Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 8179002 | Axial cooled generator A wind turbine having a generator is provided. The generator includes a rotor and a stator having a stator lamination, one or more flange rings and one or more core rings. The stator lamination includes a plurality of axial flow passages and the one or more core rin... | 05/15/2012 |
| 7705496 | Housing for an electrical machine The housing of an electrical machine should, despite efficient cooling, be provided with a more compact design. To this end, the invention provides that the cooling ducts (2) of a housing (1), which is preferably provided in the form of an aluminum ext... | 04/27/2010 |
| 7443062 | Motor rotor cooling with rotation heat pipes A heat pipe is partially-filled with a liquid, such as water, and is used to transfer heat from a rotating element, such as a rotor, via phase change and internal recycle of the liquid. Several heat pipes may be disposed radially around the rotating axis of the rota... | 10/28/2008 |
| 7443064 | Permanent-magnet generator having protrusions for dissipating heat A permanent-magnet generator includes a flywheel having a ringlike portion and a bottom portion which closes off one end of the ringlike portion and a plurality of protrusions bulging inward from the bottom portion of the flywheel. An irregular surface portion is fo... | 10/28/2008 |
| 7411323 | Electrical machine having cooled laminated stator and rotor cores and windings High-power electric machines must be intensively cooled. At the same time, it is necessary to ensure a high level of immunity to impurities. For this purpose, the rotor and stator sheet packs (41, 42, 61, 62) are embodied in two parts, thereby making it possi... | 08/12/2008 |
| 7372182 | Axial gap alternator associated with a flywheel An axial gap alternator comprises a first carrier associated with or secured to an output shaft of an internal combustion engine. A first carrier carries a first set of magnets arranged radially about a rotational axis. A second carrier carries a second set of magne... | 05/13/2008 |
| 7362019 | Vehicle alternator A vehicle alternator for generating electric power has a stator, a rotor, a rectifier, a regulator case, and a cooling fin part. A stator winding is wound on the stator. The rotor is placed on opposite faces to the stator. The rectifier rectifies an alternating curr... | 04/22/2008 |
| 7327055 | Permanent magnet generator with an integral cooling system A cooling system for a sealed permanent magnet generator is disclosed that has a rotor shaft that is hollow. Permanent magnets mount on the exterior of the hollow rotor shaft. The rotor shaft has a pressed aluminum tube in various configuration on the inside bore wi... | 02/05/2008 |
| 7271514 | Rotor structure A rotor includes a rotary shaft, a rib provided on the rotary shaft, and a disc-form holding member. The holding member is joined to an axial end face of the rib. The holding member is thereby coupled with the rotary shaft. The holding member is provided with perman... | 09/18/2007 |
| 7247958 | Dynamo-electric machine The invention prevents a temperature in an end portion of a stator iron core from becoming excessively high due to a heat generated in the end portion of the stator iron core of a turbine generator. In a dynamo-electric machine provided with a stator constituted by ... | 07/24/2007 |
| 7227286 | Long life fan motor There is provided a fan motor in which an increase in the temperature of windings thereof is surpressed, thereby achieving a long life and high performance. Vent holes 33 for introducing air into a cup-like member 9 are formed in a bottom wall section ... | 06/05/2007 |
| 7196440 | Electric manual machine tool driven by an electric motor A hand power tool that is driven via an electric motor (20), the electric motor (20) having a commutator (28) which is formed of disklike annular segments or laminations (32), is made more secure against contact spark development by provi... | 03/27/2007 |
| 7190094 | Multi-path cooling of a turbo-generator rotor winding A turbo-generator includes a rotor body and a rotor winding disposed around the rotor body. The rotor winding including a sub slot, a first axial cooling duct having a first inlet and a first outlet, and a second axial cooling duct disposed adjacent and parallel to ... | 03/13/2007 |
| 7173358 | Rotor for an electrical machine A rotor for an electrical machine, including axial conductors for the rotor field windings inserted into axial slots in the rotor body and are secured against the forces which occur during operation by peripherally arranged means, wherein a single conductor is dispo... | 02/06/2007 |
| 7156195 | Cooling system for electric motor of vehicle A cooling system for an electric motor of a vehicle comprises an electric motor which drives the vehicle, a reduction gear which adjusts a driving force of an output shaft of the electric motor and transmits the driving force to a drive shaft, and an in-shaft refrig... | 01/02/2007 |
| 7145274 | Magnetoelectric generator A magnetoelectric generator includes a bowl-like flywheel (3) having a bottom portion (6) formed with ventilation holes (20), a plurality of permanent magnets (7) secured to an inner circumferential surface of the flywheel (3), a s... | 12/05/2006 |
| 7141898 | Gas-cooled generator Gaseous coolant, preferably helium, flows from coolers 12 past the winding overhangs 7 of the stator 3, then through cooling channels in the rotor 1, then into the rotor/stator gap 4, then through cooling ducts in the stator core | 11/28/2006 |
| 7138735 | Internal ventillating system for a rotating electrical machine such as a motor vehicle alternator The invention concerns a rotating electrical machine, comprising inside a housing, a fixedly mounted stator and a rotor rotatably mounted in the stator, the ventilating system including in particular at least one ventilator integral with the rotor and capable of gen... | 11/21/2006 |
| 7122923 | Compact high power alternator An apparatus for converting between mechanical and electrical energy, particularly suited for use as a compact high power alternator for automotive use and “remove and replace” retrofitting of existing vehicles. The apparatus comprises a rotor with permanent mag... | 10/17/2006 |
| 7102259 | Rotor of a synchronous induction electric motor A rotor of a synchronous induction electric motor according to the present invention includes a slot for generating induction torque and a slit for generating reluctance torque. The slot and the slit are filled up with aluminum which is short-circuited by an end-rin... | 09/05/2006 |
| 7061148 | Device for cooling an electrical machine, in particular a synchronous electrical machine having permanent magnets The cooling device according to the invention comprises, in each of the stator recesses which contain windings, a cooling tube located in the longitudinal direction of the recess and supplied with cooling fluid. The cooling tube is located in the inlet portion of ea... | 06/13/2006 |
| 7057314 | Electromagnetic motor system capable of removing heat away from its magnetic gap An electromagnetic drive motor assembly (EDMA) has at least one bridge that extends along a radial direction to conduct heat away from the magnetic gap and towards the outer surface of the EDMA. The EDMA includes a conductive ring between a first plate and a second ... | 06/06/2006 |
| 7034417 | Rotor assembly capable of dissipating heat A rotor assembly capable of dissipating heat comprises a shied cover and a hub. The shied cover provides a closed end and an open end with a lateral wall thereof being joined to the closed end and at least a through hole being provided at the closed end. The hub pro... | 04/25/2006 |
| 7012345 | Electromagnetic motor with flux stabilization ring, saturation tips, and radiator The present invention provides an electromagnetic drive motor assembly (EDMA) that has an inner flux return assembly formed from an upper pole piece and a lower pole piece oppositely disposed relative to each other along the center of the EDMA. An annularly position... | 03/14/2006 |
| 6995479 | Hydro-electric farms An underwater hydro-electric farm comprising a plurality of electrical generator assemblies arranged in an array on a bottom surface of a body of water within an ocean current path to take generate power from a kinetic energy caused by the flow of the underwater cur... | 02/07/2006 |
| 6992412 | Rotary electric machine having laminated armature core An armature composed of a shaft and an armature core is rotatably supported in a housing of a rotary electric machine. The shaft is forcibly inserted into a center hole of the armature core formed by laminating core sheets. Each core sheet has a center hole and oute... | 01/31/2006 |
| 6979925 | Electrical driving arrangement The invention concerns an electric drive device, namely a transverse flow motor. The transverse flow motor has a stator and a rotor, whereby the stator includes U-shaped stator blades which form a cylindrical ring, and whereby the rotor has permanent magnets which a... | 12/27/2005 |
| 6954010 | Lamination cooling system An electric motor, transformer or inductor having a lamination cooling system including a stack of laminations, each defining a plurality of apertures at least partially coincident with apertures of adjacent laminations. The apertures define a plurality of cooling-f... | 10/11/2005 |
| 6943469 | Supplemented zonal ventilation system for electric generator An electrical generator (80) utilizes supplemental blowers or fans (140) to move additional cooling fluid through coolant flow paths (116, 124) in the generator, thus reducing the internal temperature of the generator. The supplemental blower co... | 09/13/2005 |
| 6940192 | Air-cooled motor An air-cooled motor has a motor body in which a through hole is formed in a rotary shaft, a supply section for supplying a fluid to the through hole, a cylindrical member surrounding the supply section, and a cooling fan provided on the side opposite the motor body ... | 09/06/2005 |
| 6936939 | Rotating electric machine and cooling method thereof A rotating electric machine having a plurality of ventilating passages formed between a stator frame and a stator iron core and coolers which cool a coolant being provided in the plurality of the ventilating passages. A ventilating circuit in which at least a portio... | 08/30/2005 |
| 6933638 | Electric motor having a reverse air flow cooling system An electric motor having a reverse air flow cooling system that eliminates the need to extend lead wires past the fan. The electric motor includes a fan positioned on the lead-end of the motor to move air through a housing of the electric motor in a direction genera... | 08/23/2005 |
| 6903470 | High speed generator with high-power rotating rectifiers cooling system A rectifier hub and associated cooling method provide increased cooling efficiency for rotating rectifier diodes in a dry cavity generator. The rectifier hub has an inner and an outer circumferential surface and includes at least one pair of flow passages, and at le... | 06/07/2005 |
| 6888286 | Stator coil assembly for superconducting rotating machines A stator support system for supporting a stator coil assembly includes an inner support tube having an outer surface; spaced windings supported on the inner support tube with spaces between adjacent windings defining gaps; support members, each disposed within one o... | 05/03/2005 |
| 6815848 | Air cooled electrical machine An electrical machine has a stator, a rotor, and radially extending coolant passageways provided in a laminated core section of at least the stator. The coolant passageways are defined between axially spaced stacks of laminations in the laminated core section. The r... | 11/09/2004 |
| 6798097 | Stator cooling The present invention relates to an electrical machine and more particularly to an arrangement of cooling passages within the stators of such machines. Cooling fluid is caused to pass through a number of channels provided in a space between winding discs to provide ... | 09/28/2004 |
| 6777836 | Heat transfer enhancement at generator stator core space blocks A ventilation pathway for a cooling gas to flow extends on a radial axis in a generator stator core. The ventilation pathway comprises at least two magnetic laminations and a plurality of space blocks extending radially in the generator stator core. The space blocks... | 08/17/2004 |
| 6750572 | Generator with improved lubrication and cooling system A lubricating and cooling system for a high speed generator that directs a lubricating and cooling medium through the generator housing. The lubricating and cooling medium may be supplied to the generator on either end of the housing. A portion of the medium is supp... | 06/15/2004 |
| 6737768 | Rotating electric machine A rotating electric machine having a plurality of ventilating passages formed between a stator frame and a stator iron core, a cooler which cools a coolant is provided at least in one ventilating passage, communicating with a central portion of the stator iron core,... | 05/18/2004 |
| 6727609 | Cooling of a rotor for a rotary electric machine A high-power electrodynamic machine has a relatively elongated rotor. In a preferred generator embodiment, a rotor having a winding formed integral therewith is integral to a hollow shaft mounted within a stator having a plurality of windings. The shaft has an axial... | 04/27/2004 |
