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| Number | Title | Issue Date |
| 8026643 | Electrical machine with an internally cooled rotor The invention relates to an electrical machine with an internally cooled rotor. In order to improve the cooling power of such a machine without the use of a fan wheel fitted separately on the rotor, the invention proposes an electrical machine with a stator laminate... | 09/27/2011 |
| 8018103 | Driving mechanism A driving apparatus includes: a rotating electrical machine; an inverter capable of supplying electric power to the rotating electrical machine; an electrical device connected to the inverter; a containing case capable of containing the rotating electrical machine, ... | 09/13/2011 |
| 7999424 | 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 c... | 08/16/2011 |
| 7982346 | Motor-type power device Due to a centrifugal force in a vehicle width direction due to turning of an automobile, oil in an electric motor housing chamber housing an electric motor and oil in a transmission housing chamber housing a reduction gear and a differential gear flows to-and-fro vi... | 07/19/2011 |
| 7977831 | Electromotor An electromotor has an external stator, and a ventilator vessel which is used to produce a cooling air flow for self-ventilation of the electromotor. In order to improve the cooling of an electromotors, it is proposed to use a ventilator vessel to help direct an air... | 07/12/2011 |
| 7956500 | Liquid-cooled machine A machine includes an inner air-cooled rotor and an outer liquid-cooled stator, in which the stator includes a radial cooling arrangement arranged to convey a cooling liquid radially in the stator. ... | 06/07/2011 |
| 7898127 | Stator of rotating electric machine A stator of a rotating electric machine is obtained, in which material usage in a conductor connection section of a stator coil end and weight of the conductor connection section are reduced, so that vibration suppression is improved, in addition, thermal resistance... | 03/01/2011 |
| 7898126 | Inverter-integrated rotating electric machine having improved thermal characteristics An inverter-integrated rotating electric machine includes an enclosure in which a vent hole is formed, an AC motor accommodated in the enclosure, the AC motor including a rotor and a fan whose rotation introduces external air into the enclosure from outside through ... | 03/01/2011 |
| 7893574 | Rotor of rotary-electric machine In a rotor of a rotary-electric machine, in order to improve a cooling performance of a rotor winding on an end portion of the rotor in an axial direction, the rotor winding being held by a retaining ring of the rotor winding formed by laminating conductors in slots... | 02/22/2011 |
| 7888829 | Vehicle AC generator The vehicle AC generator includes a frame including an end wall section and a peripheral wall section, a stator core, a stator coil having rear and front coil ends projecting axially rearward and frontward respectively from the stator core, a rotor supported by the ... | 02/15/2011 |
| 7872381 | Counter-rotating axial-flow fan A counter-rotating axial-flow fan is provided that is capable of increasing effect of cooling a stator. One or more through-holes 83 penetrating support frame bodies (21, 75) in the axial direction are formed in support frame bodies 21 and 75... | 01/18/2011 |
| 7800261 | Rotary electric machine with stator outer surface designed to enhance heat dissipation According to the present invention, a rotary electric machine includes a rotor with a rotary shaft, a stator surrounding an outer periphery of the rotor, and a frame supporting the rotor and the stator. Further, the stator has an outer surface at least part of which... | 09/21/2010 |
| 7800262 | Centrifugal drop fan and valve with sliding motor A combined centrifugal fan and valve to exhaust air outside of a building when running and to prevent air from escaping when not running. The electrical motor design is to allow the rotating parts of the motor to slide along the motor shaft axis. The vertical positi... | 09/21/2010 |
| 7786630 | 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 wedg... | 08/31/2010 |
| 7777373 | Cooling device of an electrical machine The invention relates to a cooling device (1,2) pertaining to an electrical machine (10), said cooling device (1,2) comprising at least one rod-shaped heat-conducting means (3,4) for heat-conductive connection to the electrical machine ( | 08/17/2010 |
| 7763996 | Method and apparatus for cooling generators A baffle for guiding cooling fluids in a power generator cooled by a cooling fluid and having a flange, a stator, and an end stator has an inclined surface configured to direct a first portion of the cooling fluid flow towards the flange, a second portion of the coo... | 07/27/2010 |
| 7759828 | Integrated electric motor driven compressor A motor driven compressor assembly includes a motor housing having a fluid inlet and a fluid outlet. A motor is disposed within the motor housing and includes a rotor that is coupled to a rotatable shaft and a stator. Several passages fluidly connect the fluid inlet... | 07/20/2010 |
| 7741739 | Automotive alternator A cooling airflow introducing guide portion is disposed on a portion of a connector that faces fins of a voltage regulator heatsink so as to extend in a direction of array of the fins so as to ensure a predetermined clearance relative to the fins. An air intake aper... | 06/22/2010 |
| 7723875 | Bearing and cover assembly for a rotating electrical machine and a rotating electrical machine containing such an assembly Protective bearing and cover assembly, for an internally ventilated rotating electrical machine, has centrally an axially orientated axis and comprises on the one hand at least one electronic component carried by the bearing and protected by the cover having at leas... | 05/25/2010 |
| 7714468 | Magnetoelectric generator In order to achieve the above object, according to one aspect of the present invention, there is provided a magnetoelectric generator including: a flywheel rotating around an axis of rotation; a plurality of magnets disposed on an inner peripheral surface of the fly... | 05/11/2010 |
| 7714467 | Electric machine with coolant guiding channel and corresponding cooling method The aim of the invention is to optimise cooling electric machines. As a result, a coolant channel (7) is disposed around the cylindrically-shaped magnet arrangement of the electric machine. Said coolant channel can evenly distribute a coolant in the periphera... | 05/11/2010 |
| 7692341 | 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 in... | 04/06/2010 |
| 7683510 | System and method for managing air flow in a motor Certain exemplary embodiments can comprise a system for managing air flow within an induction motor, such as in the rotor assembly of the motor. The system can comprise a gap blocker to substantially impede air flow through radial apertures defined by and/or near en... | 03/23/2010 |
| 7642680 | Rotary electrical machine A rotary electrical machine comprises: a stator core; a rotor core arranged at the inner periphery of this stator core; a bracket connected with one end of the stator core; a first bearing arranged by means of the bracket; a frame and a housing connected with the ot... | 01/05/2010 |
| 7638909 | Rotor of rotary-electric machine In a rotor of a rotary-electric machine, in order to improve a cooling performance of a rotor winding, in a rotor winding on an end portion of the rotor in an axial direction, the rotor winding being held by a retaining ring of the rotor winding formed by laminating... | 12/29/2009 |
| 7635932 | Dynamoelectric machine having heat pipes embedded in stator core Thermal management of an electric machine is implemented by selecting a stator core configuration in accordance with an intended machine application and determining the minimum heat dissipation necessary to maintain the temperature of the core segment configuration ... | 12/22/2009 |
| 7633195 | Electrical machine with integrated electronic power device An electrical machine (10) includes a rotor (12) and a stator (11) arranged within a machine housing (23) which are cooled by at least one cooling circuit (16A, 16B). The machine (10) further includes power semiconduc... | 12/15/2009 |
| 7633196 | Vehicle-use alternator The vehicle-use alternator includes a cooling fan rotating in one with a rotating shaft thereof to generate cooling air diffusing substantially in a radial direction of the rotating shaft, to thereby cool a stator thereof. A housing thereof rotatably supporting the ... | 12/15/2009 |
| 7619332 | Permanent magnet type electric rotating machine and wind turbine electric power generation system A permanent magnet type electric rotating machine comprises a stator having a distributed winding and a permanent magnet rotor, wherein the permanent magnet rotor is provided with a wind passage in an axial direction thereof. ... | 11/17/2009 |
| 7598634 | Fan motor In a fan motor, a fan boss of a fan is integrally rotatably connected to a housing of a drive motor unit. A plurality of fins axially extends from an inner surface of a bottom portion of the fan boss toward a bottom portion of the housing of the drive motor unit and... | 10/06/2009 |
| 7592722 | Gas-cooled generator A gas-cooled generator has a rotor rotatable about an axis, a stator surrounding the rotor concentrically and a rotating exciter connected to the rotor. The stator, rotor and exciter are arranged along the axis on a common base frame. A first cooler configured to co... | 09/22/2009 |
| 7579724 | Methods and apparatus for using an electrical machine to transport fluids through a pipeline A stator for an electrical machine includes teeth assembled from a plurality of stacked laminations mounted on a cylindrical protective surface thereby forming a plurality of slots. The stator also includes an armature winding assembled within the teeth by inserting... | 08/25/2009 |
| 7576459 | Electric machine with fluid supply control system An electric machine includes a fluid control system that is configured to regulate the flow rate of fluid to the electric machine. The machine includes a sensor that senses a parameter representative of cooling required by the machine. The sensor supplies a sensor s... | 08/18/2009 |
| 7569956 | Automotive tandem alternator having reduced axial length and improved structure for effectively dissipating heat generated by rectifiers According to the invention, a tandem alternator includes a rotary shaft, a first and a second power generation unit arranged in tandem in the axial direction of the rotary shaft, a housing accommodating the power generation units and having a plurality of air holes ... | 08/04/2009 |
| 7557475 | Methods and apparatus for cooling generators A baffle for guiding cooling fluids in a power generator cooled by a cooling fluid and having a flange, a stator, and an end stator has an inclined surface configured to direct a first portion of the cooling fluid flow towards the flange and a second portion of the ... | 07/07/2009 |
| 7550882 | Cooling for an electric motor or generator Improved cooling arrangement for an electric motor or generator including a housing, what is called a “slotless” tubular stator lamination (4), a rotor (2) with permanent magnets and electric windings (25-26) which are provided betwee... | 06/23/2009 |
| 7545061 | Rotating electric machine for vehicles A rotating electric machine for vehicles is capable of improving a cooling performance of switching elements forming an inverter module, and small-sizing the entire rotating electric machine. The rotating electric machine includes: a stator; a rotor, a cooling fan; ... | 06/09/2009 |
| 7541701 | Totally enclosed fan cooled motor A motor assembly comprises a first end frame, a second end frame including at least one air outlet aperture, an air shroud surrounding a stator between the first end frame and the second end frame, the air shroud cooperating with the stator to form at least one air ... | 06/02/2009 |
| 7538458 | Construction and method of an electric motor drive In an electric motor drive, a asynchronous motor, such as drum motor, has a stator (2) mounted on a non-rotatory shaft (1) and has rotatory, like by means of bearings (3), connected rotor (4), is arranged to drive the machine construction... | 05/26/2009 |
| 7479716 | Cooling system for a stator assembly A stator assembly is provided having a generally annular stator core including a plurality of radially inwardly extending stator teeth. A stator wire is wound around each of the plurality of stator teeth to form a plurality of stator coils. Each of the plurality of ... | 01/20/2009 |
