Class 310/203 - Closed windings

Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter relating to closed windings.
No. of patents: 41
Last issue date: 12/27/2011

«First «Previous1 2 Next»Last»

Number	Title	Issue Date
8084912	Planetary geared motor and dynamo Provided is a DC motor capable of eliminating a DC current reverse rectification performed in a conventional DC motor and enabling rotation of maximum torque at all rotation angle and having a shape and a function for facilitating a combination with a speed change g...	12/27/2011
7956508	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 subcoils (10 21) are connected to each other via ...	06/07/2011
7379742	Multi-carrier communications with adaptive cluster configuration and switching A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating a...	05/27/2008
7309939	Current limiting means for a generator The invention provides means of limiting maximum current conducted through windings of an electric machine having a rotor and a stator. By encouraging an appropriate leakage flux around a winding, a leak impedance can be achieved which may be used, according to the ...	12/18/2007
7268456	Stator of rotary electric machine There is provided a stator of a rotary electric machine in which the proportion of the cross sectional area of a coil in the cross sectional area of the slot is high, and an electric power loss due to leakage flux can be reduced. The stator is a stator of a rotary e...	09/11/2007
7239060	Brush DC motors and AC commutator motor structures with concentrated windings Structures of direct current motors or ac commutator (Universal) motors which use a concentrated winding on the rotor with coils wound around the teeth. The number of commutator segments is higher than the number of rotor teeth. Several coils are wound around the sa...	07/03/2007
7157826	Axial gap electrical machine An axial gap electrical machine employs unique architecture to (1) overcome critical limits in the air gap at high speeds, while maintaining high torque performance at low speeds, while synergistically providing a geometry that withstands meets critical force concen...	01/02/2007
6998749	Rotary electric machine In a vehicular alternator, a stator is arranged to oppose a rotor in a housing. The stator includes a stator core, which forms a plurality of slots extending in an axial direction of the stator core, and a stator winding wound around the stator core. The stator wind...	02/14/2006
6958561	Stator winding structure of a motor or a generator A stator winding structure of a motor or a generator includes plural separate different-shaped rod conductors combined to form a collective winding structure to take the place of a conventional winding structure which has a coil wire wound continuously. The differen...	10/25/2005
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
6906445	Rotary electric machine In a vehicular alternator, a stator is arranged to oppose a rotor in a housing. The stator includes a stator core, which forms a plurality of slots extending in an axial direction of the stator core, and a stator winding wound around the stator core. The stator wind...	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
6791224	Stator winding and manufacturing method therefor A stator winding which copes with high output and miniaturization turns formed by winding a wire sheaf of a plurality of fine wires bundled together, in an approximately rhombic shape, wherein the turns are arranged so as to be sequentially shifted in the direction ...	09/14/2004
6759779	Automotive alternator stator assembly with rectangular continuous wire A stator assembly for an electric machine includes a metal core with windings installed into slots of the core. A pair of conductors of a continuous form is used for each phase of the machine. The windings are interlaced to alternate between radially inner and outer...	07/06/2004
6741004	Creased armature winding insulator for dynamo-electric machine A method includes the steps of forming a substantially U-shaped insulator having outwardly bent portions formed by bending the side portions thereof at bent parts so as to be apart from each other, forming winding assemblies including strands of wire wound in a pred...	05/25/2004
6629356	Method and apparatus for concentric assembly of structural rotor enclosure on an electrical machine rotor 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 windin...	10/07/2003
6560854	Coil-winding method for electric motor, generator and alternator A coil-winding method comprises: winding first coil clockwise around first, counterclockwise around second, and clockwise around third swath along mandrel, hooks grouped into swaths; winding second coil clockwise around between first arid second hooks of ...	05/13/2003
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
6501205	Alternator An alternator includes a rotor for forming north-seeking (N) and south-seeking (S) poles about a rotational circumference, a stator having a stator core disposed facing the rotor and a polyphase stator winding installed in the stator core, and a bracket s...	12/31/2002
6252328	Electrical machine with a rotor provided with amortisseur bars An electrical machine (10), in particular a generator, comprises a rotor (12) with pole zones, in which pole zones amortisseur bars (15) designed as wedges are arranged, which amortisseur bars (15), on the outside of the rotor (12), are pushed into slots ...	06/26/2001
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
6124660	AC generator for vehicles An AC generator for vehicles includes a field rotor, a stator disposed around said field rotor and a frame for supporting the rotor and the stator. The stator has a laminated core having a plurality of slots, aluminum conductors housed in the slots, and a...	09/26/2000
6104113	Coil assembly for sensorless rotor angular position control of single phase permanent magnet motor A coil assembly for sensorless rotor angular position control of a single phase permanent magnet motor. The coil assembly is positioned axially adjacent one end of the motor's rotor core in magnetic coupling relationship with the rotor and substantially i...	08/15/2000
6066910	Commutator-less direct-current motor A direct-current motor has a single coil having a plurality of active branches and a rotor having a permanent magnet. The active branches are arranged in sequence essentially without gaps. The permanent magnet has magnetic segments which overlap all the a...	05/23/2000
6002189	Stator core and wire winding method for the same A stator core has 3N salient poles arranged circularly where N is a natural number of four or more but except a multiple of three. Coils are formed around the salient poles where winding directions of the coils is the same for the salient poles. A first, ...	12/14/1999
5949170	Method and apparatus for reducing voltage stresses in electric machine A method and apparatus for reducing winding failures in reluctance machines wherein winding coils for the switched reluctance motor are formed and positioned such that the turn-to-ground capacitance of the portion of the winding coil coupled to an electro...	09/07/1999
5929548	High inertia inductor-alternator A high inertia inductor-alternator energy storage device provides backup energy in a simple, compact device. The inductor-alternator stores an acceptable level of energy via an improved rotor that provides a high level of rotational inertia. The improved ...	07/27/1999
5929549	Fault tolerant electric machine An electric machine, such as a motor or a generator, comprises a stator having a plurality of stator poles defining a plurality of slots, a rotor positioned within the stator, and at least a two sets of stator windings wound on the stator poles and occupy...	07/27/1999
5847484	Sleeve type of coreless motor with reduced starting current According to the present invention, a coreless motor is provided, which comprises: a stator having a circular slot therein, magnets on a wall of the slot, two brushes attached thereto, and metals, which are arranged concentrically; and a rotor having a sh...	12/08/1998
5731645	Integrated motor/generator/flywheel utilizing a solid steel rotor A flywheel energy conversion device provides highly efficient conversion between kinetic and electrical energy. The flywheel produces increased output by providing armature coils in an air gap formed about the flywheel (both radial and axial embodiments a...	03/24/1998
5654602	Generator winding A three phase four pole synchronous generator winding is shown, having three parallel connected circuits per phase, for a stator with 63 winding slots, each circuit having seven series connected coils, with particular application to very large nuclear or ...	08/05/1997
5196751	Large-diameter a.c. motor with joints in the stator In a large-diameter a.c. motor, the stator is divided by joints (6). The stator coil (5) consists of windings (4) which are arranged in two layers in the grooves of the stator. In order to simplify assembly of the machine, the stator coil (5) is divided i...	03/23/1993
4885497	Winding for a pulse power AC generator rotor A winding for a rotor in a pulse power AC generator has an electrical conductor extending along a closed loop path about an exterior periphery and first and second opposite ends of the rotor core. The conductor includes at least four side conductor portio...	12/05/1989
4774428	Compact three-phase permanent magnet rotary machine having low vibration and high performance A compact three-phase permanent magnet rotary machine having minimal reluctance torque and electromagnetic torque ripple, and maximum energy efficiency and starting torque per unit volume of winding, comprises an armature having 3(2n+1) ferromagnetic pole...	09/27/1988
4761602	Compound short-circuit induction machine and method of its control An induction machine having a stator carrying phase coils divided into at least two independently fed sets of coils, with a rotor or armature carrying one or more loop members, each of which is a short-circuited, continuous isolated loop conductor member ...	08/02/1988
4453100	Flat coil element for an electric motor and method of manufacturing the same A coil element of the invention is formed by a flat ring-shaped original winding. Reference lines which pass the central point form angles ଱ and ଲ. Points at intersections of the periphery of the flat ring-shaped original winding and the refer...	06/05/1984
4401907	Electric motor coil element and method of manufacturing the same An electric motor coil element embodying this invention is manufactured by the steps of closely winding a single wire about a columnar bobbin to provide a cylindrical original winding having a diameter d, setting a 2n number of equal division points on th...	08/30/1983
4327304	Winding for small rotary electric double air gap motor A coreless rotary electric appliance comprising a rotary coil of a cup-shaped coil body open at an end face thereof which is composed of inclined coil wire portions wound with a determined angle along the cylindrical periphery of said coil body and of end...	04/27/1982
4197475	Direct current motor with double layer armature windings A direct current motor having armature windings which are superposed on each other in double layers. The motor includes a fixed field magnet having 2mn poles (m being a positive integer of 1 or more, n being a positive integer of 2 or more) which are magn...	04/08/1980
3950664	A.C. Motor winding Windings for an A.C. motor which comprise one basic rectangular or oval coil for each phase, whether single phase, two-phase, or three-phase, each coil being wound into a selected number of loops to establish a corresponding number of poles; also a method...	04/13/1976

«First «Previous1 2 Next»Last»

PatentStorm

Bizarre Patents

PatentStorm News

Class 310/203 - Closed windings