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| Number | Title | Issue Date |
| 7164218 | Electric motor and electric type compressor An electric motor includes a housing and a circular stator. The housing has an inner circumferential surface. The housing also has a first predetermined thermal expansion coefficient. The housing further has an elastic part. The stator core is pressed to an inside o... | 01/16/2007 |
| 7159295 | Method of making a miniature electric motor A miniature PMDC motor 10 has a permanent magnet stator comprising two arcuate ceramic magnets 20 fitted to a can-like housing 11 and circumferentially separated by interdisposed rubber magnets 21 wedging or nipping the ceramic magnets | 01/09/2007 |
| 7159296 | Coil-winding machine stator installation jig A stator stack and stator jig assembly provide a consistent amount of slack in stator coil wires without increasing the complexity of coil-winding machines or adding production steps, and prevent crossing of the stator coil wires in the slack areas. A stator stack h... | 01/09/2007 |
| 7161271 | Motor for washing machine A motor for a washing machine includes a stator core having one or more bolt thru holes. A stator assembly having the stator core is directly coupled to a bearing housing using the bolt thru holes. ... | 01/09/2007 |
| 7159297 | Method of manufacturing a rotor of an electric motor It is an object of the present invention to provide a method of manufacturing a rotor for an electric motor, in which displacement of the center of gravity is prevented. According to a feature of the present invention, a rotor for an electric motor comprises an inne... | 01/09/2007 |
| 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 |
| 7157878 | Transient compensation voltage estimation for feedforward sinusoidal brushless motor control A method for controlling a voltage mode controlled electric machine comprising: receiving a torque value representative of a desired torque; obtaining a speed value indicative of a rotational velocity of the electric machine; acquiring a phase advance value indicati... | 01/02/2007 |
| 7155804 | Method of forming an electric motor A stator is provided for an electrical device (e.g., a motor) comprised of one or more stator segments formed by the compaction of one or more powdered metallic materials. Each stator section has at least one tooth that forms a substantially toroidal path for magnet... | 01/02/2007 |
| 7155805 | Method for making stator of rotary electric machine A rotary electric machine has a stator core and a winding. The winding has a plurality or sub-winding sets which are mounted on the stator in the order. Each of the sub-winding sets has a plurality of phase windings. Each of the phase windings is made of a continuou... | 01/02/2007 |
| 7157814 | Stator for reciprocating motor and manufacturing method thereof Disclosed are a stator for a reciprocating motor and a manufacturing method thereof which are able to simplify assembling processes, to reduce assembling time, and thereby to improve productivity by laminating an inner stator to be a straight line shape and bending ... | 01/02/2007 |
| 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 |
| 7154200 | Motor A motor has a stator substantially encapsulated within a body of thermoplastic material; and one or more solid parts used in the motor either within or near the body. The thermoplastic material has a coefficient of linear thermal expansion such that the thermoplasti... | 12/26/2006 |
| 7152300 | Method of manufacturing a micromechanical structure A microactuator includes a stationary element, a movable element, and a first microstructure. The stationary element is fixed on a substrate and has a plurality of stationary element electrodes arranged at a predetermined pitch. The movable element has a plurality o... | 12/26/2006 |
| 7152301 | Method for winding a stator of multi-phase motors A method for winding a stator of a multi-phase motor includes successively winding each of a plurality of teeth on the stator with a continuous winding wire to connect each of the phases in the motor together. The wound wire is disconnected between any two phases wh... | 12/26/2006 |
| 7152306 | Method for installing a stator winding A method for installing a stator winding in a stator core. A winding turn is formed by drawing a cable portion from a cable reel and inserting it into two winding slots. Each winding turn that is jointlessly connected to first winding turn and has the same winding d... | 12/26/2006 |
| 7150090 | Method for matching a collector to replace a brushless exciter in a turbine generator drive train A method to replace a brushless exciter with a static excitation system for a generator including the steps of: measuring a plurality of dimensions of the brushless exciter; determining a rotational mass moment of inertia of a rotation portion of the excitation syst... | 12/19/2006 |
| 7150091 | 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; ... | 12/19/2006 |
| 7151359 | Variable reluctance generator A variable reluctance generator has phase windings and a bias winding. By controlling the excitation produced by the bias winding, the speed of the machine or the DC link, a power converter using only diodes can supply power to a DC bus. A method of operating a vari... | 12/19/2006 |
| 7148598 | Spoke permanent magnet rotors for electrical machines and methods of manufacturing same A rotor assembly for an electric motor includes a spoke permanent magnet rotor and a shaft connected thereto. The spoke permanent magnet rotor has an axis of rotation, permanent magnet material, and ferro-magnetic material. The permanent magnet material extends outw... | 12/12/2006 |
| 7146708 | Method of making a composite electric machine rotor assembly A method of making composite electric machine rotor assembly of a desired magnetic pattern. Magnetic segments and non-magnetic segments are separately formed to green strength, and then arranged adjacent to each other in a desired magnetic pattern. A small amount of... | 12/12/2006 |
| 7147929 | Method of manufacturing a resin-molded stator A highly reliable resin-molded stator not suffering insulation breakdown between the different phases of the stator coils even when the operation mode where the output of a rotary machine using a resin-molded stator in which a stator coil wound around a plurality of... | 12/12/2006 |
| 7146706 | Method of making an electric motor An electric motor has a field assembly, such as a stator, for a dynamoelectric machine has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated with insulating sleeves or insulating slo... | 12/12/2006 |
| 7143506 | Rotary electric machine and method for manufacturing the same A method for manufacturing rotary electric machine that has a stator winding to provide a stator winding that has a plurality of conductors wound one over another. The conductors are wound with left and right ends. Therefore, the stator winding on the stator core ha... | 12/05/2006 |
| 7144468 | Method of constructing a unitary amorphous metal component for an electric machine A unitary amorphous metal magnetic component for an axial flux electric machine such as a motor or generator is formed from a spirally wound annular cylinder of ferromagnetic amorphous metal strips. The cylinder is adhesively bonded and provided with a plurality of ... | 12/05/2006 |
| 7145275 | Bearing with auxiliary magnetism A bearing assembly with auxiliary magnetism comprises a shaft, a fan base and a bearing. The fan base provides a hollow shaft seat with a receiving space to accommodate the shaft. The bearing fits with the shaft for supporting the shaft. A magnetic part surrounds th... | 12/05/2006 |
| 7143503 | Brushless permanent magnet machine with axial modules of rotor magnetization skew and method of producing the same An electrical machine having a machine output rating. The electrical machine including a shaft rotatable about an electrical machine axis, a rotor coupled to the shaft and rotating with the shaft, and a stator including a stator core. The rotor is configurable to in... | 12/05/2006 |
| 7143507 | Recycling method for magnetic field generator A magnetic field generator comprises a pair of plate yokes connected by a column yoke. The pair of plate yokes has a pair of opposed surfaces each provided with a permanent magnet including a plurality of neodymium magnets. In a method in which the neodymium magnets... | 12/05/2006 |
| 7143502 | Method of improving the overall operating efficiency of an electric motor-powered assembly A submersible robotic pool cleaner is provided with an integral sealed rechargeable battery and an inductive charging assembly, a first portion of which is mounted in the pool cleaner housing and during the charging, receives a second separate portion that is connec... | 12/05/2006 |
| 7145280 | Stator for a dynamoelectric machine having a split ferromagnetic core A method and apparatus for production of stator windings for dynamoelectric mechines of different configurations is provided. The windings are preferably formed on a bobbin (10) or similar article, which may then be transferred onto an appropriate carrier suc... | 12/05/2006 |
| 7143501 | Method for assembly of an automotive alternator stator assembly with rectangular continuous wire A method of forming a stator core assembly for an electric machine includes providing a stator core having a plurality of radially extending slots, forming a flat wire pack having a plurality of continuous electrical wires, shaping the flat wire pack into a substant... | 12/05/2006 |
| 7141908 | Rotating electrical machine In a rotating electrical machine a stator winding is formed of flexible cables inserted in an open stator in the stator core. The stator slots extend from a radially outermost yoke part of the stator core radially inwards towards the rotor, the stator slots being se... | 11/28/2006 |
| 7141905 | Permanent magnet synchronous machine A permanent magnet synchronous machine includes a stator, and a rotor which defines with the stator an air gap. The stator includes a plurality of teeth which are disposed in spaced-apart circumferential relationship and separated from one another by a tooth pitch. ... | 11/28/2006 |
| 7140090 | Method of manufacturing an electric motor A technique for securing a conduit box to a housing of an electric motor is disclosed. The technique includes forming a hollow extension from a surface of the conduit box. The conduit box is placed on a motor frame so that the hollow extension is inserted into a hol... | 11/28/2006 |
| 7140098 | Apparatus for manufacturing rotary-electric-machine stator An apparatus for shaping coil ends of a generator's stator having a plurality of sets of U-shaped large and small conductor segments. The apparatus includes four twister cylinders holding connection ends of the large and small conductor segments in four radial layer... | 11/28/2006 |
| 7138736 | Motor An end surface portion 8a of a gear housing 8, which is located on a motor unit 2 side of the gear housing 8, is opposed to the motor unit 2 and laterally extends. A brush holder 10 includes a plate portion 13 ... | 11/21/2006 |
| 7134180 | Method for providing slip energy control in permanent magnet electrical machines An electric machine (40) has a stator (43), a permanent magnet rotor (38) with permanent magnets (39) and a magnetic coupling uncluttered rotor (46) for inducing a slip energy current in secondary coils (47). A dc flux can b... | 11/14/2006 |
| 7135795 | Insert molded end bell for a submersible motor and method of manufacture thereof An end bell for a motor has a base plate, a bearing and a molded insert to couple the bearing to the base plate. The end bell with molded insert is durable, light weight and has good anti-corrosion properties. The bearing is held in relation to the base plate while ... | 11/14/2006 |
| 7135801 | Motor apparatus having rotational position detector A motor apparatus is provided with a yoke housing, a gear housing and a brush holder. A receiving portion of the gear housing receives the worm wheel, etc. therein. The brush holder is interposed between the yoke housing and the gear housing. The worm wheel is provi... | 11/14/2006 |
| 7132769 | Capacitor motor with terminal arrangement A terminal arrangement of a motor has a terminal base formed with a plurality of terminal pins, the terminal base being fixed detachably on a stator iron core of a motor, terminal pins formed on bobbins, connected electrically with windings wound around the bobbins,... | 11/07/2006 |
| 7131182 | Method for assembling supporting disk of motor rotor An assembly method and fixture for assembling a supporting disk of a motor rotor according to the invention is based on an “adjusting, and fixing” concept. A functional axis fixture and an adjusting axis fixture, which can match with each other for holding the s... | 11/07/2006 |
