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| Number | Title | Issue Date |
| 7948145 | Switched reluctance motor A plurality of concavities and convexities is provided on tips of all rotor teeth 24 of the SR motor 5. Depths of the concave portions α are deep on an edge side where a stator tooth 23 and rotor tooth 24 first approach and are shallow a... | 05/24/2011 |
| 7816836 | Reduced stress generator pole tip fillet A reduced stress rotor tip fillet that may be utilized in generators and motors as well as other types of rotating equipment is disclosed herein. The rotor tip fillet may reduce stress via an inventive fillet configuration positioned between intersecting rotor faces... | 10/19/2010 |
| 7579745 | Motor A rotor is operable to rotate in a rotating direction, and is provided with five teeth that define five slots therebetween at regular intervals in the rotating direction. A pair of arc-shaped magnets surrounds the rotor, and faces each other through the rotor. A val... | 08/25/2009 |
| 7511401 | Rotor of motor A rotor of a motor includes: a stator; a rotor core of a certain shape; a winding coil wound on the rotor core; and a rotor rotated by an electromagnetic interaction with the stator, in which both sides of an end wall of each slot of the I rotor core where the windi... | 03/31/2009 |
| 7414348 | Armature core of rotating electric machine A rotating electric machine armature core is configured by combining such a number of magnetic tooth sections that corresponds to the number of magnetic poles, each of the magnetic tooth sections including a plurality of first sheet members each of which includes a ... | 08/19/2008 |
| 7394178 | Generator rotor structure A generator rotor structure comprises a cylinder body, at least a magnetic member, and a shaft. A penetrating bore is adapted at the center of the cylinder body. A plurality of containing spaces is adapted between the sidewall of the penetrating bore and the outer s... | 07/01/2008 |
| 7362031 | Electric motor An electric motor has an armature rotatably accommodated inside a motor housing and a pair of magnets fixed to an inner surface of the motor housing so as to face the armature. The armature has an armature core 17 fixed to a rotating shaft 16, and ten ... | 04/22/2008 |
| 7345396 | Metallic laminations for magnetic circuits Metallic laminations for magnetic circuits. Some of the illustrative embodiments may be a magnetic circuit comprising a low reluctance magnetic flux path comprising a plurality of stacked metallic laminations (each lamination having an edge), and an air gap in opera... | 03/18/2008 |
| 7323799 | Axial gap type rotating electric machine There is provided an axial gap type rotating electric machine which is small-sized and achieves a high motor efficiency as a drive source having a high torque using a strong magnet by reducing energy loss by an induced current. An axial gap type rotating electric ma... | 01/29/2008 |
| 7312550 | Architecture for electric machine In one aspect, an alternator is described which includes a current control apparatus including a stator winding and a control winding, wherein current control in the control winding regulates the stator winding. In another aspect, a gas turbine engine includes a mul... | 12/25/2007 |
| 7305857 | Structure of driving unit in drum type washing machine Structure of driving unit in a drum type washing machine including a tub mounted inside of a cabinet, a drum mounted inside of the tub, a shaft connected to the drum mounted inside of the tub for transmission of a driving force from a motor to the drum, a front bear... | 12/11/2007 |
| 7301310 | Excitation controlled synchronous permanent magnet machine The present invention provides an apparatus and methods for providing constant voltage from a permanent magnet generator at varying prime mover speeds or under varying loads. A constant voltage permanent magnet generator includes a housing, a magnetized rotor, a pri... | 11/27/2007 |
| 7288868 | Motor generator A motor generator is provided with a stator having a winding around each of a plurality of stator teeth, and a rotor having a plurality of permanent magnets by the number larger than that of the stator teeth, arranged in the circumferential direction at equal interv... | 10/30/2007 |
| 7285891 | Armature core of rotating electric machine A rotating electric machine armature core (1) is configured by combining such a number of magnetic tooth sections (2) that corresponds to the number of magnetic poles, each of the magnetic tooth sections (2) including a plurality of first sheet ... | 10/23/2007 |
| 7276830 | Flux impulse motor A motor (1) has a stator (2) and a rotor (10) mounted for rotation in the stator. A commutating salient pole (11) of the stator as a winding (7), and a field-producing salient pole (12) has a winding (8). The rotor ha... | 10/02/2007 |
| 7271518 | Balancing structure for motor A motor includes a fixed portion, a rotor, and at least one balancing plate fixed on the fixed portion. The fixed portion includes a stator having a plurality of pole plates that extend to form a plurality of pole faces, with a gap being defined between a pair of th... | 09/18/2007 |
| 7265464 | Balancing structure for motor A motor includes a fixed portion, a rotor, a balancing plate, and at least one sensor mounted on the fixed portion. The fixed portion includes a stator having at least one winding and a plurality of pole faces. The rotor includes an annular magnet facing the pole fa... | 09/04/2007 |
| 7262540 | Stator of outer rotor type motor for drum type washing machine The present invention provides an outer rotor type motor for a drum type washing machine to reduce material and weight for fabrication, simplify fabrication process, provide stable assembly of a stator to a fixing side, such as a tub or a bearing housing, prevent un... | 08/28/2007 |
| 7259489 | Dynamoelectric claw-shaped rotor with magnet retainer Reinforcing body retainers are formed on an inner peripheral surface near a tip and near a root of first and second claw-shaped magnetic poles. Reinforcing bodies have a trapezoidal base portion and a pair of wing portions formed on two sides of the base portion, an... | 08/21/2007 |
| 7259488 | Rotary electric machine A rotary electric machine comprises a rotating shaft rotatably supported by bearings, a rotor attached integrally with the shaft and a stator facing the rotor. The stator includes a plurality of coils arranged substantially in a circular form in a rotating direction... | 08/21/2007 |
| 7253547 | Stator of motor, and method for manufacturing the same The present invention discloses a stator of a motor including a circular stator core formed by stacking a plurality of sheets, a plurality of bobbins fixed to the inner circumferential surface of the stator core at predetermined intervals and rotatably connected to ... | 08/07/2007 |
| 7227290 | Rotor core and direct-current motor A core includes a ring body and a plurality of teeth. The teeth extend radially outward form the outer circumference of the ring body. The core is formed by assembling a first core member and a second core member. Each core member has part of the teeth the number of... | 06/05/2007 |
| 7225284 | Increasing the quantity of I/O decode ranges using SMI traps A method of increasing the quantity of input/output (I/O) decode ranges using system management interrupts (SMI) traps is disclosed. In one aspect, the present disclosure teaches a method of increasing the quantity of I/O decode ranges using SMI traps in a chipset i... | 05/29/2007 |
| 7221073 | Axial gap electronic motor An axial gap electronic motor includes a stator and a rotor disposed opposingly with a predetermined gap. In order to provide an easy assembling operation of the stator, the stator includes a plurality of pole members annularly connectable. The annular stator core i... | 05/22/2007 |
| 7221071 | Synchronous electrical machine The electric machine (M) comprises an armature (A) and an inductor (B), the inductor (B) having for each pair of poles (N, S) of the armature (A), n teeth (20) identical to one another and n slots (21) and being provided with a winding (W) housed in th... | 05/22/2007 |
| 7221069 | Balancing structure for motor rotor A motor includes a fixed portion having a stator with at least two pole faces. Each pole face includes a strong magnetic section and a weak magnetic section for respectively creating stronger and weaker alternating magnetic fields. A rotor includes a shaft rotatably... | 05/22/2007 |
| 7213579 | Fuel pump and method of manufacturing an armature for the fuel pump An axial length of the fuel pump is reduced, and the fuel pump is miniaturized, without reducing pumping performance. A space G is formed between coils 19 and the shaft 7 at the upper side of the core 11, and the lower portion of the comm... | 05/08/2007 |
| 7215059 | Reluctance motor with at least two salient poles each provided with an exciter winding, and method for manufacturing the stator of such reluctance motor A reluctance motor in which at least one snap ring engages the ends of the exciter coils remote from the stator yoke with radially outward acting spring force. ... | 05/08/2007 |
| 7211922 | Rotor for rotating electric machine The present invention provides a dynamoelectric rotor enabling electromagnetic noise to be reduced by linking a facing tip end portion and root end portion of adjacent claw-shaped magnetic poles by a linking member and placing a field winding in contact with an inne... | 05/01/2007 |
| 7211920 | Field assemblies having pole pieces with axial lengths less than an axial length of a back iron portion and methods of making same An electric motor, power tool using the electric motor, and method of making the electric motor includes making a stator that includes pole portions that have axial lengths less than an axial length of a back iron portion. Alternatively, or in addition, the pole por... | 05/01/2007 |
| 7205696 | Field assemblies having pole pieces with ends that decrease in width, and methods of making same An electric motor, power tool using the electric motor, and method of making the electric motor includes making a stator that includes pole portions that have axially opposed ends that gradually decrease in width. The pole portions may also have dovetail features th... | 04/17/2007 |
| 7202582 | Electric machine with a circuit board for wiring lines of a winding system An electric machine includes a stator having a plurality of slots and a winding system having windings placed in the slots. The windings of the winding system are interconnected by at least one flexible circuit board which is constructed for attachment to a radial s... | 04/10/2007 |
| 7193343 | Electric motor A stator having a stator core about which a coil is wound is secured to an aluminum frame. A magnet-embedded type rotor is rotatably accommodated inward of the stator. A circuit substrate is attached to the surface of the aluminum frame opposite to the surface to wh... | 03/20/2007 |
| 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 |
| 7173357 | Axial gap type dynamo-electric machine There is provided an axial gap type rotating electric machine which is small-sized and achieves a high motor efficiency as a drive source having a high torque using, for example, a strong magnet by reducing an energy loss by an induced current. An axial gap t... | 02/06/2007 |
| 7170202 | Linear motor In a linear motor according to this invention, the field permanent magnets 2 are arranged at an equal pitch around a field iron core 1 so that the poles are alternately changed. Also, an armature 3a on the needle side is arranged opposite... | 01/30/2007 |
| 7157828 | Fuel pump for high torque in compact structure In a fuel pump, four permanent magnets are installed in a housing. An armature is installed inside the permanent magnets rotatably. Six magnetic pole coil portions of the armature are installed in a central core. Each magnetic pole coil portion has a coil core, a bo... | 01/02/2007 |
| 7145277 | Rotary electric machine for a permanent magnet synchronous motor A rotary electric machine comprises a rotating shaft 7 rotatably supported by bearings 2, 3, a rotor 23 attached integrally with the rotating shaft 7, and a stator 5 arranged facing the rotor 23. The stator 5 includes... | 12/05/2006 |
| 7131178 | Method of forming a drum type washing machine having a driving unit Structure of driving unit in a drum type washing machine including a tub mounted inside of a cabinet, a drum mounted inside of the tub, a shaft connected to the drum mounted inside of the tub for transmission of a driving force from a motor to the drum, a front bear... | 11/07/2006 |
| 7126313 | Architecture for electric machine The invention includes an electric machine having a rotor, stator and at least one winding in the stator adapted to conduct a current, and a secondary winding, electrically isolated from the first winding and inductively coupled to the first winding, which may be us... | 10/24/2006 |
