Matches 51 - 100 out of 125 < 1 2 3 >


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US20070145855 MOTOR DEVICE UTILIZING MAGNETIC FORCE TO DRIVE A ROTOR  
The present invention relates to a motor device utilizing magnetic force to drive a rotor. The motor device includes a main body, a rotor and a controlling unit. The main body has two openings and...
US20070103026 Rotor  
A rotor, used particularly in a rotating tool for machining workpieces, includes a rotor base body with locations, which are formed on the periphery thereof in an interspaced manner and which are...
US20080030094 DYNAMOELECTRIC MACHINE ROTOR AND METHOD FOR REDUCING TORQUE RIPPLE  
Disclosed herein is a dynamoelectric machine rotor. The rotor includes, a plurality of first cavities positioned near a circumferential surface of the rotor, each first cavity receptive of at...
US20120212098 ELECTRIC MACHINE, HYDRAULICS UNIT  
The invention relates to an electric machine (2), comprising at least one rotor shaft (3) that is rotatably mounted in a housing (4) by means of at least one rolling body bearing (5), wherein at...
US20070188034 Electric motor and fan unit employing the same  
A ring-shaped member is secured to a shaft of a motor between a portion of the shaft connected to a rotor and a sleeve accommodating the shaft and impregnated with lubricating oil. The ring-shaped...
US20070273232 ROTOR HUB AND ASSEMBLY FOR A PERMANENT MAGNET POWER ELECTRIC MACHINE  
A rotor assembly for use in an electric motor or generator where the mass of the rotor assembly is reduced with respect to conventional rotor assemblies. In addition, the rotor assembly is...
US20080240706 ACTUATOR  
An actuator includes a rotor, a stator containing the rotor, and a bearing to support the rotor to be rotatable with respect to the stator about the central axis of the rotor and an axis...
US20060097604 Electric motor and motor-driven compressor  
An electric motor, which has a stator and a rotor including a permanent magnet, has a guide for guiding movably in an axial direction of the rotor and an actuator which is operable to move the...
US20050099080 Rotor for electric rotary machine  
A rotor for an electric rotary machine includes a rotatable rotor body, a plurality of magnet portions provided at the rotor body in circumferential direction with a certain interval, and a...
US20100086329 LASER SCANNING UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME  
Disclosed herein are a laser scanning unit and an image forming apparatus having the same. The laser scanning unit may include a polygon minor connected to a rotor of a driving motor, a member...
US20080246365 Mp-a and Mp-t Machines, Multipolar Machines for Alternating and Three-Phase Currents  
A machine (FIG. 3B) includes inner and outer stator (5 and 6) and a rotor (2) located therebetween. The rotor includes a wall with a constant thickness and an elongates S-ribbon (172) overlapping...
US20130241337 Electrical Machines and Electrical Machine Rotors  
Electrical machine rotors and electrical machines are disclosed. The electrical machine rotors may include a shaft, a pair of permanent magnets arranged to form a magnetic pole on the rotor, a...
US20080143199 HIGH POWER DENSITY COOLING OF ELECTRICAL MACHINES USING CERAMIC TUBES OF HIGH THERMAL CONDUCTIVITY  
A high power density generator contains an armature structure having a plurality of conductors and at least one heat transfer tube thermally coupled to the conductors. The tube is hollow so as to...
US20080296991 SYNCHRONOUS RELUCTANCE MOTOR  
A synchronous reluctance motor is described. The synchronous reluctance motor includes a core configured to rotate about a central axis and having first and second groups of flux barriers formed...
US20060267447 Rotor for an electric machine  
A rotor for an electric machine includes a rotor carrier (16) having a cylindrical axial support portion (18) which extends axially with respect to an axis of rotation of said rotor, a sheet pack...
US20070290571 Spindle Motor  
A spindle motor can include a base; a bearing housing supported on the base and having a bearing therein; a rotating shaft rotatably supported by the bearing; a stator installed around the bearing...
US20070252486 MOTOR AND MANUFACTURING METHOD THEREFOR  
A motor may include a rotor shaft, a rotor provided with a rotor magnet, a stator, an output shaft part of the rotor shaft which may be protruded from an end portion on an output side of the...
US20070114865 Oilless bearing type motor with function of preventing oil leakage  
An oilless bearing type motor with a function of preventing oil leakage, wherein the motor includes an oilless bearing supporting a rotational shaft to be rotatable, includes a rotor of which the...
US20080218008 Rotor and Stator Assemblies that Utilize Magnetic Bearings for Use in Corrosive Environments  
Rotor and stator assemblies that utilize magnetic bearings for supporting the rotor shall during operation can be suitably used in corrosive environments, such as sour gas. The rotor and stator...
US20080296997 Rotor for rotating electrical machine  
A rotor body for an electric motor is comprised of connecting outer peripheral portions of first and second flange members made of electrically conductive material to the opposite ends of a...
US20060158053 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...
US20130113335 ROTOR HOUSING FOR EASY AND SAFE ASSEMBLING AND METHOD FOR ASSEMBLING MOTOR SET USING THE ROTOR HOUSING  
The present invention relates to a method for assembling a motor set that includes: coupling a rotor housing having a plurality of operating holes to a stator having shaft bushings with holes...
US20120248918 ROTOR FOR ELECTRIC ROTATING MACHINE AND METHOD OF MANUFACTURING THE SAME  
A rotor includes a rotor core comprised of steel sheets that are laminated in the axial direction of the rotor core and a rotating component configured to rotate together with the rotor core. Each...
US20050140237 Rotary motion  
This invention relates to an electric motor design, which uses the design introduced in U.S. Pat. No. 6,060,798 entitled “Straight Motion” issued May 2000, with certain improved variations. More...
US20060208604 Synchronous electric motor structure, particularly for washing machines with a rotary drum kinematically connected to the motor through a belt and pulley link  
The invention concerns a synchronous electric motor (3) particularly for washing-machines (1) and similar household appliances with rotary drum (2) kinematically connected to the motor (3) through...
US20110260561 INDUCTION MOTOR  
Exemplary embodiments of the present invention relate to an induction motor including a stator having a circular cross-section and an inner passage having a longitudinal axis defining a bore, a...
US20050201876 STRUCTURE OF THE ROTATING MEMBER  
In the structure of the rotary member fixing the windmill, propeller, fan, impeller and so forth on the rotary axis of the motor, having the foresaid tubular boss located at the center of the...
US20080227648 Winding for Use in High Temperature Superconducting Generator  
A winding for use in a superconducting electric generator having a rotating rotor assembly surrounded by a non-rotating stator assembly is provided. The winding comprises at least one conductor...
US20110175364 Magnet assembly  
A magnet assembly is disclosed. The magnet assembly includes a base element and a magnet attached to a first surface of the base element. A second surface of the base element opposite to the first...
US20080164782 Machine Device with Thermosiphon Cooling of Its Superconductive Rotor Winding  
A motor has a rotor, rotating about an axis, with a superconductive winding which is coupled to a central refrigerant cavity of the rotor via a winding support in a thermally conductive manner....
US20070138881 MOTOR ATTACHED WITH TORQUE TRANSMISSION MEMBER  
In fixing the rotor holder and the torque transmission member, a lower surface projection is arranged at the lower surface of the torque transmission member, and thermal deformation is performed...
US20070132330 Fan assemblies employing LSPM motors and LSPM motors having improved synchronization  
A fan assembly includes at least one fan blade for moving air and a line-start permanent magnet (LSPM) motor having a shaft. The fan blade is coupled to the shaft of the line-start permanent...
US20090278419 METHODS FOR PRODUCING EVEN WALL DOWN-HOLE POWER SECTIONS  
Embodiments of the present invention provide methods for manufacturing an even-wall rotor or stator that do not suffer from drawbacks of the prior art. Even-wall rotors or stators produced...
US20130140942 SPINDLE MOTOR  
There is provided a spindle motor including: a shaft rotatably supported by a sleeve; and a rotor hub fixedly installed on an upper end portion of the shaft, wherein the shaft includes a burr...
US20080174191 Brushless motor  
A rotary shaft of a rotor including a magnet with a plurality of magnetic poles arranged at equal intervals on an outer circumference is supported at both ends by bearings. By externally fitting...
US20120181895 PERMANENT MAGNET ROTOR OF MOTOR  
A permanent magnet rotor of a motor including a rotor core and permanent magnets. The rotor core includes a central core, a plurality of sectional cores, and a connecting mechanism. The sectional...
US20080036331 Rotating electric machine  
A rotating electric motor includes a rotary shaft capable of rotation, a stator core formed in a cylindrical configuration, a rotor core fixed to the rotary shaft, a magnet set at the rotor core...
US20080007131 Electric machine with interior permanent magnets  
An electric machine is disclosed herein comprising a stator and a rotor opposing the stator. A plurality of slots are formed in the rotor, each of the plurality of slots including a stator side...
US20140265718 ROTOR CORE AND METHOD OF MANUFACTURING THE SAME  
A method of manufacturing a rotor core includes a first process of punching out punched holes 22, 23 forming outlines of keys 13, 14 in a thin metal strip 18, the holes 22, 23 including inside...
US20140145537 ELECTRIC MOTOR HAVING AN APPROXIMATED ELLIPSOID SHAPED ROTOR  
In one embodiment, a motor has a rotor with an approximated ellipsoid shape defined by a plurality of lattice lines and a plurality of lattice points. The motor has a matching stator that is...
US20120161572 ELECTROMAGNETICALLY-COUNTERED ACTUATOR SYSTEMS AND METHODS  
Various electric motor systems are provided to minimize irradiation of harmful (or first) electromagnetic waves. More particularly, an electric motor system is provided with one or more counter...
US20130193687 Rotor Device Of Integrated Stater-Generator Motor And Rotor Working System  
A rotor device of an integrated starter-generator motor and a rotor working system are disclosed in the present invention. The rotor device is a monobloc casted and then machined, inseparable...
US20060125345 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...
US20070001530 Motor mechanism  
A motor mechanism includes a stator, a first bearing, a second bearing, a sleeve and a rotor. The stator has an axial hole. The first bearing and the second bearing are respectively disposed in...
US20070188026 Damping structure for a rotor assembly of a motor  
A damping structure for a rotor assembly includes holes defined in a rotor and in a side board respectively and damping elements inserted into the holes of the rotor to be located between the...
US20060033402 Transport system and dynamo-electric machine  
A dynamo-electric machine has a stator with a primary winding and a rotor with a field magnet and a shaft. the field magnet includes a first field magnet having different polarity magnetic poles...
US20080116754 DEVICES, SYSTEMS, AND METHODS FOR PRODUCING AN ELECTRIC MOTOR  
Certain exemplary embodiments comprise an electric motor that comprises a stiff shaft. The electric motor can have an output rating that is greater than approximately 200 horsepower. The electric...
US20050253480 Apparatus and method for reducing shaft charge  
According to an exemplary embodiment, the present invention provides a rotatable element, such as a rotor for an electric motor. The exemplary rotatable element has a core with a generally...
US20060131981 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...
US20130221797 AMORTISSEUR ASSEMBLY AND APPARATUS TO MAINTAIN RADIAL VENTING HOLE ALIGNMENT  
An amortisseur assembly comprises an end winding amortisseur. The end winding amortisseur comprises a body, at least one finger element, and a stop block. The body comprises a first edge. The...

Matches 51 - 100 out of 125 < 1 2 3 >