Matches 101 - 150 out of 251 < 1 2 3 4 5 6 >
Match Document Document Title
5864193 Electric rotating machine having improved insulation for an armature coil  
An electric rotating machine is constructed by an armature core including slots, upper coil trunks and lower coil trunks housed within the slots of the armature core, lower coil arms electrically...
5861698 Generator rotor with ring key that reduces tooth top stress  
A generator rotor that reduces friction force transmitted to rotor teeth by a retaining ring is disclosed. The friction force is caused by end windings pushing longitudinally outward against the...
5854525 Jacketed rotary machine  
A rotary machine having a stator with a stator bore designed for accommodating a jacket. The stator comprises coils retained in notches and notch closing shims, wherein elastic members are provided...
5851340 Process for fastening conductive bars  
A process is disclosed for fastening windings in a permanent and reliable manner without reducing the cooling cross-sections. Doses of an electroconductive elastomer are introduced for that purpose...
5845389 Method of fabricating a wound core  
A wound core assembly and a method of manufacturing wherein the coil windings are cast and interconnected within the insulated chambers and end conductor molds. The insulated chambers act as the...
5821649 Electrostatic shielding system for reduction of bearing currents in electric motors  
An electrostatic shielding system is provided for an AC motor to eliminate generation of destructive motor bearing currents. Conductive end turn shields are layered over the stator coil end turns...
5821652 Dynamoelectric machines with shaft voltage prevention method and structure  
Damaging shaft voltages in an induction motor are prevented by an electrostatic shield between the stator winding structure and the rotor structure. The electrostatic shield is held at the same...
5770910 Switched reluctance motor stator assembly  
An improved switched reluctance motor (1) has a stator assembly (3) and a rotor assembly (5) mounted for rotation relative to the stator assembly. A stator (9) has a plurality of stator teeth (11)...
5763978 Insulating member for a core of a motor  
An insulating member (10), which is disposed in each of slots (20) in a stator core (16) of a motor in order to insulate electrically the core (16) and windings (22) set in the slots (20),...
5708315 Stretchable coil wrapper for a dynamoelectric machine  
Stator bars and stator coils (winding elements) for a large dynamoelectric machine which are to be permanently placed in the slots of the magnetic core of the machine are wrapped so as to be...
5698917 Electromagnetic bearing with a stationary armature canning arrangement  
An electromagnetic bearing includes a canning arrangement (30, FIG. 2) for separating stator coils 33 from a suspension gap 21 containing gas at high pressure. The canning arrangement comprises a...
5698923 Exciter stator insulating bobbin  
A stator insulating bobbin is disclosed including a plurality of insulating elements. These insulating elements are configured and dimensioned to substantially enclose and insulate an inner surface...
5682074 Electric vehicle motor  
An electric motor for an electrically powered vehicle provides the power necessary for rotating a plurality of vehicle wheels. The motor is constructed of light weight and corrosion resistant...
5661353 Electrostatic shield for AC motor  
An apparatus reducing capacitive coupling between the stator and the rotor of an electromagnetic machine. The apparatus includes an electrically connective shield positionable between the stator...
5644181 Stator lamination design having a tapered opening  
A stator lamination for an electric motor includes a plurality of notches extending about an inner periphery thereof shaped to minimize damage to insulation of the conductor during insertion of the...
5574325 Impregnatable configuration of a carrier body and winding elements  
A configuration, which may be part of a heavy-duty dynamoelectric machine, in particular a stator, being impregnated with a filler such as a cured epoxy resin, includes a ferromagnetic and...
5477095 Rotor of a turbogenerator having direct gas cooling of the excitation winding  
A rotor of a turbogenerator having direct gas cooling of an excitation winding conductor. An insulating strip is provided between a slot base and the excitation winding conductor. A resiliently...
5428258 Armature for an electric motor having a core face insulation disc  
An armature for an electric motor having a laminated core assembly attached to the motor's shaft. The laminated core having a plurality of coil slots in which the armature coils are wound. A slot...
5421077 Method for the substitution of copper windings in generator rotor fields originally having aluminum windings  
A method of replacing rotor windings of a dynamoelectric machine having aluminum windings with copper windings having the same number of coil turns and of about the same weight as the original...
5382861 Asynchronous motor and a procedure for the manufacturing of the stator and/or rotor of an asynchronous motor  
An asynchronous motor is disclosed with stator and rotor windings placed in respective grooves, at least one of the windings being a cast winding. The grooves on the stator and those on the rotor...
5346568 Expanding electrical insulating laminate, method for its manufacture and application  
A thermally expanding laminate contains highly elastic reinforcing fibers, such as glass fibers, in the elastically compressed state, and a thermally softening, thermosetting plastic as a binder....
5341561 Process for producing the electric insulation of electric machine windings  
In order to produce the electric insulation of the winding of an electric machine, grooves having a cross-section that tapers at least in an area near to the groove opening are arranged in the...
5329197 Generator rotor winding with two coils per slot  
Two coil windings per slot are disposed in a dynamoelectric machine rotor. The coil winding conductors are stacked on the sides of the rotor slots with the central coil sides separated by a...
5306976 Motor and stationary assembly therefor having end caps and overlapping film slot insulation  
A motor having a rotatable assembly which rotates about an axis of rotation and having a stationary assembly in magnetic coupling relation with the rotatable assembly. The stationary assembly...
5300844 High-voltage insulation for stator windings of electric machines  
The conductor bars of stator windings of rotating electric machines are usually multiply wound around with two-layer mica strips as major insulation and then impregnated with synthetic resin. It is...
5175396 Low-electric stress insulating wall for high voltage coils having Roebeled strands  
A wall structure for insulating the exterior surface of a high voltage coil having Roebeled windings is provided that comprises an inner insulating layer formed from a hardenable epoxy material for...
5126196 Protective device for a hermetic motor-driven compressor  
A protective device for a hermetic motor-driven compressor comprises a protective device main body and an insulating layer made of a heat-resisting insulating material having a heat-resisting...
5099159 High-voltage insulating system for electric machines  
In an insulating system for high-voltage machines, a three-layer insulating tape is proposed as turn-to-turn insulation which comprises a center mica layer (1) which is covered on both sides by...
5093543 Motor phase insulation article and method of making the same  
A motor phase insulation device having folding legs that can be easily manufactured with minimum material wasted. The legs are formed from slits in the device material.
5093598 Semiconductor insulation layer for stator coil connections  
Methods and apparatus that improve flashover voltage levels in turbine-generators, and reduce the spacing between the end portion connections of one phase group and the end portion connections of...
5068563 Tab insulators for insulating armature core slots  
The invention provides an insulator for insertion in an armature core slot of a motor and for preventing an electrical connection between the core and wire wound in the armature core slots. The...
5066881 Semi-conducting layer for insulated electrical conductors  
A semi-conducting pyrolyzed glass fiber layer equalizes the electrical potential on the exterior surface of an insulated conductor when the layer covers the surface. The layer prohibits the...
5065064 Rotor slot insulation in rotors with subslots  
Rotor slot insulation for dynamoelectric machines having rotors with subslots including two slot armors, each extending in an offset manner to the transition between the rotor slot and subslot and...
5034643 Magnetic circuit for the stator of an electric motor and stator equipped therewith  
The invention concerns the stator of an electric motor comprising a packet a stacked laminations provided with laterally open slots for receiving the active portions of the windings for the motor...
5030870 Conductor winding device for a large electric machine  
A filler-impregnatable device for a large electric machine, such as a stator or a rotor, includes a carrier body having slots formed therein defining slot walls. Conductor windings have conductor...
4994700 Dynamoelectric machine oil-cooled stator winding  
The problem of stator cooling in a dynamoelectric machine is resolved using manufacturing spaces (32) within stator slots (20) for flow of oil coolant. In order to secure stator winding conductors...
4922165 Core and slot liner  
A core for a dynamoelectric machine has a pair of generally opposite end faces, and wall means is provided in the core for defining at least one winding receiving slot intersecting the opposite end...
4908537 Pole ventilation of radially ventilated rotors  
Methods and apparatus for reducing noise in a radially ventilated rotor of a dynamoelectric machine are provided by slots formed in the pole regions of the rotor. Members formed of a selected...
4900956 Closed channel axial vent for radially ventilated generator rotor  
An axial vent channel (30) for installation in a generator rotor winding slot, the channel (30) being in the form of an elongate, closed tube of polygonal cross section enclosing a longitudinal...
4900964 Pole face slot filler  
A pole face slot filler (26,28) for insertion into a pole face slot formed in a pole region (18) of a generator rotor, the filler (26,28) having a U-shaped cross section and being composed of a...
4876473 Armature  
In an armature (10) of DC motor, plural first slots (12A) and at least one second slot (12B) of larger width than the first slots (12A) are formed in a core-sheet lamination assembly (11), and both...
4862024 Heat dissipation in an electric motor  
A fusible, thermally conductive material (50) within which coils (40) of electric motor (10) are packed, cools the coils by melting and rejecting the heat of fusion thereof to the motor's stator...
4859891 Subslot liner for rotor of dynamoelectric machine  
A U-shaped subslot liner is disposed in the bottom of a slot in the rotor of a dynamoelectric machine. A stack of conductors and insulating layers is supported by arms of the subslot liner durig...
4852246 Method of insulating a field winding coil  
An insert sheet formed of insulating material includes an outer border portion and a pair of door-like panels foldably mounted on the border portion, the insert sheet being disposed with its border...
4808872 Electric machine with a sheet metal packet carrying a winding and a method of making same  
An electric machine that includes a stator having a sheet metal packet which has an end plate at each end, and insulating plates abutting against the end plates. The packet has radially inwardly...
4806806 Coil for arrangement in slots in a stator or rotor of an electrical machine  
A coil for arrangement in slots in a stator or rotor of an electrical machine, in particular a high voltage coil, comprising a bundle (17) of a plurality of conductors (18) located adjacent to each...
4788761 Method of assembling a core and method of assembling a slot liner  
A method of assembling a core for a dynamoelectric machine with the core including a pair of opposite end faces, a wall in the core defining a winding receiving slot intersecting the end faces, and...
4724600 Method of making a high voltage dynamoelectric machine with selectively increased coil turn-to-turn insulation strength  
Multiple turn coils are arranged with turn insulation around individual turns, group insulation around each of a plurality of groups of turns, and ground insulation around the entire coil half....
4710663 Dynamoelectric machine coil slot wedge mounting arrangement  
In a dynamoelectric machine rotor whose armature has circumferentially spaced teeth defining therebetween coil slots in which coils are disposed and which are closed by coil wedges provided with...
4709181 Subslot cover for dynamoelectric machine  
In a dynamoelectric machine, electrical windings are held within the dynamoelectric machine rotor in axially extending slots which further include coextensive subslots for ventilation purposes....
Matches 101 - 150 out of 251 < 1 2 3 4 5 6 >