can be connected to an inverter and includes windings located in grooves and insulated from the plate core of the machine. According to the invention, an electrically conductive shield is fitted between the windings and the plate...

20060145561 - Three-phase synchronous reluctance motor: To provide a three-phase synchronous reluctance motor which allows its stator to be formed compact by means of reduction in the width of a part of a back yoke portion of a stator while avoiding excessive increase in the magnetic resistance of the magnetic path of the back yoke portion....

20060145562 - A stator structure of an axial gap rotating electrical device: A stator structure of an axial gap rotating electrical device is described that enables the controlling of a loop current generated at the contact area between a laminated surface of stator teeth and that of a stator back core. The stator structure may also inhibit eddy-current loss and eventually iron...

20060145563 - Stator arrangment for an electric machine: The invention relates to a stator arrangement for an electric machine having a stator ring that is closed at its inside circumference and has stator poles at its outside circumference, wherein the stator ring is built up of a plurality of substantially identical T-shaped segments and wherein each of the...

20060145564 - Motor carbon brush assembly: A motor carbon brush assembly is composed of an insulated holder, a first electrically conductive member, a resilient member, a second electrically conductive member, a carbon brush, a spring, and a rear cover. The resilient member includes a contact portion elastically deformable under pressure. The first conductive member and the...

20060145565 - Brush mounting plate with brush guiding plates: A brush mounting plate for a universal motor includes U-shaped brush guiding plates (4) for radially guiding carbon brushes (3) and having radially offset guiding plate feet (5) which extend through associated mounting holes (6) formed in the brush mounting plate (1), with at least two guiding plate feet (5)...

20060145566 - Frameless torque motor with a transport securing device: A frameless torque motor and with a transport securing device wherein the torque motor includes a ferromagnetic primary element and a secondary element, having magnets oriented in a direction toward the primary element, wherein the primary element and the secondary element are fixed to each other by a magnetic force...

20060145567 - Rotor device capable of dissipating heat and resisting foreign objects: A rotor device capable of dissipating heat and resisting foreign objects includes a hub and a shield case. The hub has a closed wall and a hub wall connecting with the closed wall and the closed wall at least has a hub hole. The shield case is mounted in the...

20060145568 - Surface acoustic wave device: A surface acoustic wave device is provided. The surface acoustic wave device includes a piezoelectric substrate and an IDT which is disposed on the piezoelectric substrate and made of Al or an alloy containing Al as a main component and using an SH wave as an excitation wave, wherein the...

20060145569 - Surface acoustic wave device: A surface acoustic wave device has a piezoelectric substrate and an IDT formed on the piezoelectric substrate, and uses an excited wave as an SH wave. The piezoelectric substrate is a quartz plate in which a cut angle θ of a rotated Y-cut quartz substrate is set in the range...

20060145570 - Sound detecting mechanism: A sound detecting mechanism is provided which forms a diaphragm with a required thickness by thickness control and yet restrains distortion of the diaphragm to provide high sensitivity. The sound detecting mechanism comprises a pair of electrodes forming a capacitor on a substrate A in which one of the electrodes...

20060145571 - Piezoelectric transformer provided with internal copper electrodes: The invention concerns a piezoelectric transformer with at least two ceramic elements and a copper-bearing electrode located between the two ceramic elements. The invention recommends to choose the ceramic elements from a compound containing Pb(ZrxTi1-x)O3+y Pb(Mn1/3Nb2/3)O3....

20060145572 - Method for operating a piezoelectric motor, and a piezoelectric motor having a startor in the form of a hollow-cylindrical oscillator: The invention relates to a method for operating a piezoelectric motor having a stator in the form of a hollow-cylindrical oscillator, the at least one front side of which has frictional contact with a rotor and which comprises standing wave generators. According to the invention the hollow cylinder is set...