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7608969 |
Stator for rotary electric machine
A stator for a rotary electric machine, including a plurality of stator cores arranged in a circumferentially spaced relation about a central axis of the stator, and a molded resin filled between...
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7583002 |
Insulation and alignment of segmented stators for electric machines
A stator segment for a segmented stator of an electric machine includes insulative material configured for overlapping with insulative material of an adjacent stator segment to provide continuous...
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7541714 |
Streamlined body wedge blocks and method for enhanced cooling of generator rotor
Body wedge blocks are provided adjacent the end of the rotor body that have a forward facing axial end that is aerodynamically streamlined. Thus, between adjacent body wedge blocks a flow passage...
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7525230 |
Air core motor-generator
A brushless motor-generator includes a rotor having a ferromagnetic tube with radially polarized, alternating polarity permanent magnet poles, and an air core armature that magnetically exerts...
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7498711 |
Cooling of a stator
The invention relates to the cooling of a stator ( 3 ) of an electric machine ( 1 ), the stator ( 3 ) comprising an autonomous cooling circuit, that is to say distinct from another cooling circuit...
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7498710 |
Cooling of stator windings
An arrangement for cooling an electric motor's stator winding coil is described. One area of a conductor insulation is removed to expose the copper conductor. The conductor is wound into a coil...
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7443070 |
Method and apparatus for controlling an electric machine
The invention provides a method and apparatus for controlling a machine in which the magnetic flux emanating from a rotor is selectively diverted to a second path in the stator which bypasses the...
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7432628 |
Generator and method of manufacturing same
A generator and a method of manufacturing the generator, which can suppress a lowering of tension of a bind ring caused by an initial deformation during assembly and changes with the lapse of time...
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7423356 |
Thermally-conductive stator support structure
A stator assembly including a plurality of stator coil assemblies and a stator coil support structure constructed of a non-magnetic, thermally-conductive material. The stator coil support structure...
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7397160 |
Insulation device for linear motor
An insulation device for being assembled in a linear motor is primarily made through molding a sheet insulation material into an insulation module with the shape harmonized with the shape of an...
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7342335 |
Magnetoelectric generator and method for manufacture thereof
A magnetoelectric generator includes: a generating coil that is constituted by: a generating coil main body in which a conducting wire is wound onto respective teeth of a stator core; and an output...
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7342331 |
Multi-plane flexible rotor balancing
A rotor balancing system is provided that includes a rotor core, a plurality of core channels, a support wedge, a wedge channel, and balance masses. The rotor core includes an annular section, a...
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7266884 |
Apparatus for cutting and removing wedges of a stator core of an electrical machine
The wedge removal apparatus includes an elongated frame having telescopic elements at opposite ends with cylinders to engage pads along opposite sides of the frame against diametrically opposed...
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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...
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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...
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7194794 |
Method for producing electrical machines
An electrical machine has a base body provided with conductors fixed in grooves of the base body by a material which limits a groove slot at both sides, and the conductors in the grooves are...
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7154205 |
Re-tightenable stator body wedge system
A generator stator core has a plurality of axially extending radial slots arranged about the periphery thereof with windings in each of the radial slots. At least one adjustable wedge and slide...
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7122931 |
Generator rotor
An improved generator rotor ( 30 ) and a method of repairing an existing generator rotor ( 12 ) are disclosed. Methods consistent with the present invention provide techniques for repairing...
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7119644 |
Mounting structure for superconducting windings
A superconducting coil assembly is of the type mounted to a rotor assembly of an electric rotating machine and, in operation, is maintained at cryogenic temperatures while the portion of the rotor...
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7119467 |
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,...
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7112909 |
Method and system for measuring wedge tightness
A method for measuring wedge tightness in an electromechanical device includes providing a top ripple spring that includes a conductive portion and a non-conductive portion, positioning the top...
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7098560 |
Flux probe for electric generator
A flux probe ( 100 ) for measuring the rotor flux of an electric generator ( 10 ). The probe ( 100 ) is affixed to a probe carrier ( 102 ) and held within a stator coil slot ( 62 ) by affixing the...
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7084543 |
Mounting of the stator winding of the electric motor of an elevator machine
An arrangement for mounting a stator winding in a stator of an elevator machine motor, where the stator may include a stator frame with a plurality of stator teeth and one or more slots between...
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7084542 |
Stator winding of the electric motor of an elevator machine
A stator winding assembly for a stator of an elevator machine motor, in which the stator may include a stator frame with a plurality of stator teeth and one or more slots between given stator...
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7081695 |
Adjustable fit wedges
The present invention provides for a fitted wedge wherein a formed outer frame is loosely fitted into a desired gap. The formed outer frame contains a lateral gap such that the formed outer frame...
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7061154 |
Lightweight wedge design for high speed generators
A wedge-shaped member to restrain coil windings of a generator rotor from moving under centrifugal force. The wedge-shaped, substantially hollow member including a first plate, a second plate...
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7038344 |
Housing comprising at least one functional element of an electrical machine
Functional elements are difficult to mount on a housing based on known methods, on which at least one functional element for an electric motor is situated. A housing is configured such that...
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7028385 |
Method for improved distribution of cooling air in an electric machine
Method for retrofitting an electric machine to reduce temperature rise therein. The method allows for removing at least a portion of an originally assembled coil support on a spider structure of...
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7015617 |
High speed generator with rotor coil support assemblies secured to interlamination disks
A rotor for a high speed generator is constructed of a plurality of laminations and interlamination disks, which are disposed between each of the laminations. A coil support assembly is disposed...
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7015616 |
System and method for providing coil retention in the rotor windings of a high speed generator
A coil retention system for a rotor of a high speed electrical generator, such as an aircraft generator, that uses compliant material to fill variable dimension voids and/or gaps in the coils wound...
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6989621 |
Module winding system for electrical machines and methods of electrical connection
Winding modules are secured about pole regions of a rotor body with assembly being accomplished in radial directions. Plug-in type electrical connectors oriented parallel to the direction of...
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6984912 |
Dynamoelectrical machine with wedged-in winding bars
A dynamoelectrical machine ( 20 ) has winding bars ( 13 ) which are inserted into slots provided for this purpose in the dynamoelectrical machine ( 20 ), with the slots each being closed by cover...
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6984910 |
Generator with composite rotor coil retention components
A coil retention system for a rotor of an electrical generator, such as an aircraft generator, that includes one or more components made of a high strength, lightweight composite material. By...
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6981308 |
Support members inside stator slots of a rotating electric machine and method of mounting these support members
A rotating electric machine ( 1 ) has a rotor, a stator ( 2 ), and stator windings ( 3, 4 ). The windings ( 3, 4 ) include high voltage cable drawn through slots ( 5, 6 ) in the stator ( 2 )....
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6979929 |
System and method for retaining wedges in a rotor
A rotor with wedges and a method of retaining wedges in a rotor are disclosed. The rotor includes a shaft, first and second poles extending radially from the shaft, and first and second coils of...
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6979928 |
Axial retention feature for restraining composite reinforcing rings
A magnetic shield assembly for confining rotor windings in a generator includes a substantially cylindrical tubular shield of two or more part-annular segments adapted to enclose the rotor...
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6967420 |
Electrical machine having a rotor specially adapted to high speeds
An electrical rotating machine having a rotor comprising a shaft made from non-magnetic material, a plurality of pole pieces made from magnetic material and surrounding the shaft, with permanent...
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6952064 |
Motor
It is intended to suppress the vibration and noise during operation of a concentrated winding electric motor and to provide an electric motor with high efficiency, low vibration and low noise. A...
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6949857 |
Stator of a rotary electric machine having stacked core teeth
A stator of a rotary electric machine having secured core slot insulators includes a multi-phase stator winding, having a plurality of slot segments that are adapted to be radially inserted into a...
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6933648 |
Rotor assembly for dynamo electric machines
A rotor assembly for a dynamo electric machine, the rotor assembly comprising a rotor core incorporating radially extending rotor poles, rotor windings encircling respective rotor poles,...
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6930471 |
Hybrid synchronous/induction generator power plant
A power generation plant comprising a power generating unit that includes at least one first generator, such as an induction generator, coupled to at least one synchronous generator having a rotor...
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6930418 |
Centralized power distribution unit having bus bars accommodated in holding grooves of insulating holders
A centralized power distribution unit for a vehicular thin brushless motor includes a plurality of bus bars, an insulating holder that holds the bus bars to form a predetermined gap between the bus...
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6927509 |
Apparatus and method for cooling an electric motor
An improved electric motor cooling construction where the motor stator is contained within the motor housing. The motor covers and motor housing are designed to provide direct increased airflow to...
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6922001 |
Process for assembling an alternator stator with clips that allows radial insertion of square wire with small slot openings
A stator assembly for an alternator in accordance with the present invention includes a generally cylindrically-shaped stator core having a plurality of core slots formed along the inner surface...
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6900572 |
Stator of rotary electric machine
In a stator of a rotary electric machine, a stator winding is wound through slots of a stator core. The stator winding is constructed of conductor segments. Each of the conductor segments includes...
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6885120 |
Structural enclosed rotor configuration for electric machine
A rotor configuration for an electric machine includes a rotor shaft and a multi-pole rotor core secured to the rotor shaft. A plurality of field winding modules are respectively disposed over each...
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6882079 |
Low mass generator wedge and methods of using same
A wedge ( 40 ) and methods of using the wedge ( 40 ) for a power generator ( 30 ) are provided. The wedge ( 40 ) preferably has a wedge body ( 41 ) and at least one substantially hollow cavity ( 45...
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6864617 |
Retaining system for a rotor of a dynamoelectric machine
A retaining system for field winding end turns of a rotor, such as for a dynamoelectric machine. The rotor has an outer peripheral surface, radial end surfaces, axially-extending slots in the...
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6859991 |
Methods for forming stator coils
Insertion devices may be used to insert portions of pre-wound coils into the slots of dynamoelectric machine components. Some machine components may have poles that have pole tips that extend away...
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6851176 |
Method for the manufacture of bundles of metal sheets of annular shape
The method makes it possible to form a stator of an electric motor by means of a multiple-slide press ( 21, 22, 23 ). The starting point is a bundle consisting of rectilinear segments of sheets...
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