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| Number | Title | Issue Date |
| 7687962 | Stator In this stator, first and second U-phase loop windings and first and second W-phase loop windings are short-pitch wave windings, and the width in the circumferential direction of the slot between the U and V-phases in which the loop windings are disposed and the slo... | 03/30/2010 |
| 7274126 | Motor armature having distributed windings for reducing arcing An armature for a brush commutated electric motor having a distributed coil winding arrangement for reducing brush arcing and electromagnetic interference (EMI). The winding pattern involves winding a first coil into a first pair of slots of the armature. A second c... | 09/25/2007 |
| 7242124 | Sequentially joined-segment coil for rotary electrical machine A polyphase sequentially joined-segment coil of a rotary electric machine and a production method thereof are provided. The coil is made up of a plurality of conductor segments joined in series. Each of the conductor segments a head projecting from a stator core, a ... | 07/10/2007 |
| 7155811 | Method for manufacturing an armature of an electric motor An armature for a brush commutated electric motor having a distributed coil winding arrangement for reducing brush arcing and electromagnetic interference (EMI). The winding pattern involves segmenting each coil into first and second subcoil portions with differing ... | 01/02/2007 |
| 7132775 | Stator of dynamoelectric machine and method for manufacturing stator winding The present invention provides a dynamoelectric stator and a method for the manufacture thereof enabling electrical insulation properties to be improved by forming slot-housed portions with a racetrack-shaped cross section to suppress damage to an electrically-insul... | 11/07/2006 |
| 7091644 | Sequentially joined-segment armature and ac machine using same A sequentially joined segment armature coil is provided which may be employed in an ac machine such as an ac motor or motor generator. The armature coil is equipped with three phase coils each of which is made up of a first and a second phase windings identical in n... | 08/15/2006 |
| 7084547 | Motor, fuel pump, commutator, and method for manufacturing a commutator A commutator includes six segments disposed in the direction of rotation, and is attached to one axial end of an armature. By the commutator rotating together with the armature, each of the segments successively contacts a brush. Each of the segments is electrically... | 08/01/2006 |
| 7051420 | Method for manufacturing an armature of an electric motor An armature for a brush commutated electric motor having a distributed coil winding arrangement for reducing brush arcing and electromagnetic interference (EMI). The winding pattern involves segmenting each coil into first and second subcoil portions with differing ... | 05/30/2006 |
| 7030533 | Rotary electric machine A rotary electric machine having an armature winding that includes three first phase-windings that form a Δ-connection winding having output ends and three second phase-windings that are respectively connected in series to the output ends to form a star-connection ... | 04/18/2006 |
| 7000307 | Method for reducing arcing for motor armature with distributed windings An armature for a brush commutated electric motor having a distributed coil winding arrangement for reducing brush arcing and electro-magnetic interference (EMI). The winding pattern involves segmenting each coil into first and second subcoil portions with differing... | 02/21/2006 |
| 6971153 | Method of manufacturing winding of rotary electric machine A method of manufacturing a winding of a rotary electric machine includes steps of pressing a portion of a conductor segment in a predetermined direction to reduce its dimension in the direction, inserting the conductor segment into a slot of a stator core, bending ... | 12/06/2005 |
| 6930429 | Motor armature having distributed windings for reducing arcing An armature for a brush commutated electric motor having a distributed coil winding arrangement for reducing brush arcing and electromagnetic interference (EMI). The winding pattern involves segmenting each coil into first and second subcoil portions with differing ... | 08/16/2005 |
| 6926588 | Band coil The invention relates to a method of manufacturing a band coil by means of a material-removing process performed on the coils so as to obtain a band coil which has a profile in the direction of the coil axis. Such a process may be a discharge process, an etching pro... | 08/09/2005 |
| 6911759 | Stator coil assembly for superconducting rotating machines A stator for use in a rotating machine includes a first conductor; and a second conductor wound, in-hand, over the first conductor and along a longitudinal axis of the stator. The second conductor is electrically isolated from the first conductor along the length of... | 06/28/2005 |
| 6910258 | Method of assembling windings on a rotor core A method is disclosed for fitting a rotor enclosure over at least one assembly of field windings mounted on a rotor core, said method comprising the steps: applying a force to elastically reduce a circumference of the at least one assembly of field windings mounted ... | 06/28/2005 |
| 6906479 | Gas turbine engine starter generator with multiple windings on each exciter stator pole A rotating electrical machine, such as an aircraft starter-generator, includes an exciter that has its stator windings divided into a number of sections. A plurality of switches are electrically coupled to the exciter stator winding sections and are configured and c... | 06/14/2005 |
| 6856063 | Electromotive devices using notched ribbon windings A multiple phase winding for an electromotive device comprised of individual phase windings. Each phase winding includes multiple layers of conductors and defines working length portions and interior and exterior end-turn portions, wherein at least one set of end-tu... | 02/15/2005 |
| 6841914 | Motor with brush and commutator, and electric apparatus using the same motor An arc length in contact with a commutator of two brushes in a rotational direction of a motor is defined as not more than 5% of an outer rim length or circumference of the commutator, i.e., not more than πA/2O, where A is an outside diameter of the commutator. A n... | 01/11/2005 |
| 6774525 | Dynamo-electric machine The present invention provides a dynamo-electric machine that prevents the lead portions of the coil portions disposed at places, at which mechanical balance is provided, from intersecting each other, that enhances the workability in manufacturing the wiring by wiri... | 08/10/2004 |
| 6710501 | Stator for a dynamo-electric machine and method for the manufacture thereof In a stator for a dynamo-electric machine, a winding includes a conductor having a rectangular cross-sectional shape in a direction perpendicular to an axial direction, an overall shape of the conductor being a crank shape when flattened out, and the conductor inclu... | 03/23/2004 |
| 6700282 | Rotary electric machine and method for connecting stator conductors A rotary electric machine having improved coil connection reliability, simplified coil end processing steps and improved workability based on an improved components mounting method is to be provided. Flat type conductors are inserted in a stacked state in... | 03/02/2004 |
| 6611073 | Magnetically levitated motor A rotor includes four magnetic poles provided in a rotational direction at intervals of 90 degrees. A stator includes a winding group for rotation and a winding group for levitation. Each of the winding groups has concentrated windings spaced at intervals... | 08/26/2003 |
| 6548933 | Stator of rotating electric machine A linear shape straight angle line is transformed to form U-shape configuration in advance and by sandwiching a stator tooth portion to adjacent slots linear shape two sides are inserted and using a thin plate rod shape chip between both ends of U-shape s... | 04/15/2003 |
| 6545377 | Coil with cooling means The invention relates to a coil comprising current-conducting turns (2) and cooling means (3) for cooling the coil. To improve the cooling efficiency, the coil comprises a plurality of heat conducting foil turns (4). These foil turns can be thermally conn... | 04/08/2003 |
| 6515393 | Automotive alternator Six single phase winding portions are installed in slots disposed at a ratio of two per phase per pole. Each single-phase winding portion has two wave windings formed by winding a conductor wire for a predetermined number of winds into a wave-shaped patte... | 02/04/2003 |
| 6459187 | Alternator A stator core is provided with a core abutting portion extending axially such that the stator core becomes an annular shape by abutting end surfaces of a parallelepiped laminated body, and a polyphase stator winding is provided with a winding connection p... | 10/01/2002 |
| 6388355 | Motor for an electric power steering assembly A motor for an electric power steering assembly includes a yoke, a multipolar magnetic field portion composed of at least four poles secured to the inner wall of the yoke, a shaft disposed within the yoke so as to be able to rotate freely, an armature sec... | 05/14/2002 |
| 6388354 | Motor for an electric power steering assembly A motor for an electric power steering assembly includes a yoke, a multi-polar magnetic field portion composed of at least four poles secured to the inner wall of the yoke, a shaft disposed within the yoke so as to be able to rotate freely, an armature se... | 05/14/2002 |
| 6388357 | Armature winding for dynamo-electric machine In a three phase armature winding for a dynamo-electric machine, each phase of the winding comprises a first phase belt for (3n+2) slots and a second phase belt for (3n+1) slots. Three parallel connected circuits each constituting series connected coils p... | 05/14/2002 |
| 6326715 | Stator for an automotive alternator A stator for an automotive alternator includes a stator core having a number of slots, and a polyphase stator winding installed in the slots, the stator winding being constructed by joining a number of segments of electric conductor, and the stator windin... | 12/04/2001 |
| 6236138 | Electro mechanical machine and armature structure therefor The coils on the disc-type armature of an electro mechanical machine are all wound in the same direction (rotational sense). The coils on each face of the armature are formed into at least two series connected groups of coils which are disposed on the sur... | 05/22/2001 |
| 6236137 | Commutator motor A commutator motor comprises a yoke, a magnetic field portion secured to the inner wall of the yoke, a shaft disposed within the yoke so as to be able to rotate freely, an armature secured to the shaft having windings constructed by winding wire by a lap-... | 05/22/2001 |
| 6229241 | Structure and manufacturing method for motor and stator A motor having a lap winding structure and a manufacturing method therefor, wherein inserts of two different coils are installed side by side in one slot of a stator in a circumferential direction of the stator. All the coils are inserted in slots in succ... | 05/08/2001 |
| 6201332 | AC generator stator for vehicle In an alternator stator for vehicle, each of the phase-windings includes first and second coil-end groups at opposite axial ends the stator core. Each of the slots includes radially aligned six layers. Each of the phase-windings comprises a plurality of s... | 03/13/2001 |
| 6181046 | Dynamo-electric machine with commutator assembly A commutator assembly for an electric motor includes a commutator having commutator segments arranged circumferentially, brushes contacting the commutator segments, and an equalizer connecting commutator segments so they have the same electric potential, ... | 01/30/2001 |
| 6057623 | Dynamo-electric machine having a hook shaped commutator and equalizer attached thereto A dynamo-electric machine comprises an armature having a winding composed of a wire or wires wound by a lap winding method through slots extending in the axial direction formed on the outer circumferential surface of a core secured to a shaft, a commutato... | 05/02/2000 |
| 5994813 | Rotary electric machine A stator winding has a plurality of conductor members forming coil ends, and each of the conductor members of the coil ends is hardened and heat treated to have hardness which changes along the length of conductor members. Therefore, the stiffness of the ... | 11/30/1999 |
| 5986380 | Mechanical constraints for tapered end turns of a generator rotor An end turn arrangement for turns in a rotor where individual windings are stacked in tapered radial slots in the rotor, with successive turns having a smaller width in a radial inward direction, the end turns of the individual turns of each stack being v... | 11/16/1999 |
| 5982068 | Stator arrangement of alternator for vehicle In a stator of an alternator for a vehicle including a stator core and a multi-phase stator winding, the stator winding is composed of a plurality of conductor segments having a pair of conductor members connected with one another to form a first coil-end... | 11/09/1999 |
| 5925959 | Electric generator with novel structure The present invention provides a electric generator with novel structure, comprising two parts: a stator and a rotor. The stator has rectangle-section winding slots. The stator teeth have sectorial section. Slits are formed extending axially in the yoke a... | 07/20/1999 |
