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6894413 |
Permanent magnet dynamo electric machine, and permanent magnet synchronous generator for wind power generation
A dynamo electric machine includes a rotor having magnetic poles with permanent magnets and a stator having armature windings concentratedly wound around teeth. When the number of pole pairs of the...
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6889420 |
Method for making a stator for an electric machine
An electric machine such as a direct current motor or generator in which a stator is formed using a set of electrically conductive blade structures disposed about an inner axis of a stator core....
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6891306 |
Rotary electric motor having both radial and axial air gap flux paths between stator and rotor segments
In a rotary electric motor, a stator contains a plurality of separate electromagnet core segments disposed coaxially about an axis of rotation. The core segments are affixed, without ferromagnetic...
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6891300 |
Rotor of induction starting synchronous motor
A rotor of an induction starting synchronous motor includes permanent magnets and induction coils having both ends short-circuited in a core. The permanent magnets are arranged side by side in a...
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6888272 |
Unipolar transverse magnetic flux machine
In a unipolar transverse flux machine, to attain a modular structure favorable in terms of production, the stator and the rotor each have the same number of identical stator modules and rotor...
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6888283 |
Interior permanent magnet synchronous motor
A stator ( 10 ) for a motor according to this invention has a substantially cylindrical shape and is disposed coaxially with respect to a substantially cylindrical rotor ( 20 ) which has permanent...
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6888286 |
Stator coil assembly for superconducting rotating machines
A stator support system for supporting a stator coil assembly includes an inner support tube having an outer surface; spaced windings supported on the inner support tube with spaces between...
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6886236 |
Stator for an automotive alternator
A stator for an automotive alternator is provided with good installation characteristics for stator coils and which can lower noise. The stator includes a stator core in which a plurality of slots...
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6885128 |
Low-profile stepping motor with two coils arranged flush with each other horizontally
A low-profile stepping motor has a stator assembly structured such that first and second coil units are disposed flush with each other horizontally and are sandwiched between upper and lower stator...
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6882066 |
Unipolar transverse flux machine
In a unipolar transverse flux machine, in particular a motor, having a rotor, which is comprised of two coaxial, ferromagnetic, toothed rotor rings, and a permanent magnet ring, which is magnetized...
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6882080 |
Permanent magnet synchronous motor
A stator core is formed into a cylindrical shape, 3n teeth are disposed at a predetermined pitch in a circumferential direction where n is a positive integer, and slots are formed between adjacent...
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6879078 |
Electric motor with external rotor
An electric motor comprises a stator fixedly mounted to a shaft and a rotor, surrounding the stator, rotatably mounted to the shaft. The shaft is stiffened by a plurality of plates mounted to the...
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6876120 |
Inner core structure of a rotary transformer-type resolver
An inner core 62 and a resolver rotor 63 are secured to a rotary shaft 68 so that they are coaxial. A spacer 2 , is provided between the inner core 62 and the resolver rotor 63 . The...
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6876115 |
Magnetic field type of rotary electric apparatus
Several embodiments of rotating electrical machines where cogging torque is reduced as well as the distortion of the back emf and improve torque characteristic with reduced torque ripples by...
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6873082 |
Stator assembly including a core slot insert member
A stator assembly for a dynamoelectric machine in accordance with the present invention includes a stator core having a plurality of core slots in a surface thereof. Each of the core slots define a...
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6873683 |
Axial flux motor driven anode target for X-ray tube
An X-ray tube comprises a cathode, an anode target assembly and an axial flux motor having a rotor and a stator. The stator is positioned along a transverse axis parallel to the rotor axis. The...
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6873077 |
Shell-shaped magnet
Cup-shaped magnet for electric motors having two face surfaces, two lateral surface, and two top surfaces, which are curving between the face surfaces along the lateral surfaces, whereby the...
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6870292 |
Stator for motor
A stator for a motor is a segmented type including a plurality of stator segments. Each stator segment includes a core segment forming a stator core, a stator winding including a first winding...
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6870295 |
Oscillating motor and motor control apparatus and method
An oscillating motor is provided which can be reciprocally rotated within a predetermined rotation region without any conversion device for changing to a linear movement, and which can be simply...
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6865797 |
Apparatus for locating and stacking punchings for a generator core
Punchings for stator core laminations of a generator stator frame are disposed on a rotary table to form annular arrays of punching, with each layer staggered relative to adjacent layers. A mandrel...
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6864614 |
Permanent magnet electric generator
The permanent magnet electric generator includes a plurality of ferromagnetic bars disposed in spaced apart relation about the circumference of a non-magnetic, annular rotor body circumferentially...
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6864606 |
Apparatus having an electrical machine
An apparatus such as a vehicle having a generator. The apparatus includes a rotational shaft having a longitudinal axis, a stator having a core and windings disposed on the core, and a rotor...
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6861780 |
Motor's stator for a household fan
The invention relates to a motor's stator for a household fan whose silicon steel sheets have an enlarged middle hole for increasing from 16 slots to 24 slots along the circumference of the middle...
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6858964 |
Stator iron core of electric motor, manufacturing method thereof, electric motor, and compressor
A stator iron core of an electric motor including plural magnetic pole segments. Each of the pole segments include a back yoke portion, a teeth portion projected from the back yoke portion, a...
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6858965 |
Stator for a synchronous machine
Stators for harmonic motors are disclosed. The stators are easy to assemble and include a laminated armature made of sheet metal plates. The laminated armature is formed of a substantially...
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6856065 |
Electric rotary machine having positioning ring for securing salient poles in place
An electric rotary machine includes a stator comprising: a stator ring; a plurality of discrete salient poles each comprising a bobbin with guide grooves and a pole tooth with a groove, disposed...
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6849985 |
Electrical machine stator and rotor
A stator or a rotor for an electrical machine comprises a plurality of circumferentially separated, radially extending teeth, wherein each tooth having a single winding and is provided with an...
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6848165 |
Electric rotating machine and manufacturing method thereof
An electric rotating machine is equipped with a middle core, an outer core disposed outside the middle core which rotates relative to the middle core, and an inner core disposed inside the middle...
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6847149 |
Brushless motor
The motor ( 10 ) has a rotor ( 2 ) which can rotate around a rotation axis (A), and a specific number (N 1 ) of magnetic poles ( 12 ). Furthermore, the motor ( 10 ) has a stator ( 4 ) which is...
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6847285 |
Interlock tabs for laminations
A laminated plate assembly in which the laminations in a stack are secured together by means of one or more interlocks or tabs that project from the uppermost lamination in the assembly through...
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6844645 |
Permanent magnet motor rotor having magnetic permeable material for enhanced flux distribution
A permanent magnet motor has rotor structure that includes magnetically permeable backing material attached to magnets for enhancing flux density distribution. A plurality of permanent magnets are...
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6844655 |
Expandable flat winding for rotating electric machine fields
A winding module for an electric machine is provided wherein the winding module comprises a flat field winding that is angled at an end turn and wherein a vertex of the flat field winding is...
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6844653 |
Stator design for permanent magnet motor with combination slot wedge and tooth locator
A segmented stator for a permanent magnet motor. The stator includes a plurality of stator segments forming an annular stator yoke and a plurality of stator teeth extending from an edge of the...
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6844652 |
Rotor structure of line-start permanent magnet synchronous motor
The invention provides a rotor structure of line-start permanent magnet (LSPM) synchronous motor that includes a shaft; four fan-shaped magnetic poles each having a first eccentric circular arcs of...
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6841915 |
Multiple-pole electric motor and method of producing the same
The invention relates to a multi-pole electric motor with a rotor and a stator. Said stator consists of a plurality of coils and stator plates ( 1, 2, 3, 4 ) which are magnetically separate from...
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6841908 |
Stator core for a magnetic bearing and the method of manufacturing it
Stator cores for a homo-polar magnetic bearing, wherein toothed ends of stator cores around a rotor form N poles and S poles adjacent in the axial direction, and the method of manufacturing them....
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6841916 |
Axial flux electromotive generator having rotor magnets and shaped core assembly
An improved electric motor design wherein the stator and rotor configuration is arranged to produce a core flux efficiently shaped and utilized to enhance motor torque without substantially...
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6838800 |
Stator and method for producing the stator
The stator includes core back iron cores disposed on outer circumferential sides between a plurality of teeth iron cores disposed at regular intervals of a predetermined distance in a predetermined...
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6838790 |
Stator of two rotor single stator type electric motor
A stator for use in a two rotor single stator type electric motor includes a stator core including a plurality of stator teeth that are circumferentially arranged around a common axis leaving a...
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6838798 |
Permanent magnet type rotating electric machine
In a permanent magnet type rotating electric machine comprising a stator of which concentratedly wound armature windings are disposed in a plurality of slots formed in a stator core so as to...
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6836045 |
Electrical motor
An electric motor is equipped with a rotor having multiple rows of slits arranged along a radial direction. A permanent magnet is buried only in some of the slits, namely the ones closest to the...
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6833649 |
Electric rotary machine
An electric rotary machine is provided, in which a stator armature includes a stator ring that encloses a plurality of salient poles each with a pole tooth thereby forming a magnetic circuit, and...
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6829815 |
Method for producing a rotor or stator of an electrical machine from sheet-metal blanks
Sheet-metal blanks for rotors or stators of electrical machines are cut from rolled sheet-metal strips with a magnetic preferential direction and layered to form a laminated rotor core or laminated...
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6831385 |
Stator core for a magnetic bearing
Stator cores for a homo-polar magnetic bearing, wherein toothed ends of stator cores around a rotor form N poles and S poles adjacent in the axial direction, and the method of manufacturing them....
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6819025 |
Core of rotation apparatus, method for manufacturing core, and rotation apparatus
A motor includes a stator having magnets, a rotor having teeth, a commutator secured to the rotor, and brushes. A coil is wound about each tooth. The commutator is connected to the coils. The...
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6819024 |
Iron core of rotating-electric machine and manufacturing method for the same
An iron core of a rotating-electric machine and a manufacturing method for the same permit a uniform curvature to be easily obtained over an entire circumference of the iron core. The iron core has...
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6812661 |
Multiphase motor having winding connections specific to respective operating speed ranges
A permanent magnet motor includes salient pole stator cores. The poles and/or linking portions therebetween are wound with a plurality of winding coil sets. Mutually exclusive speed ranges are...
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6812600 |
Motor for use with thin type inner rotor and disk apparatus
A motor having a rotor with a plurality of magnetic poles arranged in an arch or circular shape and a stator in which coils are disposed on the magnetic teeth of a stator core having a plurality of...
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6812611 |
Permanent magnet type electric rotating machine
A PM-type electric rotating machine comprises a rotation axis, a rotor that rotates together with the rotation axis and a stator that rotatably supports the rotation axis. The rotor has a...
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6812614 |
Rotor for a synchronous motor defined by a hyperbolic function
A rotor for a synchronous motor capable of increasing output torque and reduce inductance. An outer periphery of each pole of the rotor in a cross section perpendicular to an axis of the rotor is...
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