|
Match
|
Document |
Document Title |
|
|
6229243 |
Rotor construction for controlled-pole electric machines
A rotor for use in a high speed controlled-pole electric machine can include a rotor core having an exterior surface; a first layer of remagnetizable magnetic material positioned about the rotor...
|
|
|
6229239 |
Electrical machine with double excitation
A double excitation, rotating electrical machine mounted on a shaft includes a rotor whereof the magnetic circuit carries at least one excitation element and a stator whereof the magnetic circuit...
|
|
|
6225727 |
Rotor for dynamo-electric machine and method for magnetizing magnetic bodies thereof
A rotor for a dynamo-electric machine includes a rotor coil, a first pole core body disposed so as to cover the rotor coil formed with a plurality of first claw-shaped magnetic poles evenly spaced...
|
|
|
6225724 |
Motor and motor rotor having embedded permanent magnets
A motor embedded with magnets having good properties and productivity. A rotor of this motor includes a rotor core with laminated rotor core plates punched out of an electromagnetic steel plate and...
|
|
|
6222288 |
Electric motor
The invention relates to an electric motor comprising a rotor and a stator, one of the two being a slotted armature comprising a number R of slots, while the other comprises a number 2P of magnetic...
|
|
|
6218753 |
Motor using rotor including interior permanent magnet, and apparatus-driving-unit employing the same motor
The motor includes the following elements: a stator-core having plural teeth, and a yoke that links the teeth, coils wound on the teeth in a concentrated winding form, and a rotor with interior...
|
|
|
6215207 |
Torque motor having uniform torque output characteristics
A torque motor comprises a rotor having a pair of permanent magnet groups, and a pair of stator cores. Each magnet group includes a plurality of plate or rod-shaped permanent magnets arranged in a...
|
|
|
6211585 |
Stepping motor type indicator having a pole tooth with reduced end area
A stepping motor type indicator provided with unambiguous stable points having a holding force in a non-excited condition sufficient to suppress undesirable movements of a pointer. The stepping...
|
|
|
6211595 |
Armature structure of toroidal winding type rotating electric machine
A structure of an armature of a toroidal winding type rotating electric machine, such as a motor or generator, which constitutes at least a member of a stator or a rotor is disclosed. The structure...
|
|
|
6208055 |
Electromagnetic transducer and electronic device including the transducer
The invention provides an electromagnetic transducer which can improve conversion efficiency by reducing the weight of a rotor and thinning a rotor shaft to reduce both size and weight. An...
|
|
|
6208059 |
Rotor for an electric machine, retainer for retaining a winding in a slot in a rotor, and method of manufacturing a rotor
A rotor for an electric machine, the rotor comprising: a rotor body having a plurality of axially extending, circumferentially spaced slots therein; at least one winding conductor disposed in each...
|
|
|
6204584 |
Low cogging torque brushless motor rotor
A low cogging torque permanent magnet rotor is provided including a shaft and a permanent magnet mounted on the shaft. A gap is provided between the shaft and the magnet near a boundary between the...
|
|
|
6204589 |
Strain-matched hub for motor/generator
A strain-matched hub for a motor/generator. The motor/generator preferably includes a cylindrical rotor surrounding a stator, and of larger diameter than a shaft. The hub, formed of a single...
|
|
|
6204588 |
Rotor capable of being used as a recording media
An electric motor having a pancake construction stator and rotor poles that are formed by photolithography. The stator and rotor can be formed from an amorphous material, thereby reducing grain...
|
|
|
6204580 |
Direct gas cooled rotor endwinding ventilation schemes for rotating machines with concentric coil rotors
A cooling gas ventilation circuit for an endwinding of a rotary machine having a rotor and a plurality of coils seated in radial slots provided in the rotor, the coils each comprising a plurality...
|
|
|
6199265 |
Method of securing magnets of revolving electric machine
When a magnet cover 21 is press-fitted into the inner peripheral surfaces of magnets 18 annularly arranged on the inner peripheral surface of a hollow cylindrical yoke 11 having at an end thereof a...
|
|
|
6201335 |
Rotor structure
A rotor structure comprising a rotor coil for generating a magnetic flux, a pole core which covers the rotor coil and consists of a first pole core body and a second pole core body, each having a...
|
|
|
6198181 |
Motor design methods and motors fabricated therefrom
A motor which has optimal performance along with minimal performance sensitivity with respect to manufacturing variations is described. Performance is defined by a critical-to-quality relationship....
|
|
|
6198195 |
High efficiency motor for low velocity, high volume fan and other applications
A high efficiency motor for low velocity and high volume fans and other applications includes an armature, a stator and a motor shaft. The armature is made from plates that collectively have a...
|
|
|
6198194 |
Segmented rotor for an electric machine
A rotor (10) for an electric machine (40) includes a first elongated rotor segment (12) having a plurality of axially extending rotor poles (20) arranged in a circular array about a central axis...
|
|
|
6191517 |
Brushless synchronous rotary electrical machine
A brushless synchronous electrical machine includes a rotor rotating about a rotor axis, and a stator that includes at least one set of magnetically active stator cores projecting radially outward...
|
|
|
6191516 |
Electric motor
|
|
|
6191510 |
Internally damped stator, rotor, and transformer and a method of making
The present invention provides internally damped stators, rotors, and transformers; internally damped cores from which they may be made; and a method of making the aforementioned.
|
|
|
6188152 |
Motor and hard disk drive having a reduced vibration motor
It is an object of the present invention to provide a motor capable of reducing a loss as much as possible, and securing minimum vibration proof performance and reliability by definitely defining...
|
|
|
6186756 |
Shaft structure in screw rotor of screw fluid assembly
A rotor 1 forming screw teeth is projectingly provided at its outer end 2 on the axis thereof with a center shaft 3. The center shaft 3 is provided at its outer end 4 with a smaller-diameter shaft...
|
|
|
6181048 |
Method for selectively coupling layers of a stator in a motor/generator
An axial field motor/generator having a rotor that includes at least three annular discs magnetized to provide multiple sector-shaped poles. Each sector has a polarity opposite that of an adjacent...
|
|
|
6177750 |
Rotating assembly construction for high speed induction motor
A shaft or shafts are connected to a rotor core of a dynamoelectric machine without the need for a central hole in the laminations of the core. The shaft is connected to the core by attaching the...
|
|
|
6177749 |
Polygonal shaft hole rotor
A laminated rotor for an induction motor has a plurality of ferro-magnetic laminations mounted axially on a rotor shaft. Each of the plurality of laminations has a central aperture in the shape of...
|
|
|
RE37027 |
Electric motor with combined permanent and electromagnets
|
|
|
6177745 |
Permanent magnet rotor type electric motor
In a permanent magnet rotor type electric motor in which a permanent magnet is embedded in a rotor, a permanent magnet used for a magnetic pole of one polarity in a rotor core and another permanent...
|
|
|
6174149 |
Scroll compressor with captured counterweight
A counterweight is attached to a rotating shaft by a slip fit, combined with two axially abutting surfaces to hold the counterweight. The counterweight is preferably held at one face by a ledge...
|
|
|
6169353 |
Method for manufacturing a rotor having superconducting coils
A method and apparatus for manufacturing a rotor for use with a rotating machine is provided that employs a superconducting coil on the rotor. An adhesive is applied to an outer surface of the...
|
|
|
6169352 |
Trapped field internal dipole superconducting motor generator
A motor generator including a high temperature superconductor rotor and an internally disposed coil assembly. The motor generator superconductor rotor is constructed of a plurality of...
|
|
|
6166473 |
Dynamo-electric machine and generator and motor wherein the machine is used
|
|
|
6166475 |
Brushless motor and magnetic recording-reproducing apparatus using the same
A brushless motor comprises a stator including substrates protruding radially with respect to a center axis and coils wound on the substrates, a rotor including a cover covering the stator, having...
|
|
|
6163097 |
Motor generator including interconnected stators and stator laminations
An axial field motor/generator having a rotor that includes at least three annular discs magnetized to provide multiple sector-shaped poles. Each sector has a polarity opposite that of an adjacent...
|
|
|
6160330 |
Three-phase stepping motor and driving method therefor
A three-phase stepping motor comprising: a rotation shaft rotatably supported by a pair of bearings provided in predetermined places of a housing so as to be in opposition to each other; a...
|
|
|
6157102 |
Armature core and brush-equipped DC motor using the same
An armature core includes a central circular portion and a plurality of equi-spaced extensions extending from the central circular portion outwardly in the radial direction. The extensions and the...
|
|
|
6157112 |
Brushless DC motor structure
A brushless DC motor, having a rotor with a cylindrical rotor magnet supported rotationally by a shaft held by bearings mounted on a substantially planar base plate, and a stator supported by the...
|
|
|
6157110 |
Rotor
A rotor for a fuel pump motor has a shaft and a rotor core fitted to the shaft. A commutator is located on the shaft adjacent one end of the rotor core. Windings wound around poles of the rotor...
|
|
|
6157109 |
Dynamoelectric machine with ferromagnetic end winding ring
A dynamoelectric machine such as a motor or generator has an end winding ring of ferromagnetic material in an area of the end winding portions of the stator and/or rotor winding. The end winding...
|
|
|
6153960 |
Small motor with a coil having a continuously wound wire
When winding an armature coil start S of a winding is entwined around a riser R1, the wire is wound via a riser R4 around a salient pole P1 adjacent to the riser R4 and an opposed salient pole P2...
|
|
|
6153953 |
Multi-phase PM-type stepping motor
A multi-phase PM-type stepping motor comprising: a rotor constituted by a cylindrical permanent magnet with N poles and S poles magnetized alternately on an outer circumferential surface of the...
|
|
|
6150747 |
Composite stator and rotor for an electric motor
In the embodiments described in the specification, a stator for an electric motor has an outer ring member made of resin material and supported from a frame by stator caps and a flanged inner...
|
|
|
6147428 |
Rotor of electric motor
It is an object to provide a rotor of an electric motor in which an adverse influence due to through holes for caulking and fixing is reduced, and moreover, the number of parts is small and an...
|
|
|
6147429 |
Electrical machine with double excitation, especially a motor vehicle alternator
A rotary electrical machine such as a motor vehicle alternator comprises a stator and a rotor. The stator has at least one armature winding in at least one pair of stator slots. The rotor includes...
|
|
|
6144132 |
Permanent magnet motor
A permanent magnet motor is provided comprising a plurality of individual permanent magnets 7 threaded inside of a rotor, an N pole magnetic circuit commonly connected to N poles of the plurality...
|
|
|
6144130 |
Structure of rotor for generators and method of manufacturing the same rotor
The present invention provides a structure of a rotor for a generator in which a rotor capable of being ground very easily with a high accuracy is incorporated. This structure of a rotor comprises...
|
|
|
6140736 |
Anti-loosening outer rotor means for high-torque outer-rotor type electric motor
An anti-loosening outer rotor device, adapted for use in an outer-rotor type electric motor, includes: a cylinder member having a plurality of recesses radially recessed in an inside wall of the...
|
|
|
6140732 |
Armature coil conductor and method of manufacture therefor
The lead portions have oval cross sections such that the dimensions of the cross sections of the lead portions parallel to the circumference of the armature are smaller than those of the straight...
|