| Entries |
| Document | Title | Date |
|---|
| 20080252155 | SPRAY COOLED V-WEDGE FOR AEROSPACE GENERATOR - A high speed generator cooling system directs a cooling oil spray through a chamber inside a coil support wedge assembly, which may be disposed adjacent to the generator coils. Heat from the generator coils may be conducted through the walls of the coil support wedge assembly and into the chamber where it is removed by the cooling oil spray passing through the chamber. The cooling oil passes through a generator rotor shaft and into a cooling passage in least one of the rotor laminations. | 10-16-2008 |
| 20080296986 | BUSHING AND GENERATOR - In a bushing which has a terminal with a bend for connecting a conduit tube and a lead tube, the effect to cool the inner corner of the bend is enhanced. The bushing includes a conductive conduit tube, a conductive lead tube, and a terminal. The terminal has a bend and connects the conduit tube and the lead tube. Electric current and cooling gas flows in these tubes. A cooling means is provided for forced cooling of the inner corner of the bend of the terminal. One example of the cooling means is a guide vane which makes cooling gas flowing in the bushing come closer to the inner corner of the bend. A larger current can flow even when the bushing has the same size as a conventional one. | 12-04-2008 |
| 20090015082 | Electric Motor and Method of Producing Electric Motor - In a fan motor | 01-15-2009 |
| 20090026856 | Brushless AC generator for use in automotive vehicle - A brushless AC generator is mounted on a vehicle such as a truck, a farming vehicle or a construction vehicle. The generator is composed of a housing, stator fixedly contained in the housing, a rotor, for supplying a magnetic field to the stator, rotatably supported in the stator, and other associated components including a voltage regulator and a rectifier. The housing is composed of a front housing and a rear housing. An outside fan is connected to a rotor shaft and disposed at a front side. Cooling air is introduced into the generator by the outside fan through windows formed in the rear housing. A fringe surface of the window facing a shoulder portion of the rotor is sloped, so that the cooling air is smoothly introduced along the sloped surface thereby to improve cooling efficiency. | 01-29-2009 |
| 20090026857 | Electric Motor - The electric motor has a rotor ( | 01-29-2009 |
| 20090033160 | ELECTRIC MOTOR FOR HYBRID OR ELECTRIC VEHICLE - A motor includes a stator, a rotor supported by a rotor hub for rotation relative to the stator, and a housing fixedly supporting the stator. The housing rotatably supports the rotor and includes a first end enclosing the stator, the rotor, and the rotor hub and a second end exposing the stator, the rotor, and the rotor hub to define an opening between the rotor and within the rotor hub. | 02-05-2009 |
| 20090066175 | DYNAMOELECTRIC MACHINE - A magnet seat is disposed on a second yoke portion and projects into respective spaces between circumferentially-adjacent pairs of second claw-shaped magnetic pole portions, and permanent magnets are disposed only near the second yoke portion so as to be held by the magnet seat so as to face an inner circumferential surface near a tip end of each of a plurality of first claw-shaped magnetic pole portions. Each of the permanent magnets is magnetically oriented in a reverse direction to an orientation of a magnetic field that a field coil produces. | 03-12-2009 |
| 20090121564 | ENHANCED MOTOR COOLING SYSTEM - A core assembly for an electric motor includes a heat exchanger comprising a plurality of fins. The fins define a plurality of cooling air passages that include offset fins that disrupt cooling air flow to reduce the formation of boundary layers and improve heat transfer capacity. | 05-14-2009 |
| 20090206688 | COOLING STRUCTURE FOR STATOR - A cooling structure for a stator includes: a stator core; a stator coil that is wound on the stator core and includes a coil end formed on an end surface of the stator core in an axial direction of the stator core; a ring member provided on an outer periphery of the stator core; a case that houses the ring member and the stator core on which the stator coil is wound. In the cooling structure, a cooling medium is supplied between an outer peripheral surface of the ring member and an inner peripheral surface of the case, and the ring member includes at least one opening through which the cooling medium is supplied to the coil end from radially outside of the coil end. | 08-20-2009 |
| 20100001597 | Electric Motor - The electric motor has a rotor ( | 01-07-2010 |
| 20100072836 | Cooling Device for Feeding Motor of Pick-Up Head - The invention provides a cooling device for the feeding motor of a pick-up head on a traverse covered a protection plate. The protection plate disposes a long slot along the major axis of the traverse. One end of the long slot disposes a spindle rotating a disc above the protection plate. A feeding motor rotates a screw bar to move the pick-up head back and forward along the long slot. A diffuser is connected to at least one side of the upper surface of the feeding motor. An install recess on the protection plate faces the rotating disc and accommodates the upper surface and the diffuser to increase the cooling effect. | 03-25-2010 |
| 20100090549 | THERMAL MANAGEMENT IN A FAULT TOLERANT PERMANENT MAGNET MACHINE - A PM machine is provided. The PM machine includes a stator including a stator core, wherein the stator core defines multiple step-shaped stator slots. The stator includes multiple fractional-slot concentrated windings wound within the step-shaped stator slots. The stator also includes at least one cooling tube disposed around the windings. The stator further includes a first insulation layer disposed around the cooling tube. The stator also includes a second insulation layer disposed around the first insulation layer. The stator further includes at least one slot wedge configured to close an opening of a respective one of the step-shaped stator slots, wherein the slot wedge is further configured to adjust a leakage inductance in the PM machine. The PM machine also includes a rotor having a rotor core and disposed outside and concentric with the stator, wherein the rotor core includes a laminated back iron structure disposed around multiple magnets. | 04-15-2010 |
| 20100109454 | LIQUID DEFLECTING BAFFLE FOR AN ELECTRIC MOTOR - A fluid deflecting baffle is provided for use on an electric motor to be used in an environment where liquid may otherwise pass through a vent opening in an endshield of the motor. The baffle is secureable to the endshield and extends in a partial covering relationship with the vent opening. The baffle includes a vent passage therethrough and has at least one liquid flow obstructing louver that extends across the vent opening to deflect liquid away from the vent passage while allowing venting air to flow through the vent passage. The louver includes a generally flat liquid deflection surface that is disposed at an oblique angle relative to the axis of the motor and at least partially faces a venting direction of incoming air and fluid. | 05-06-2010 |
| 20100133931 | WIND TURBINE WITH DIRECT-CONNECTED VARIABLE SPEED BLOWER - A wind turbine is provided having at least one generator, and at least one blower motor connected to the generator. The blower motor is configured to rotate the fan for circulating air to the generator. The blower motor is connected to the generator so that a variable power output of the generator results in a variable power output of the blower motor and a variable speed of the fan. | 06-03-2010 |
| 20100225183 | STATOR COOLING STRUCTURE FOR SUPERCONDUCTING ROTATING MACHINE - Disclosed herein is a structure for cooling the stator of a superconducting rotating machine. The structure includes a stator coil. Slots are axially disposed at the stator coil to support the stator coil, and a space is defined between the slots to allow the stator coil to be partially exposed. A stator yoke is disposed on the slots such that a space is defined between the exposed portion of the stator coil, the slots and the stator yoke. A cooling tube is disposed in the space defined between the exposed portion of the stator coil, the slots and the stator yoke, thus simultaneously cooling both the stator coil and the stator yoke. | 09-09-2010 |
| 20100253163 | COMPACT HIGH POWER ALTERNATOR - A compact, high power, power conversion apparatus including a rotor and a stator. The rotor includes a cylindrical casing, and a predetermined number of permanent magnets disposed on the casing, and is adapted for rotation about the axis of the casing. The stator includes a core and a plurality of sets of conductive windings, each set including a predetermined number of individual conductive windings and associated with an electrical phase. A respective collecting conductor is associated with each set of conductive windings, with each individual conductive winding of the set being electrically connected to the associated collecting conductor. The respective collecting conductors are disposed in a coolant flow path a coolant flow path directing coolant into contact with the stator windings, electrically isolated from each other and spaced apart from each other and from the windings. Collecting conductors in the form of continuous rings and in the form of a plurality of arcs are disclosed. | 10-07-2010 |
| 20110001371 | SYSTEM FOR THE CIRCULATION OF FILTERED AIR INSIDE THE WIND TURBINE - System for the circulation of filtered air inside the wind turbine ( | 01-06-2011 |
| 20110025145 | MAGNET APPARATUS OF AN ELECTRICAL MACHINE WITH A COOLANT LINE - The mounting of a coolant line system in a magnet device of an electric machine is to be simplified. Therefore, a magnet device is provided, with a ferromagnetic base member ( | 02-03-2011 |
| 20110043059 | ALTERNATING CURRENT GENERATOR COMPRISING A STATOR AND A STATOR WINDING INSERTED IN STATOR GROOVES MADE OF WINDING ELEMENTS AND METHOD FOR PRODUCING AN INVENTIVE STATOR - An alternating-current generator, in particular a three-phase generator, for a motor vehicle, having a rotor including north and south poles, particularly having claw-pole fingers extending in the axial direction and alternating as north and south poles at the rotor's periphery, a stator having a magnetic core, especially laminated core, having slots and a stator winding disposed in the magnetic core's slots, the stator winding having winding overhangs that are coolable by an approximately radial air flow produced by at least one fan mounted at the rotor, the stator being situated opposite the rotor, and the stator and the rotor having defined positions relative to each other, the multiphase stator winding being made up of winding elements, at least one winding element having more than two sections inserted in slots, and at least one winding element having more than one reversal section which brings about a change in the radial position. | 02-24-2011 |
| 20110101802 | COOLING DEVICE FOR AN ELECTRIC MACHINE ARRANGEMENT - A cooling device ( | 05-05-2011 |
| 20110109175 | ARRANGEMENT WITH AN ELECTRIC MOTOR AND A PUMP - An arrangement including an electric motor driving a pump is provided. The arrangement is delivering a process fluid along a flow path, which flow path extends along a gap between a stator and a motor rotor of the electric motor. To avoid rotor dynamic instability caused by hydrodynamics in the gap flow, guiding elements are provided in the flow path. | 05-12-2011 |
| 20110175468 | ELECTRIC ROTATING MACHINE - An electric rotating machine including a rotor rotating relative to a stator, the rotor rotating a first fan placed at a first end of the stator, and a second fan placed at a second end of the stator opposite to the first end, the first and second fans being configured to generate an air flow from the first fan to the second fan through the rotor and the stator, the first fan comprising an external ring connecting the radial ends of blades together. | 07-21-2011 |
| 20110273038 | MOTOR RING AND SPLASH SHIELD ARRANGEMENT FOR A FAN ASSEMBLY - A fan assembly includes a motor ring and an electric motor supported by the motor ring and including an output shaft defining a central axis, a brush assembly, and a motor end shield having at least one aperture and disposed adjacent the brush assembly. The fan assembly further includes a splash shield adjacent the motor end shield. The splash shield includes a rim having an inner surface in facing relationship with the motor end shield and configured to direct an airflow between the motor end shield and the splash shield in a substantially radial direction toward the central axis, and configured to redirect the substantially radial airflow through the aperture in a direction having both a radial and an axial component with respect to the central axis. | 11-10-2011 |
| 20110285222 | Sleeve Member for an Electric Machine - Embodiments of the invention provide an electric machine module including a module housing. The module housing can include a sleeve member coupled to at least one end cover and can define a machine cavity. In some embodiments, the sleeve member can include an inner perimeter and can be coupled to a stator assembly of an electric machine. In some embodiments, the electric machine can be positioned within the machine and at least partially enclosed by the module housing. In some embodiments, a coolant jacket can be defined by at least a portion of the sleeve member and at least a portion of the stator assembly. | 11-24-2011 |
| 20110298316 | Electric Machine Cooling System and Method - Embodiments of the invention provide an electric machine module and a method for cooling an electric machine. The electric machine module includes the electric machine including a stator with stator end turns and a housing enclosing the electric machine. An inner wall of the housing defines a machine cavity. The electric machine module also includes a cover coupled to the housing and extending radially inward into the machine cavity. The cover and the stator end turns define a stator cavity which is in fluid communication with the machine cavity. | 12-08-2011 |
| 20110298317 | Electric Machine Cooling System and Method - Embodiments of the invention provide an electric machine module and a method for cooling an electric machine. The apparatus and method include providing the electric machine including a rotor and a stator with stator end turns and enclosing at least a portion of the electric machine within a housing. The method also includes introducing a coolant into a machine cavity, directing the coolant toward the stator end turns, and returning a portion of the coolant which flows past the stator end turns back toward the stator end turns using a rotating agitator member operatively coupled to the rotor. | 12-08-2011 |
| 20110298318 | Gravity Fed Oil Cooling for an Electric Machine - Embodiments of the invention provide an electric machine module and a method for cooling an electric machine. The electric machine module includes an electric machine and a housing enclosing the electric machine within a machine cavity. The housing can include at least one end cap positioned axially adjacent to the electric machine and including a shroud protruding into the machine cavity. The shroud can include a step with an angled rotor feed path. | 12-08-2011 |
| 20110309699 | ELECTRIC MACHINE-COOLING - An electric machine ( | 12-22-2011 |
| 20120062056 | ELECTRIC MACHINE INCLUDING A STATOR HAVING A STATOR SLEEVE AND METHOD OF COOLING A STATOR - An electric machine including a housing, and a stator mounted relative to the housing. The stator includes a body including a first end portion that extends to a second end portion and a plurality of stator windings that extend between the first and second end portions. A sleeve member is mounted to the stator and covers a portion of the stator windings at one of the first and second end portions. The sleeve member is configured and disposed to guide a coolant over the portion of the stator windings to remove heat from the stator. | 03-15-2012 |
| 20120074799 | Electric Machine Cooling System and Method - Embodiments of the invention provide an electric machine module comprising an electric machine with a stator and housing at least partially circumscribing the electric machine. The housing includes at least two housing members coupled together and substantially securing the electric machine within the housing. The electric machine module also includes a coolant jacket at least partially defined by an outer diameter of the stator and an inner diameter portion of the housing. | 03-29-2012 |
| 20120080964 | Coolant Channels for Electric Machine Stator - Embodiments of the invention provide an electric machine module including an electric machine. The electric machine includes a stator assembly with a plurality of stator laminations. The plurality of stator laminations include a plurality of different outer diameters and some of the plurality of stator laminations include at least two different radii. At least one circumferential coolant channel and at least one axial coolant channel can be defined by the plurality of stator laminations. The at least one circumferential coolant channel can be defined substantially around a circumference of the stator assembly and the at least one axial coolant channel can be defined substantially along an axial length of the stator assembly. | 04-05-2012 |
| 20120080965 | Coolant Channels for Electric Machine Stator - Embodiments of the invention provide an electric machine module including an electric machine with a stator assembly. The stator assembly includes a plurality of stator laminations and the plurality of stator laminations include a plurality of different outer diameters. The plurality of stator laminations are positioned relative to one another to form radially-extending fins. At least one circumferential coolant channel is defined along the circumference of the stator assembly by the plurality of stator laminations at least partially between the radially-extending fins. | 04-05-2012 |
| 20120112572 | WELDED MANIFOLD FOR A STATOR HOUSING SEGMENT - A stator system for an electric machine, in particular a generator of a wind turbine is disclosed. The stator system includes a stator housing segment, a plate, supply system and a manifold segment. The stator housing segment includes a cooling channel which includes an opening at an axial front face of the stator housing segment. The plate is mounted to the axial front face for reinforcing the stator housing segment. The supply system is adapted for supplying cooling fluid to the cooling channel. The manifold segment is welded to the plate for forming a guide channel for the cooling fluid between the manifold segment and the plate. The plate includes a through-hole for generating a connection between the opening of the cooling channel and the guide channel. The supply system is connected to the guide channel. | 05-10-2012 |
| 20120119603 | ROTOR FOR A TURBO GENERATOR, AND TURBO GENERATOR COMPRISING A ROTOR - A rotor for a turbo generator is provided. The rotor includes a cylindrical rotor shaft that expands in the center to form a rotor body, grooves introduced into the cylindrical surface of the rotor body, an excitation winding accommodated in the grooves, a feeding duct through which a cooling gas flows, and cooling ducts which penetrate the excitation winding substantially in the radial direction and connect the feeding duct to respective outlets in the cylindrical surface of the rotor body A distribution duct extending in the longitudinal direction of the shaft is arranged in the area of the central longitudinal axis. The feeding ducts are connected to the distribution duct via junction ducts. An admission duct for feeding the cooling gas is provided for each distribution duct. | 05-17-2012 |
| 20120133222 | ELECTRIC VEHICLE USING ELECTRIC MOTOR AND ELECTRIC MOTOR - An electric motor includes a frame, a stator disposed in the frame, a rotor disposed in the frame, and a cooling unit configured to perform a cooling operation by supplying a cooling fluid into the frame. Under this configuration, a cooling function may be enhanced, and a high output density and high efficiency may be implemented. | 05-31-2012 |
| 20120175977 | Coolant Flow Enhancing Device For Stator Coil End Turns of Fluid Cooled Electric Motor - A coolant flow enhancing device is provided to increase electric machine coil cooling at coil end turn locations. Such a device is incorporated into an overall fluid cooled electric machine that has phase separators extending through slots between stator teeth. The device includes flow deflectors located at ends of the phase separators. Each of the flow deflectors is designed so that a contour of its interior surface follows an outer contour of a corresponding one of the end turns to both maximize a cooling fluid flow rate past the one of the end turns and minimize separation of the fluid from the one of the end turns. | 07-12-2012 |
| 20120212085 | AXIAL-FLUX ELECTRIC MACHINE - An axial-flux electric motor includes a stator having a plurality of stator windings and a plurality of stator pole-pairs, a first rotor configured to magnetically interact with the stator in an axial direction, the first rotor is positioned on one side of the stator, having a plurality of permanent magnets embedded thereon with a plurality of rotor pole-pairs, a second rotor configured to magnetically interact with the stator in the axial direction, the second rotor is position on another side of the stator, having a plurality of permanent magnets embedded thereon with a plurality of rotor pole-pairs, and a plurality of stationary ferromagnetic segments, positioned between the stator and the first rotor and between the stator and the second rotor, the ferromagnetic segments are adapted to modulate magnetic field of the permanent magnets in the axial direction. | 08-23-2012 |
| 20120223601 | TERMINAL BLOCK AND MOTOR PROVIDED THEREWITH - A terminal block ( | 09-06-2012 |
| 20120280581 | Electric Machine with Power Taps - Machines and motors with multiple three-phase AC power connections. A motor includes first, second, and third windings arranged to drive a rotator shaft. A first end of each winding is connected to a respective power input of a three-phase alternating current (AC) power source and a second end of each winding is connected to a neutral. The motor includes at least one intermediate tap connected to each of the first, second, and third windings at substantially equal respective distances between the neutral and the respective power inputs. The intermediate taps together provide a three-phase AC power output at a voltage that is less than the voltage of the three-phase AC power source. | 11-08-2012 |
| 20130015731 | METHOD FOR ON-LINE DETECTION OF LIQUID AND POTENTIAL FOR THE OCCURRENCE OF RESISTANCE TO GROUND FAULTS IN ACTIVE MAGNETIC BEARING SYSTEMS - A resistance to ground monitoring system for a magnetic bearing is disclosed. The system includes a dummy bearing arranged in a cooling loop and having a dummy bearing coil made up of an electrical winding that is configured to detect the resistance to ground for the dummy bearing coil. The electrical winding is communicably coupled to a sensing device that monitors the resistance to ground for the dummy bearing coil. Since the magnetic bearing is arranged within the same cooling loop, the resistance to ground for the dummy bearing coil is indicative of a resistance to ground for the radial bearing coils of the magnetic bearing. | 01-17-2013 |
| 20130057094 | LUBRICATION STRUCTURE OF GENERATOR MOTOR AND GENERATOR MOTOR - A lubrication structure of a generator motor, includes: at least two bearings rotatably supporting an input/output shaft of the generator motor; a gap provided between the two bearings; a cylindrical-shaped bearing attaching member attached to inner peripheral parts of the two bearings; and a through hole penetrating the bearing attaching member outward in a radial direction and opening in a position overlapping with the gap. | 03-07-2013 |
| 20130088104 | CENTRIFUGAL CONCENTRATOR WITH SUSPENDED ROTOR BOWL - An electric motor is provided with a hollow rotating drive shaft extending along the central axis of the motor, a stationary liquid supply line and a rotating union which communicates with the liquid supply line and the hollow interior of the drive shaft for supplying liquid to the hollow interior of the drive shaft. | 04-11-2013 |
| 20130093271 | ELECTRIC DEVICE DRIVE ASSEMBLY AND COOLING SYSTEM FOR ELECTRIC DEVICE DRIVE - Drive assemblies for electric devices, such as vehicles, include an electric motor that includes a rotor assembly and a stator assembly positioned within the rotor assembly. The stator assembly is fixed to a stationary axle and includes a pole and a coil around the pole. The rotor assembly includes a housing to which a plurality of magnets are attached. The rotor assembly is supported on the stationary axle by bearings. A drive mechanism, such as a sprocket, pulley or gear is provided on the housing of the rotor assembly and rotates with the housing. In various embodiments, the stationary axle includes an internal bore for receiving coolant, a longitudinal rib within the internal bore, and longitudinal channels in its outer surface. | 04-18-2013 |
| 20130113310 | Paper Shredder - Provided is a paper shredder comprising a housing ( | 05-09-2013 |
| 20130147291 | ELECTRIC MACHINE - OVER-MOULDING CONSTRUCTION - An electric machine ( | 06-13-2013 |
| 20130169079 | MOTOR COOLING SYSTEM - An apparatus includes an electric machine. The electric machine includes an internal housing, an armature coil disposed within the internal housing and separated from the internal housing by a gap, and a magnetic core associated with the armature coil. The apparatus also includes a fan configured to cause air to flow in the gap between the armature coil and the internal housing. | 07-04-2013 |
| 20130181554 | MOTOR ASSEMBLY AND PUMP APPARATUS - A motor assembly ( | 07-18-2013 |
| 20130221773 | ELECTRIC MACHINE MODULE - Embodiments of the invention provide an electric machine module including a stator assembly. The stator assembly includes a stator core comprising a plurality of slots. Conductors can be at least partially disposed within the slots. The conductors can include leg portions and can be positioned so that at least some of the slots include a first leg portion, a second leg portion, a third leg portion, and a fourth leg portion. The stator assembly can include first clearance apertures defined by between circumferentially adjacent first leg portions, second clearance apertures that can be defined between circumferentially adjacent second leg portions, third clearance apertures that can be defined between circumferentially adjacent third leg portions, and fourth clearance apertures that can be defined between circumferentially adjacent fourth leg portions. In some embodiments, the second and third clearance apertures can comprise a greater circumferential size relative to the first and fourth clearance apertures. | 08-29-2013 |
| 20130264897 | INTERNAL COOLING OF STATOR ASSEMBLY IN AN ELECTRIC MACHINE - Embodiments of the invention provide an electric machine module including an electric machine with a stator assembly. The stator assembly includes a plurality of stator laminations coupled together and a plurality of conductors positioned through axial slots of the plurality of stator laminations. The electric machine module also includes a coolant channel at least partially defined within the axial slots and a housing. The housing at least partially circumscribes the electric machine and at least partially defines a machine cavity which is in fluid communication with the coolant channel. | 10-10-2013 |
| 20130278091 | ROTARY MACHINE - A rotary machine capable of preventing leakage of a coolant and simply and efficiently cooling a rotor is provided. A motor | 10-24-2013 |
| 20130342048 | METHOD OF MANUFACTURING A LAMINATED WINDING AND A LAMINATED WINDING - A method of producing a cylindrical laminated winding with radial slots for electrical machines is disclosed. The method includes providing a strip of conducting material, cutting cuts in a strip where the cuts form the radial slots of the laminated winding, and winding the strip to form the cylindrical laminated winding whereby a radial distance is enclosed between adjacent winding turns. A laminated winding for an electrical machine is also disclosed, and includes a strip of conducting material. The strip is wound in a cylindrical manner and is provided with cuts which are located between winding turns of the laminated winding such that they together form continuous radial slots, wherein a radial distance is enclosed between adjacent winding turns. | 12-26-2013 |
| 20130342049 | COOLED MAGNET MOTOR - An electric motor/generator comprises a rotor with magnets mounted on the surface of the rotor, the magnets facing the stator over a gap. The magnets have a very high flux density but a limited ability to withstand high stator currents at high temperatures, preferably magnets made of the N48H material. By providing rotor magnet cooling means that reduces the temperature of the magnets by a cooling fluid, use of magnets with lower maximum working temperature and higher flux density is permitted and thereby higher flux can be obtained from the magnets. | 12-26-2013 |
| 20140015354 | GENERATOR MOTOR COOLING STRUCTURE AND GENERATOR MOTOR - A generator motor cooling structure for cooling a generator motor, which includes a housing storing an input/output shaft to which a rotor is attached and a stator disposed at an outer periphery portion of the rotor, by a cooling medium, includes: a protrusion portion that protrudes toward a coil of the stator from an inner surface of the housing of one end side in a direction of a central rotation axis of the input/output shaft to form a passage of the cooling medium between the coil and the protrusion portion, and is disposed around the central rotation axis. | 01-16-2014 |
| 20140054989 | COOLING DEVICE FOR COOLING A WINDING BRAID OF AN ELECTRICAL MACHINE AND METHOD FOR RETROFITTING THE ELECTRICAL MACHINE WITH THE COOLING DEVICE - A cooling device for cooling an air-permeable winding braid of an electrical machine is provided. The cooling device includes a baffle and a fan, which is arranged for blowing a stream of cooling air substantially perpendicularly onto a first surface portion of one side of the wind braid, wherein, in the region of a second surface portion of the side of the winding braid, arranged alongside the first surface portion, the baffle is arranged substantially parallel to and that a distance from the surface of the second surface portion such that a partial stream of the stream of cooling air is formed in the channel that is formed by the baffle and the second surface portion, and so, on the side of the winding braid that is opposite from the first-mentioned side, the other partial stream of the stream of cooling air, penetrating the winding braid, flows away from the winding braid without any return flow. | 02-27-2014 |
| 20140062230 | STATOR OF ROTATING ELECTRIC MACHINE - A stator includes an annular stator core having a plurality of slots arranged in the circumferential direction at predetermined intervals and a stator coil formed of a plurality of electric conductor wires mounted on the stator core. Each of the electric conductor wires has a plurality of in-slot portions received in the slots of the stator core and a plurality of turn portions that connect, on the outside of the slots, adjacent pairs of the in-slot portions. The stator coil has first and second coil end parts and that respectively protrude axially outward from a pair of axial end faces of the stator core. At each of the coil end parts, the turn portions of the electric conductor wires are stacked in a radial direction of the stator core, and the axial heights h | 03-06-2014 |
| 20140084720 | PERMANENT MAGNET MODULES AND ROTORS - A permanent magnet rotor comprising a rotor rim and a plurality of permanent magnet modules arranged on the outer or inner circumference of the rotor rim. The permanent magnet modules comprise a base adapted to be fixed to the rotor rim, one or more permanent magnets, and a central magnet support structure. The base and the central magnet support structure comprise a plurality of radial holes. The permanent magnet modules are adapted so that, when bolts are inserted in the radial holes to fix the central magnet support structure to the base, at least a portion of a first and a second surface of each permanent magnet remain substantially in conforming contact with a surface of the base and a surface of the central magnet support structure, respectively. | 03-27-2014 |
| 20140097714 | ELECTRICAL MOTOR - An electrical motor includes a motor case inside which an inner space is formed, a bearing disposed so as to pass through a wall of the motor case, a rotor shaft rotatably supported by the bearing, and an earth conductor fixed with the motor case and provided with a frame and an electrical conductor provided on the frame. The frame has an annular inner circumferential surface along an outer circumference of the rotor shaft and is fixed with the motor shaft. The electrical conductor is disposed on the inner circumferential surface of the frame so as to slidably contact its end with the rotor shaft. A bypass flow passage is provided between the earth conductor and the motor case. The inner space is communicated with an outside of the motor case via the bypass flow passage. According to the motor, its inside can be cooled without damaging the earth conductor. | 04-10-2014 |
| 20140111041 | ASSEMBLY FOR TEST APPARATUS WITH COOLING AND VENTING ASSEMBLIES - A testing apparatus includes a crosshead and a head assembly. The head assembly includes a head cover having an interior volume. An electric actuator, controls and other electric components are located within the interior volume, wherein the motor, controls and other electric components generates heat when energized. A divider within the interior volume separates a first volume from a second volume. The first volume includes the heat generating electric motor, controls and electric components and the second volume contains substantially no heat generating components. The head assembly includes at least one fan within the second volume that draws cool air from outside the head cover and forces the cool air through the second volume and into the first volume to remove heat. | 04-24-2014 |
| 20140125166 | ROTATING ELECTRICAL MACHINE - The disclosure discloses a rotating electrical machine including a stator and a rotor that are arranged facing each other via a magnetic air gap, an output shaft that is coupled to the rotor and is rotatably arranged by at least one bearing, and a fan that is coupled to the output shaft. The fan includes a disc portion configured to cover an end portion of the stator in an axial direction, and a plurality of blade portions that is provided on the stator side of the disc portion so as to protrude towards the stator. | 05-08-2014 |
| 20140239757 | Housing Arrangement for an Electrical Machine - A motor/generator unit is disclosed which is arranged to be fitted in the drive train of a vehicle, such as a hybrid vehicle. The unit comprises an electrical machine ( | 08-28-2014 |
| 20140265661 | SHEET METAL COOLING JACKET WITH BAFFLES - An electric machine includes a stator and a housing having at least two sheet metal sections, at least one cooling channel being formed at an axial end of the electric machine between the two sections. A method of cooling an electric machine includes forming two sheet metal housing sections to each include a radially inward extending portion at an axial end of the electric machine and an axially extending portion, and attaching the housing sections to one another at contiguous portions thereof, whereby at least one cooling channel is formed between the respective radially inward extending portions of the sections. A method of cooling an electric machine includes circulating coolant in a plurality of cavities formed between two sheet metal housing sections, the cavities including a cooling channel at an axial end of the electric machine. | 09-18-2014 |
| 20140300224 | ELECTROMECHANICAL FLYWHEEL CONTAINMENT SYSTEM - An electromechanical flywheel machine includes a multi-wall containment system used in connection with a motor-generator for exchanging energy with a flywheel mass. | 10-09-2014 |
| 20150054362 | Method and Device for Sensorless Control of a Separately Excited Synchronous Machine - A blade wheel for a rotary electric machine may include a hollow cylindrical main body having an outer surface extending around an axis of rotation in a circumferential direction of the main body; a first end region and a second end region of the main body, each peripherally extending around the main body in the circumferential direction, the first and second end regions lying opposite each other in the direction of the axis of rotation; a recess extending along the outer surface and between the first end region and the second end region of the main body in the circumferential direction; and at least one web-shaped vortexing element extending within the recess and between the first and second end regions. The at least one vortexing element is designed to generate a movement of air away from the outer surface when the blade wheel rotates about the axis of rotation. | 02-26-2015 |
| 20150061426 | ROTATING ELECTRICAL MACHINE - A rotating electrical machine is provided with: a plurality of bus bars that provide an electrical relay between an external power line, which is positioned on the outside of a housing, and a multiphase coil; an insulation cover that is mounted on the plurality of bus bars with a prescribed gap between each, and covers at least part of the bottom surface of each bus bar; and a coolant supply means that supplies a cooling fluid, which cools a stator, inside the housing. A through-hole, which vertically penetrates a bottom surface, is formed on the bottom surface of the insulation cover. | 03-05-2015 |
| 20150076940 | ROTARY ELECTRIC MACHINE - The rotary electric machine includes: a stator that includes: a stator core; and a stator coil; a ring member that accommodates the stator so as to hold the stator core in an internally fitted state; a housing case formed into a floored cylindrical shape with an opening at a first end portion, and that accommodates the ring member and the stator; and a cover mounted onto the first end portion of the housing case so as to cover the opening of the housing case, wherein a first end portion of each of the ring member and the housing case is fixed by fastening to the cover such that a fastening direction of each is oriented in an axial direction, and a second end portion of the ring member is fitted into and held by the housing case by means of an interfitting member. | 03-19-2015 |
| 20150076941 | METHODS AND APPARATUS FOR MOUNTING A MOTOR CONTROLLER ON A STATOR ASSEMBLY - An electric machine includes a motor having a motor chassis having a first and second end, a stator assembly, and a rotor assembly. The electric machine includes a motor control assembly having a circuit board. The motor control assembly is attached to the stator assembly of the motor. A first end shield is attached to the first end of the motor chassis. The first end shield includes a first opening that is configured to enable a cooling air stream to pass therethrough to cool the motor and the motor control assembly. | 03-19-2015 |
| 20150084454 | POLE UNIT AND STATOR ASSEMBLY FOR A WIND TURBINE GENERATOR, AND METHODS OF MANUFACTURING THE SAME - A pole unit for a stator assembly of a wind turbine generator, the pole unit including (a) a laminated body structure having a base portion, an intermediate portion, and a top portion, and (b) a coil wound around the intermediate portion, wherein (c) the intermediate portion extends from at least a part of an upper surface of the base portion, and wherein (d) the top portion extends from the end of the intermediate portion that is opposite to the base portion and has an increasing cross-section in the direction away from the intermediate portion is provided. A stator assembly including a plurality of pole units, a method of manufacturing a pole unit, and a method of assembling a stator assembly are also provided. | 03-26-2015 |
| 20150372567 | PURGE SYSTEM CAPABLE OF CONTROLLING FLOW RATE OF AIR - An air purge system includes an electric motor having an air purge device which supplies air to a space around the outer peripheral surface of an output shaft, an information acquisition unit which acquires operation information of the electric motor, and an air control unit, which controls the amount of air supplied from the air purge device in response to the acquired operation information. The air control unit increases the amount of the air supplied from the air purge device when the information acquisition unit acquires deceleration operation information of the electric motor. | 12-24-2015 |
| 20160020679 | INVERTER-INTEGRATED MOTOR - An inverter-integrated motor includes a motor housing in which a rotor and a stator are accommodated and an inverter housing in which a power module of an inverter with heat dissipating functions is accommodated, with one end of the motor housing and one end of the inverter housing integrally joined. The power module is arranged inside the inverter housing on the other end thereof, and a heat diffusion member is disposed between the power module and an inner surface of the inverter housing. | 01-21-2016 |
| 20160043606 | GENERATOR STATOR INSTALLATION - An electrical generator section includes a case, a screen ring, first and second stator sections, and a rotor. The case has a plurality of circumferentially-spaced axial flow cooling air inlets, and first and second electrical connector ports. The screen ring is broken by a circumferential gap, and is secured over the cooling air inlets. The first stator section is heat-fitted into the case in a location axially forward of the screen ring, while the second stator section is heat-fitted into the case in a location axially aft of the screen ring. The first stator section is connected to the first electrical port through the circumferential gap, and the second stator section is connected to the second electrical port. The rotor is disposed radially inward of the first and second stator sections. | 02-11-2016 |
| 20160087497 | ELECTRICAL MACHINE - The present invention relates to an electrical machine having a stator. The stator comprises a plurality of slots for receiving a stator winding. One respective conductor section of the stator winding is inserted into each slot. The conductor sections of at least one pair of poles are short-circuited to one another on a first side of the stator. The conductor sections on a second side of the stator, opposite from the first side, are each connected to a terminal of a power supply unit. The power supply unit consists of two annular electrical conductors, between which at least one power-electronics component is arranged. | 03-24-2016 |
| 20160087499 | ELECTRIC MACHINE HAVING AN IMPROVED COOLING OF THE WINDING HEAD - The invention relates to an electric machine comprising a rotor ( | 03-24-2016 |
| 20160104658 | PEDESTAL SURFACE FOR MOSFET MODULE - An electronic package connectable to an electric machine includes a cooling tower having a metallic wall with a radially outer wall surface. The radially outer wall surface includes discrete, radially outwardly projecting pedestals. The planar pedestal mounting surfaces are parallel with the central axis such that the radial distance between the axis and the radially outer wall surface is greater within the periphery than outside the periphery. Power modules are mounted to the pedestals. Each power module includes a base in thermal contact with a pedestal mounting surface and an opposing interior surface in thermal communication with a MOSFET power electronics device. A cover plate is spaced from the base interior surface. A dielectric housing member surrounds the MOSFET power electronics devices. An electrical connection terminal is disposed outside the periphery of each module. An electric machine including such an electronic package is also disclosed. | 04-14-2016 |
| 20160105085 | CIRCUIT LAYOUT FOR ELECTRIC MACHINE CONTROL ELECTRONICS - An electronic package adapted for connection to a rear frame member of an electric machine. The electronic package includes a support structure having opposite first and second axial ends spaced along a package central axis. A plurality of power electronics devices connected to the support structure and electronic control circuitry is carried by the support structure. The electronic control circuitry is substantially surrounded by and operatively connected to the power electronics devices. The control circuitry includes circuit board material having opposing substantially parallel sides, wherein the control circuitry comprises first and second control circuit portions respectively disposed on separate first and second circuit board material portions wherein the first and second circuit board material portions substantially coextend with distinct first and second imaginary planes, respectively. An electric machine employing such an electronic package is also disclosed. | 04-14-2016 |
| 20160156237 | SEPARATOR FOR SEPARATING WINDINGS | 06-02-2016 |
| 20160164375 | Air Flow System For An Enclosed Portable Generator - An airflow system for an enclosed portable generator is provided that efficiently cools internal components by collecting an airflow and directing the entire airflow past a heat generating component such as an inverter module assembly before releasing the airflow in an unrestricted manner into an open interior space of the portable inverter generator. The airflow system includes an intake plenum system with a plenum body configured to collect and concentrate a volume of air as an intake airflow and to damp sound emission from a front side of housing of the generator. | 06-09-2016 |
| 20160172926 | MOTOR DRIVE COVER | 06-16-2016 |
| 20160380490 | ROTARY ELECTRIC MACHINE - The invention relates to an electric machine comprising a stator, this stator comprising a set ( | 12-29-2016 |
