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Match Document Document Title
US20070284963 Rotor for tandem type alternator and tandem type alternator using such rotor  
A rotor for a tandem type alternator and a tandem type alternator having such a rotor are disclosed. The rotor comprises front and rear Lundell-type rotor cores, carried on a rotary shaft adjacent...
US20070296289 Five-Phase Generator  
The invention relates to a five-phase electric generator (1), in particular for a motor vehicle, said generator comprising five electric branches (12) for five different phases, the latter being...
US20100013351 TOOTHED-ROTOR SHAFT, TOOTHED ROTOR EQUIPPED WITH SUCH A SHAFT AND ROTARY ELECTRICAL MACHINE EQUIPPED WITH SUCH A ROTOR  
The claw-pole-rotor shaft has a front end with a radially larger-sized section, two knurled regions known as crimping regions, intended to be assembled with the claw-pole rotor by local...
US20050006978 Twin coil claw pole rotor with stator phase shifting for electrical machine  
A dynamoelectric machine including a rotor composed of more than two flux carrying segments, each segment having P/2 claw poles, where P is an even number; and includes n independent sets of...
US20080211337 Claw Pole Generator and Closure Body for a Claw pole Generator  
The invention relates to a claw pole generator comprising a claw pole rotor, two magnet wheel halves (21, 23) which are mounted on a drive shaft (15) and are provided with claw-shaped magnet poles...
US20090102314 Rotating electrical machinery  
A rotating electrical machine includes: a stator that includes two stator stages each constituted with a plurality of claw poles extending toward opposite sides along an axial direction at...
US20070273237 Alternator having stator wound with wiring  
An alternator has a rotor and a stator. The stator has a cylindrical armature core wound with an armature wiring. The core has slots disposed along a circumferential direction of the core so as to...
US20060202582 Synchronous motor and electric driving system  
A synchronous motor with low vibrations and an electric driving system using the motor. A field-coil synchronous motor comprises a stator and a rotor rotatably supported at the inner peripheral...
US20060279165 Alternator rotor core  
An improved alternator rotor comprising a nonhomogenous steel rotor core, the nonhomogenous steel rotor core comprising a low carbon inner portion and a high carbon outer portion around the low...
US20070278895 Rotor of a vehicular AC generator  
In a Lundell type rotor core of a rotor in a vehicular AC generator, each interposing magnet is supported at a base part of each claw-shaped magnetic pole part in an axial direction of the rotor....
US20100026131 BRUSHLESS ALTERNATOR WITH CLAW POLE ROTOR  
It is designed for accumulator batteries charging and for electrical energy generating with rectified voltage for movable and unmovable vehicles and/or objects. It possesses two identical...
US20070132337 Rotating electrical machine or alternator and method of manufacturing rotor core used in the same  
A rotor core which has relatively high rigidity, can ensure sufficient magnetic performance, and can be produced at a cheaper cost with a relatively small-scale facility. A claw-equipped core and...
US20090152979 Automotive alternator including annular core having protrusions and recesses alternately formed on its outer surface  
An automotive alternator is disclosed which includes an annular core disposed to surround the radially outer peripheries of all magnetic pole claws of magnetic pole cores. The annular core has, on...
US20110215681 Airflow Passage Arrangement for Claw-Pole Electric Machines  
An electric machine includes a stator and a rotor configured to rotate about an axis of rotation in a direction of angular rotation. The rotor includes a first claw-pole segment and an opposing...
US20070096589 Electric machine rotor fan and pole retention feature  
Disclosed herein is a rotor assembly for an electric machine which includes a shaft having a slip ring end. A first pole segment rotatable with the shaft. A second pole segment rotatable with the...
US20080012448 Brushless alternator for vehicles  
A vehicle brushless alternator includes a magnetic field part having a field coil portion fixed to a rear frame, and pole cores formed with claw-shaped magnetic poles and constituting a rotary...
US20080315716 Rotor for automotive alternator having mechanism for positioning magnetic pole cores  
A rotor for an automotive alternator includes a rotary shaft, first and second magnetic pole cores each having a plurality of magnetic pole claws, a bobbin, a field coil, a plurality of permanent...
US20130187515 Vehicular Alternating Current Generator  
A vehicular alternating current generator includes a Lundell rotor and a stator. The Lundell rotor includes a cylindrical portion around which a field coil is wound; plate-shaped first and second...
US20090218907 MOTOR APPARATUS INCLUDING LUNDELL MOTOR HAVING LUNDELL-TYPE ROTOR  
The Lundell motor apparatus includes a controller for controlling a field current passed to a field coil of a Lundell-type rotor of a motor and an armature current passed to a stator coil of the...
US20120086304 CLAW POLE COMPRISING A CENTERING POINT  
The invention relates to an electrical machine (10), especially a three-phase generator for vehicles. The electrical machine (10) comprises a stator (16) and a rotor (20). The rotor (20) comprises...
US20090322176 Synchronous motor with rotor having suitably-arranged field coil, permanent magnets, and salient-pole structure  
A rotor of a synchronous motor includes a rotating shaft, a plurality of segments, a plurality of permanent magnets, and a field coil. The segments are located radially outward of the rotating...
US20070241632 Tandem AC generator for vehicle and method of producing brush assembly thereof  
A brush holder in a tandem vehicle alternator for a vehicle is composed mainly of a primary brush holder and a secondary brush holder accommodating plural brushes, respectively. The primary and...
US20080061651 Bobbin for a dynamoelectric machine and method  
Disclosed herein is an apparatus that relates to a bobbin of a dynamoelectric machine. The bobbin comprising, a central hub with radial surfaces on axial ends thereof receivable of end caps...
US20070267935 Alternator rotor coil wire routing  
Disclosed herein is a rotor assembly for an electric machine. The rotor assembly includes a shaft, at least one slip ring, a field coil, a first pole segment, and a wire retainer. The at least one...
US20120293039 BRUSHLESS ALTERNATOR  
A brushless alternator of the present invention includes: a yoke whose inner circumferential surface is radially opposite via an air gap to a rotor revolvably supported by brackets; a stat or...
US20140175939 ROTOR FOR AUTOMOTIVE ALTERNATOR  
A rotor includes a rotating shaft and a pair of first and second pole cores fixed on the rotating shaft. Each of the first and second pole cores includes a plurality of magnetic pole claws each...
US20090121575 GENERATOR, IN PARTICULAR FOR MOTOR VEHICLES  
The invention relates to a generator, especially for motor vehicles, which comprises a generator stator (36) having winding slots and subcoils (10 21) lying in said winding slots (35). The...
US20070024153 Rotor for an electric machine with improved cooling, magnetic noise, and reduced inertia using profiled rotor pole fingers  
A rotor assembly for an electric machine, which includes a shaft; a core positioned on the shaft; a field winding surrounding the core; a plurality of pole fingers configured to rotate with the...
US20090009025 ALTERING-CURRANT DYNAMOLECTRIC MACHINE  
An alternating-current dynamoelectric machine according to the present invention includes: a stator including: a stator core in which slots that extend in an axial direction are formed on an inner...
US20090079294 Vehicle A.C. generator  
A vehicle A.C. generator has a rotor. The rotor has a pair of pole cores and magnet holders. Each pole core has a plurality of claw-like magnet poles. Each magnet holder contains a permanent...
US20100320861 DYNAMOELECTRIC MACHINE  
An interfitting groove is disposed in a bottom portion of a trough portion so as to have a groove direction that is axial and so as to extend axially outward from axially inside, and a rotation...
US20140300234 ROTARY ELECTRIC MACHINE ROTOR POLE CONFIGURATION  
A rotor for a rotary electric machine, the rotor including first and second pole pieces each having a respective magnetic hub arranged for rotation about an axis along which they are spaced....
US20080290755 MOTOR  
A motor may include an urging member which is mounted on a fixed body for urging the bearing, and a pair of engaging grooves formed on the fixed body. The urging member may includes a pair of hook...
US20080238242 DYNAMOELECTRIC MACHINE  
The dynamoelectric machine includes: a Lundell rotor that has: a pole core in which tapered claw-shaped magnetic pole portions are arranged in rows circumferentially so as to extend axially...
US20090206696 Electrical output generating and driven devices using disk and non-disk shaped rotors, and methods of making and using the same  
Various devices for generating electrical or mechanical output, comprising a coil, a rotor assembly rotatable about an axis, the rotor comprising alternating magnet portion and flux conducting...
US20060113861 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...
US20080018190 PERMANENT MAGNET TYPE ELECTRIC ROTARY MACHINE AND COMPRESSOR USING THE SAME  
A permanent magnet type electric rotary machine includes a stator including a stator core having teeth and slots, and a rotor provided with permanent magnets as magnet poles in a rotor core. A...
US20070040458 Welding set of metal member including permanent magnet and welding method thereof, as well as electric rotating machine  
A welding set and a welding method that suppresses the unnecessary magnetization of a permanent magnet member by a welding current when welding one metal member including a permanent magnet member...
US20100289371 INTERPOLE ASSEMBLY FOR ROTATING ELECTRICAL MACHINE  
A rotor (1) for a rotary electrical machine, which includes two pole wheels (2) having a series of axial claw poles (20) of a trapezoidal overall shape which extend axially from the extreme radial...
US20070046133 Rotor for automotive alternator having barrier to prevent entrance of foreign matters  
According to the invention, a rotor for an automotive alternator includes a slip ring assembly, a rotary shaft, and a barrier. The slip ring assembly includes an insulating member that has a...
US20070046139 Lundell type rotor core structure and rotary electric machine employing the same  
A Lundell type rotor core structure and an electric rotary machine employing the same are disclosed. The rotor core structure has first and second claw pole portions alternately placed in a...
US20100127594 INDUCTOR-TYPE SYNCHRONOUS MACHINE  
An inductor-type synchronous machine having an axial gap structure, which has a shaft portion at the center thereof, the machine includes: a field-side stator which has a yoke made of a magnetic...
US20100109466 Rotor for electric rotary machine  
A rotor for an electric rotary machine and a method of manufacturing the same are disclosed wherein none of permanent magnets is fixed to a magnetic supporting segment of a magnet support ring in...
US20130221798 ALTERNATOR RATIOS  
A vehicle alternator has a center rotational axis and includes a substantially round stator having a plurality of coils, each coil being wound a number of times N around the stator. The vehicle...
US20100207476 DYNAMOELECTRIC MACHINE  
A dynamoelectric machine includes first and second magnet seat portions disposed to project from portions of first and second yoke portions that face respective inner circumferential surfaces near...
US20110241471 ROTOR OF ELECTRIC ROTATING MACHINE  
A rotor of alternator has core layer units serially located along axial direction. Each unit has a field coil generating magnetic flux and two rotor cores receiving the flux on respective sides of...
US20100066194 ELECTRIC MACHINE  
An electric machine, in particular an electrically excited claw pole generator for a motor vehicle, is provided, having a stator winding, the phase terminals of which may be connected in the...
US20110133595 ALTERNATOR AND METHOD OF MANUFACTURING A ROTOR CORE THEREOF  
An alternator includes a stator assembly and a rotor assembly. The rotor assembly includes a rotor core having a first core portion and a second core portion. The rotor core is processed by...
US20100295410 ELECTRICAL DEVICES USING ELECTROMAGNETIC ROTORS  
An electrical machine comprises a rotor assembly comprising a first set and a second set of rotor extensions, and a stator assembly comprising a first set and a second set of stator extensions....
US20100257723 METHOD OF MANUFACTURING A ROTOR FOR ROTATING ELECTRICAL MACHINE, NOTABLY AN ALTERNATOR  
A method of manufacturing a rotor for rotating electrical machines, notably an alternator, the rotor including two magnet wheels defining between them at least one interpole space arranged to...

Matches 1 - 50 out of 57 1 2 >