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| Number | Title | Issue Date |
| 6617713 | Stagnant rotating prevention and safety control device for a main shaft A stagnant rotating prevention and safety control device for a main shaft is disclosed. The control device is provided with an oil fume detector, temperature control module and a vibration module of a rotating member, characterized in that the oil fume de... | 09/09/2003 |
| 6600249 | Brushless DC ring motor cooling system A cooling system for a vehicle includes a shroud attachable to a fixed portion of the vehicle. A stator assembly for a brushless DC ring motor is attached to at least one mounting support of the shroud. A cooling fan is piloted on the stator assembly, and... | 07/29/2003 |
| 6586853 | Rotary cooling fan for an AC generator Since a structure of a cooling fan of an alternative current generator for a vehicle is formed with a resin molding product having an insert metal fitting, a freedom degree on said fan design shape configuration and said installation performance of said f... | 07/01/2003 |
| 6583526 | Generator stator core vent duct spacer posts Generator stator cores are constructed by stacking many layers of magnetic laminations. Ventilation ducts may be inserted between these layers by inserting spacers into the core stack. The ventilation ducts allow for the passage of cooling gas through the... | 06/24/2003 |
| 6577027 | Electrical equipment winding structure providing improved cooling fluid flow A winding structure of induction electric apparatus cooling disc windings within a cooling block evenly. With respect to a pair of cooling blocks including a cooling block A disposed upstream of axial insulating cylinder cooling flow of a blocking plate b... | 06/10/2003 |
| 6573624 | Stator structure of a reciprocating motor having a plurality of unit-stacked core members A stator structure of a reciprocating motor is provided. In the stator structure of a reciprocating motor, a bobbin around a coil is wound; a plurality of unit stacked core members of a predetermined thickness, each of which is formed by stacking a plural... | 06/03/2003 |
| 6563240 | Electric motor having a rain baffle An electric motor having a rain baffle which is supported relative to and within the motor housing to prevent rain or the like which may enter ventilation outlets in the housing from contacting the rotor shaft bearing and the electrical components positio... | 05/13/2003 |
| 6558116 | Gas-cooled machine, in particular a turbo-generator A turbo-generator comprising a shaft, on which is positioned an axial ventilator, a cover that divides an inflow chamber for a cooling gas transported by the axial ventilator from an outflow chamber for this cooling gas, and a cylindrical channel segment ... | 05/06/2003 |
| 6552452 | Dynamoelectric machine rotor ventilation A dynamoelectric machine has a stator member, a rotor member, a first shroud and a second shroud. The first shroud and the second shroud members are mounted to the rotor adjacent respective first and second end portions of the rotor for rotation with the ... | 04/22/2003 |
| 6552454 | Generator structure incorporating multiple electrical generator sets A generator structure is provided for generating electrical power. The generator structure includes an enclosure having first and second spaced sidewalls interconnected by first and second end walls so as to define an interior. First and second generator ... | 04/22/2003 |
| 6541890 | Brush-less rotary electric machine having stator cooling arrangement A brush-less rotary electric machine is comprised of a frame having a first and second walls, a stator core fixed to the frame, an armature coil formed of conductor segments, a stationary yoke, a rotary yoke disposed opposite the stationary yoke, first cl... | 04/01/2003 |
| 6538352 | Automotive alternator having a rectifier heat sink and voltage regulator heat sink integrated in one single support structure A supporting member is an annular molded resin body integrating a brush holder and a rectifier circuit board. First and second heat sinks mounted with unidirectional conducting component packages constituting a rectifier and a voltage regulator circuit bo... | 03/25/2003 |
| 6538351 | Rotating machine with plural coolers in plural ventilation passages A rotating machine having a stator core and coolers for cooling a cooling medium which is circulated inside the machine by the rotation of a fan installed near a rotating axis of the rotating machine. The coolers being installed in a ventilation passage f... | 03/25/2003 |
| 6531795 | Drive system A drive system for a motor vehicle includes a drive shaft and an electric machine operatively connected to the shaft for rotating the shaft and obtaining electric energy during rotation of the drive shaft. The electric machine includes a stator arrangemen... | 03/11/2003 |
| 6528910 | Cooling arrangement of vehicle rotary electric machine A vehicle rotary electric machine includes a rotor having a plurality of claw-shaped pole pieces, a cooling fan, a stator core, a stator winding and a frame. A coil-end-gap is formed along the axial end of the stator core between outside portions of the s... | 03/04/2003 |
| 6528919 | Brushless motor having water draining portion A brushless motor includes a motor holder and a case connected thereto. A ventilation chamber is defined between the motor holder and the case. The ventilation chamber includes an air inlet portion, an air outlet portion and water draining portions. The a... | 03/04/2003 |
| 6522046 | Vehicular AC generator A vehicular AC generator comprising a pair of cores included in a rotor and supported by a rotating shaft, a plurality of trapezoidal-shaped claws as magnetic poles protruding on the outer periphery edges of the pair of cores, and a pair of fans attached ... | 02/18/2003 |
| 6522045 | Vehicular AC generator A vehicular AC generator comprising a pair of cores included in a rotor and supported by a rotating shaft, a plurality of trapezoidal-shaped claws as magnetic poles protruding on the outer periphery edges of the pair of cores, and a pair of fans attached ... | 02/18/2003 |
| 6522036 | Motor with a heat dissipating assembly A motor with a heat dissipating assembly includes a hollow block, a stator fixedly mounted in the block and a rotor rotatably mounted in the stator. A first gap is formed between the block and the stator. A second gap is formed between the stator and the ... | 02/18/2003 |
| 6515384 | Motor/generator with equalized coolant distribution A rotor (2) of a motor is fixed to a rotation shaft (9) and a stator (5) is disposed on the outer side. The stator (5) is provided with a plurality of slots (6) opening towards an outer periphery of the rotor (2). The openings of each slot (6) facing the ... | 02/04/2003 |
| 6507133 | Stator arrangement of vehicle AC generator A vehicle AC generator including a three-phase stator winding, a rotor which has at least 16 claw pole pieces and is rotatable at a speed for the stator winding to provides AC output power more than 2.7 kHz, a stator core which has a plurality of axially ... | 01/14/2003 |
| 6504273 | Adjustable space block baffle for generator and method for controlling ventilation flow A baffle structure that has a generally curved surface profile so that ventilation windage loss can be significantly reduced is provided. In an exemplary embodiment, the orientation and/or the height of the baffle can be adjusted to adjust flow gaps defin... | 01/07/2003 |
| 6499532 | Electric motor cooling system An electric motor cooling system including an electric motor with an air coolant inlet and an air coolant outlet, a first housing extending over and affixed to the electric motor with an air flow passageway therein, a first blower secured to the first hou... | 12/31/2002 |
| 6495936 | Rotating electrical machine This invention prevents leakage of cooling medium from a cooling passage in the interior section of a slot of a stator. Coils are housed in the slot of the stator core. The openings of the slot are covered in order to form a cooling passage in the slot. A... | 12/17/2002 |
| 6489698 | Electrical machine An electrical machine formed as a generator for a motor vehicle, comprising a stator provided with a stator winding; a cooling casing which surrounds said stator and through which a heat transmitting medium can pass; a circuit in which the heat transmitti... | 12/03/2002 |
| 6489697 | Rotating electrical machine with improved circulating path for coolant A rotating electrical machine includes, a cooling circuit 4 is provided for introducing oil to inside a housing, for cooling an inner periphery and outer periphery of a slotless stator in that order. Moreover, there is also provided a cover plate for prev... | 12/03/2002 |
| 6472781 | Fan Motor A fan motor with an improved inhaling structure so as to enhance ventilation efficiency and performance, as well as cooling performance. An outer housing member 7 has a respective face opposite to a drive unit 11. An intake hole 13 of an arbitrary diamete... | 10/29/2002 |
| 6472782 | Drive spindle with two-stage static deflector A drive spindle is provided with an electric motor, an output shaft of which defines a tool-bearing spindle rotatable about a longitudinal axis, and with a cooling device for the electric motor; the cooling device having an impeller mounted for rotation a... | 10/29/2002 |
| 6469407 | Electrical machine with a cooling device An electrical machine with a cooling system for the removal of waste heat includes a stator laminated core having a plurality of first sheet metal laminations stacked to form a first core part having a plurality of axial passages arranged on a reference c... | 10/22/2002 |
| 6465917 | Spaceblock deflector for increased electric generator endwinding cooling A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located between adjacent endwindings thereby to define a plurality ... | 10/15/2002 |
| 6455959 | Cooling arrangement for an electrical machine of a vehicle A cooling arrangement for an electrical machine--for example, a permanent-field synchronous machine of a vehicle. The electrical machine is connected to the engine block of the vehicle. In order to ensure cost-effective cooling of the electrical machine, ... | 09/24/2002 |
| 6441518 | Liquid-cooled electrical machine with parallel flow An electrical machine comprising a rotor (26) mounted on a shaft (29) for rotation therewith and defining an axis of rotation, and a stator (54) disposed coaxially with and in opposition to the rotor (26). The electrical machine further comprises a housin... | 08/27/2002 |
| 6437468 | Permanent magnet rotor cooling system and method A permanent magnet rotor cooling system and method in which the rotor end cap includes an axially extending bore with a plurality of radially extending holes aligned with holes in the sleeve around the permanent magnet to provide cooling air flow to the a... | 08/20/2002 |
| 6426580 | Vehicular AC generator A vehicular AC generator comprising a pair of cores included in a rotor and supported by a rotating shaft, a plurality of trapezoidal-shaped claws as magnetic poles protruding on the outer periphery edges of the pair of cores, and a pair of fans attached ... | 07/30/2002 |
| 6417585 | Vehicular AC generator The present invention has been made aiming at decreasing sound pressure of the cooling wind and increasing cooling effect of the vehicular ac generator. The arrangement is such that a case is composed of a pair of opposing brackets having exhaust port rib... | 07/09/2002 |
| 6417586 | Gas cooled endwindings for dynamoelectric machine rotor and endwinding cool method A gas cooled dynamoelectric machine is provided that includes a rotor having a body portion, axially extending coils, endwindings, and a plurality of spaceblocks disposed between the endwindings, so that a plurality of cavities are defined between mutuall... | 07/09/2002 |
| 6414407 | Liquid-cooled electrical machine with integral bypass An electrical machine comprising a rotor (26) mounted on a shaft (29) for rotation therewith and defining an axis of rotation, and a stator (54) disposed coaxially with and in opposition to the rotor (26). The electrical machine further comprises a housin... | 07/02/2002 |
| 6400049 | Cooling fan A cooling fan includes a circuit board fixedly mounted inside a housing around a shaft to hold a fixed winding assembly, a fan blade assembly coupled to the shaft of the housing, the fan blade assembly having a countersunk hole at the center of the hub th... | 06/04/2002 |
| 6396176 | Electric motor fan seal ring An electric motor cooling fan having a seal ring reduces cooling air recirculation inside the motor which increases the cooling of motor windings for the prevention of motor failures and increases motor reliability. The cooling fan includes two opposed, s... | 05/28/2002 |
| 6392320 | Gas-cooled electrical machine having an axial fan In a gas-cooled electrical machine having an axial fan (12a) and a downstream guidance mechanism, arranged downstream of the axial fan, in order to raise the pressure of a cooling gas, the cooling gas is driven in a forced manner by means of the axial fan... | 05/21/2002 |
