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| Number | Title | Issue Date |
| 8159093 | Motor apparatus, manufacturing method, exposure apparatus, and device fabrication method A motor apparatus includes a movable portion including a coil and a tooth-like salient pole and a platen opposed to the movable portion. The movable portion and the platen move relative to each other by using a magnetic field generated by supplying a current to the ... | 04/17/2012 |
| 8120227 | Projecting pole rotor comprising coil end support plates and rotary electric machine comprising one such rotor A rotor of a rotary electric machine comprising a rotor shaft, a stack of laminations, which is coaxial to the rotor shaft and which comprises at least two radially-projecting poles, a field coil which is wound around each pole, such that the ends of the coil projec... | 02/21/2012 |
| 8040015 | Rotor for an electric motor The invention relates to a rotor for an electric motor, comprising a rotor shaft, a rotor core stack that is attached to the rotor shaft, a ring member which surrounds the rotor core stack, and a gap located between the rotor core stack and the ring member. Adhesive... | 10/18/2011 |
| 8022581 | Stator arrangement, generator and wind turbine A stator arrangement of a generator for a wind turbine includes a plurality of stator segments substantially forming the stator of the generator. Each stator segment has at least one stator winding and/or a laminate stack of sheets wherein each stator segment is mou... | 09/20/2011 |
| 7898123 | Permanent magnet type rotary machine The permanent magnet type rotary machine is capable of reducing cogging torque caused by variation of amounts of magnetic flux in magnetic circuits. The permanent magnet type rotary machine comprises: a stator constituted by stator units, which are coaxially stacked... | 03/01/2011 |
| 7851951 | Secondary part of a linear electrical machine, and method for its production The invention relates to a secondary part (2, 3) of a linear electrical machine (5), wherein the secondary part (2, 3) has permanent magnets (11) and a mount (13). The secondary part (2, 3) has spacer elements (9), wh... | 12/14/2010 |
| 7816821 | Method for judging a status of varnish impregnation A varnish impregnation state determination method for determining a varnish impregnation state of a core assembly that is formed by disposing a coil inside a slot of a motor core and impregnating the coil and an interior of the slot with a varnish, including applyin... | 10/19/2010 |
| 7768162 | Dynamoelectric coil portion insulating construction A stator coil 24 is installed in a stator core 11, and an insulating resin is impregnated into slot portions 22 and hardened. The stator coil 24 is constituted by enameled wires in which a polyamideimide resin layer has been applied radia... | 08/03/2010 |
| 7417341 | Powder coating for generator stator bar end fitting and method for applying the powder coating A method of sealing a generator stator bar and a stator bar end fitting receiving the end including the steps of: brazing the fitting to the end of the stator bar with a braze material; applying a powder coating material to the end of the stator bar in the fitting; ... | 08/26/2008 |
| 7375452 | Commutator for an electrical machine A commutator for an electrical machine, in particular for an electric motor for actuating drives in motor vehicles, has a commutator body that supports commutator laminations. To reduce the electromagnetic radiation, emitted into the environment as interfering radia... | 05/20/2008 |
| 7368842 | Armature windings and dynamo-electric machine using the same An armature winding includes a plurality of strand groups each having strands transposed and bound in at least two rows and multiple tiers, and a main insulator for covering the strand group. The strands belonging to a strand group on one side of a central strand gr... | 05/06/2008 |
| 7362024 | Rotor of BLDC motor Disclosed is a rotor of a BLDC motor including a frame rotatably disposed on an inner circumference of a stator, rotor teeth connected to the outer circumference of the frame in the radial direction at regular intervals, and magnets fixed between the rotor teeth, an... | 04/22/2008 |
| 7358639 | High frequency electric motor or generator A device such as an electric motor, an electric generator, and a regenerative electric motor includes at least one independent energizable electromagnetic assembly. Each independent electromagnetic assembly has an associated one-piece magnetic core. Each independent... | 04/15/2008 |
| 7352073 | Ocean wave energy converter having an improved generator and ballast control The ocean wave energy converter uniquely includes a generator with a rotating inner rotor surrounded by a counter-rotating outer rotor for generating electricity. A reciprocating drive rod drives the inner rotor on the downstroke of the drive rod and the outer rotor... | 04/01/2008 |
| 7348698 | Actuator for operating a transmission control valve of an automatic transmission apparatus A rotor having magnets composed of rare-earth magnets is rotatably disposed inside an exterior casing, a penetrating aperture is disposed through a first end of the exterior casing relative to a direction of a motor central axis, and a filter is disposed so as to co... | 03/25/2008 |
| 7342340 | Alternator with identical conductor segments In an automotive alternator according to the present invention, conductor segments of an inner winding portion and conductor segments of an outer winding portion have substantially the same shape. ... | 03/11/2008 |
| 7342334 | Insulated stator with wire routing element A stator for an electric machine includes stator teeth with powder coat insulation covering a portion of each tooth. An end cap with a routing element is positioned on one side of the stator. Wire extends around and contacts the powder coat insulation on the stator ... | 03/11/2008 |
| 7339301 | Stator structure of motor A stator structure comprising at least one first magnetic conductive plate and at least one second magnetic conductive plate, each magnetic conductive plate having a plurality of radial arms and pole tooth provided on ends of the radial arms, wherein the pole teeth ... | 03/04/2008 |
| 7336013 | High mechanical strength electrical connection system and method In accordance with one embodiment, the present technique provides a bushing that is configured to electrically and mechanically couple a conductor bar of a rotor assembly to an end ring of the rotor assembly. The exemplary bushing has an interior surface that is con... | 02/26/2008 |
| 7312551 | Coil for a dynamo electric machine A coil (20) for a dynamo electric machine, particularly for the stator (33) of a hydro-generator, includes a plurality of coil rods (22, 24), running in the axial direction in a sheet metal package, whose rod ends (23, 23′; 25, 25′), ... | 12/25/2007 |
| 7294788 | Coil for electric rotating machine, and mica tape and mica sheet used for the coil insulation A coil for an electric rotating machine is configured with a conductor which is formed by bundling a plurality of square strands and stacking the square strands like a coil with Roebel transposition, mica cape which is wound a plurality of layers around an outer sur... | 11/13/2007 |
| 7294941 | Winding coil assembly of reciprocating motor and manufacturing method thereof A winding coil assembly (6) of a reciprocating motor comprising: an outer stator; an inner stator (2) arranged at an inner circumference surface of the outer stator (2) with a certain air gap; a magnet linearly and movably arranged between the o... | 11/13/2007 |
| 7288870 | Stator core A stator core 2 comprises laminations (9) of low loss stator iron forming a body of magnetic nature and lamination components (11) of high thermal conductivity material regularly arranged within that body. The high thermal conductivity component... | 10/30/2007 |
| 7284312 | Method for manufacturing a dynamoelectric stator A method for varnish application to a dynamoelectric stator is disclosed. The method includes a varnish treatment process and application by preheating the stator; adjusting a viscosity of the varnish; dripping the varnish onto a coil end of the stator from radially... | 10/23/2007 |
| 7268293 | Surface coating of lapped insulation tape An electrically insulated object 13 with a heat conduit at the interface between the layers of insulating tape 16. The tape 16 has been, surface coated with a high thermal conductivity (HTC) material, so that the interface between the layers of ... | 09/11/2007 |
| 7262527 | Stator assembly made from a molded web of core segments and motor using same A plurality of stator segments 20 are linked together by a phase change material 22 enabling simplified winding and higher slot fill. Once wound this continuous structure can be formed into a toroidal core 17 for a stator assembly 40 used... | 08/28/2007 |
| 7259491 | Rotating asynchronous converter A rotating asynchronous converter and a generator device having a first stator connected to a first AC network with a first frequency f1, and a second stator connected to a second AC network with a second frequency f2. The converter has a rotor... | 08/21/2007 |
| 7250700 | Arrangement for protecting an electric machine The object of the invention is an arrangement for an alternating-current machine that can be connected to an inverter and includes windings located in grooves and insulated from the plate core of the machine. According to the invention, an electrically conductive sh... | 07/31/2007 |
| 7242126 | Encapsulated armature assembly and method of encapsulating an armature assembly An armature assembly that may be encapsulated and a corresponding method to encapsulate a motor assembly are disclosed. The armature assembly includes a core having slots in which one or more windings are disposed. An outer covering, such as a thermally conductive t... | 07/10/2007 |
| 7235910 | Selective etching process for cutting amorphous metal shapes and components made thereof A selective etching process cuts shapes from amorphous metal strip feedstock. The etching process comprises depositing a chemically resistant material to one side of the strip in a pattern that defines the requisite shape, mating the metal strip with a carrier strip... | 06/26/2007 |
| 7224096 | Rotatable assemblies having chemically bonded lamination stacks A rotor assembly or other rotating device having a stack of laminations or laminates that are chemically bonded together. Chemical bond of the laminates may have a strength that approaches the strength of the material of metal laminates. Chemical bonds may be effect... | 05/29/2007 |
| 7221068 | Insulated motor core and method for producing same A motor core coated with a multi-layer insulating film. The insulating film preferably includes in order: an electrodeposited coating film applied upon an outer surface of the motor core; a first spray coated insulating film applied upon an outer surface of the elec... | 05/22/2007 |
| 7218020 | Linear motor, stage apparatus, exposure apparatus, and device manufacturing method Outflow of heat generated by a linear motor to the outside is suppressed. A linear motor according to the present invention is a linear motor used in a vacuum atmosphere, including a stator, a movable element movable relative to the stator, and a metal film formed o... | 05/15/2007 |
| 7208856 | Electric rotating machine Claw-shaped magnetic poles are alternately disposed along the rotation plane of a rotor of an electric rotating machine, and a permanent magnet is disposed between the claw-shaped magnetic poles. Surface of the permanent magnet is coated with a coating layer. The co... | 04/24/2007 |
| 7202586 | Electrical contact member There is provided an electrical contact member where wear can be reduced. The electrical contact member is characterized by one or both of conductive metal particles and conductive metal fibers, at least outer circumferential surfaces of which have been modified wit... | 04/10/2007 |
| 7202625 | Multi-motor switched reluctance traction system A switched reluctance traction system is provided for work machines. The switched reluctance traction system may include a plurality of switched reluctance motors. Each switched reluctance motor may include a stator with a plurality of stator poles and a rotor with ... | 04/10/2007 |
| 7199500 | Claw-pole electric generator and bicycle electric generator hub A claw-pole electric generator has a circumferentially arranged permanent magnet, a ring-shaped coil, a yoke and a cover member. The yoke surrounds an external periphery of the coil. The yoke has a stator yoke portion and a core yoke portion. The stator yoke portion... | 04/03/2007 |
| 7199499 | Homopolar machine with brush improvement The wear life of flexible copper fiber brushes when used at a positive pole in a direct current motor or generator is improved by the provision of an effective amount of zinc as a sacrificial anode material. Flame-sprayed zinc is applied as a coating to the exterior... | 04/03/2007 |
| 7188403 | Manufacturing method of armature comprising core constituted by assembling split core members The armature of a motor comprises a core constituted by assembling a plurality of split core members. Each split core member has at least two teeth. The method for manufacturing the armature comprises the steps of: winding a conductive wire on each tooth of each spl... | 03/13/2007 |
| 7183674 | Hermetically sealed elements of an actuator An actuator for positioning of an optical element, such as a mirror, in an optic system that operates under vacuum conditions is provided and includes a first actuator body including a first actuator element that is hermetically sealed in the first actuator body and... | 02/27/2007 |
