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| Number | Title | Issue Date |
| 7876012 | Dynamo electric machine with an alloy member A dynamoelectric machine comprising a stator having a plurality of slots and teeth, armature windings wound around the teeth, and a rotor disposed inside the stator, wherein an alloy member is disposed in the inner periphery of the stator and the magnetic compensato... | 01/25/2011 |
| 7709988 | Methods and apparatus for using an electrical machine to transport fluids through a pipeline An electrical machine to facilitate transporting fluids through a pipeline is provided. The electrical machine includes a rotor assembly that further includes an array of magnets configured to generate a distributed magnetic field. The rotor assembly has corrosion-r... | 05/04/2010 |
| 7365465 | Securing assembly of bandages for synchronous motors with outer permanent magnets A rotor structure for an electric motor includes a cylindrical rotor core assembly and a plurality of permanent magnets disposed on an outer circumference of the rotor core assembly. Wrapped around the rotor core assembly is a bandage to secure the permanent magnets... | 04/29/2008 |
| 7365464 | Composite rotor and output shaft for galvanometer motor and method of manufacture thereof A rotor is disclosed for a galvanometer system. A rotor includes a permanent magnet core, a sleeve and at least one shaft unit. The sleeve encloses and attaches to at least a portion of the permanent magnet core. The sleeve is formed of a material having a density o... | 04/29/2008 |
| 7262526 | Rotor for permanent magnet motor of outer rotor type A rotor for a permanent magnet motor of an outer rotor type having a plurality of permanent magnets and disposed around a stator includes a frame, an annular iron core combined integrally with the frame, and a plurality of insertion holes formed in the core so that ... | 08/28/2007 |
| 7116027 | Magnet for a dynamo-electric machine A magnet for a dynamo-electric machine has a plurality of magnetic poles disposed substantially in a circular shape and opposite a plurality of teeth disposed substantially in a circular shape, the magnetic poles and teeth separated by a gap in an axial direction of... | 10/03/2006 |
| 7112906 | Motor rotor and manufacturing method thereof A motor rotor. The motor rotor adapted to be used in a fan includes a hub, a metal plate and a magnet. The metal plate has a first end and a second end. The metal plate is disposed in the hub. The magnet is disposed in the metal plate. A method for manufacturing a m... | 09/26/2006 |
| 7109627 | Rotor for an electrical machine A rotor for an electrical machine includes a rotor carrier of metallic material with a back wall extending radially to the axis of rotation of the electrical machine and a tubular section extending in the axial direction, in which a laminated core is installed. The ... | 09/19/2006 |
| 6940196 | High-speed rotor A high-speed rotor, in particular a permanent-magnet rotor (1) for dynamoelectric machines of high power density, and also its production are proposed. The permanent-magnet rotor (1) comprises a spindle (2) and armouring (4) coaxial with ... | 09/06/2005 |
| 6891295 | Flywheel magneto generator A flywheel magneto generator which comprises a rotor having a magnet attached to an outer circumferential side of a flywheel and a stator constructed by winding a generating coil around a core having a magnetic pole portion opposed to a magnetic pole of the rotor, w... | 05/10/2005 |
| 6836954 | Rotor for an electronically commutated motor and improved method for the mass production thereof Rotor for an electric motor that comprises a core (1), segments of a cylinder (5, 6, 7) made of magnetizable materials, a substantially cylindrical retaining wrapper (10) whose end portions are joined to at least a pair of plane elements (8, ... | 01/04/2005 |
| 6737781 | Rotor yoke having a ring-like inductor forming member for an electric machine rotor A rotor for an electric rotary machine having signal generating inductor magnetic poles provided on a periphery thereof comprising a cup-like rotor yoke having a peripheral wall and a bottom wall and an inductor forming member mounted on the peripheral wall of the c... | 05/18/2004 |
| 6674204 | Magnet-positioning device for rotor A magnet-positioning device for a rotor in accordance with the present invention mainly comprises a rotor hub, a metal casing, and an annular magnet. The rotor hub includes an annular wall and an engaging portion formed thereon. The engaging portion is ad... | 01/06/2004 |
| 5912521 | Permanent magnet rotor with shorting turns An inductive element in the form of a shorting turn is added to the rotor of a permanent magnet synchronous motor. Changes in inductive coupling between the rotor and a stationary coil as the rotor rotates permits inductive measurements to be used to dedu... | 06/15/1999 |
| 5884389 | Method of manufacturing a claw magneto-electric rotor A method of manufacturing a claw-type magneto-electric rotor. The claw type rotor comprising magnetic material parts forming the poles of the rotor and amagnetic material parts separating the poles of opposite polarity confined in a hollow cylindrical cas... | 03/23/1999 |
| 5831365 | Detachable magnet carrier for permanent magnet motor A magnet carrier assembly for holding and carrying a high-energy-product permanent magnet is arranged for releasable attachment to a rotor of an axial disc or drum type rotor in an electric machine. The permanent magnet placed in a container which then re... | 11/03/1998 |
| 5691589 | Detachable magnet carrier for permanent magnet motor A magnet carrier assembly for holding and carrying a high-energy-product permanent magnet is arranged for releasable attachment to a rotor of an axial disc or drum type rotor in an electric machine. The permanent magnet placed in a container which then re... | 11/25/1997 |
| 5204572 | Radial magnetic coupling A permanent magnet coupling including a rotatable inner member 32, and outer member 12 rotatable about the same axis 14 as the inner member 32, a plurality of magnets 36 each having a nominally trapezoidal cross section, and a plurality of interpole membe... | 04/20/1993 |
| 5063318 | Preloaded permanent magnet rotor assembly The problem of preloading a rotor assembly (14) in a dynamoelectric machine (10) of the permanent magnet type is solved by providing a hub (20) having a plurality of outwardly opening, annularly spaced slots (22, 24). The slots are outwardly converging an... | 11/05/1991 |
| 5021698 | Axial field electrical generator Potentially very high power ratings can be achieved from rotary electrical generators in which permanent magnet rotor stages using modern high intensity magnetic materials, for example cobalt samarium or neodymium boron iron. The machine described compris... | 06/04/1991 |
| 4864175 | Rotor for an electric motor In connection with a rotor for an electric motor, in particular a disk-type rotor comprising flat magnets being arranged in the form of angular segments and in spaced relationship and supported by supporting disks mounted on both sides of a central hub, i... | 09/05/1989 |
| 4656379 | Hybrid excited generator with flux control of consequent-pole rotor An electrical machine utilizes a consequent pole rotor with a polyphase stator assembly and a control coil to produce a widely variable voltage output. Either constant-speed--variable-voltage performance, or variable-speed--constant-voltage performance ma... | 04/07/1987 |
| 4629920 | Alternating current synchronous servomotor In an alternating current synchronous servomotor, a disk-shaped rotor (20) is arranged between two stator halves having each a coil with leads extending in the radial direction. The rotor (20) comprises an even number of flat permanent magnets (57) formin... | 12/16/1986 |
| 4339874 | Method of making a wedge-shaped permanent magnet rotor assembly A rotor assembly having self-locking wedge-shaped permanent magnets.... | 07/20/1982 |
| 4332079 | Method of making rotor rectangularly shaped tongues A rotor assembly having a hub with rectangularly-shaped tongues and wedge-shaped permanent magnets.... | 06/01/1982 |
| 4296544 | Method of making rotor assembly with magnet cushions A rotor having wedge-shaped permanent magnets and cushions between the magnets and their support members.... | 10/27/1981 |
