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| Number | Title | Issue Date |
| 8134260 | Electric motor with heat pipes A motor including a frame that defines a motor portion and an adjacent cooling portion, and a plurality of heat pipes disposed within and fully enclosed by the motor frame. Each heat pipe has an evaporator end disposed within the portion of the frame that defines th... | 03/13/2012 |
| 7888830 | Dynamo apparatus for boat A casing (31) is provided around a power transmission shaft (3a) interposed between a crankshaft (2a) of an engine (2) and a power transmission device (3). A dynamo apparatus (10) and a cooling fan (23) ... | 02/15/2011 |
| 7732954 | Electrical machine An electrical machine has an armature with armature grooves for accommodating an armature winding and which is non-rotatably supported on an armature shaft, wherein at least one heat-conducting element is provided in the region of at least one end face of the armatu... | 06/08/2010 |
| 7646118 | Portable power working machine A portable power working machine includes a drive unit disposed in a motor housing connected to a proximal end of an operating arm. The drive unit rotates a cutting blade at a distal end of the operating arm. The motor housing has an inlet and an outlet for cooling ... | 01/12/2010 |
| 7582994 | Electric actuator An electric actuator comprised of an electric motor and a wave gear speed reducer connected to the electric motor efficiently air-cools the electric motor and a wave generator of the speed reducer and obviates the need for increasing the axial length of the actuator... | 09/01/2009 |
| 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 |
| 7372180 | Electric motor with an air duct An electric motor includes a stator (3) secured in the motor housing (2), a rotatable rotor (4), a fan impeller (5) arranged on the rotor (4), and an annular air duct (6) arranged between the fan impeller (5) and the ... | 05/13/2008 |
| 7365471 | Internal cooling fan with a non-repeating blade configuration An internal cooling fan assembly for use with a claw-pole segment of a rotor assembly is provided that maximizes air flow while providing a reduced sound signature. The fan assembly includes a base portion that contacts the claw-pole segment when the fan assembly is... | 04/29/2008 |
| 7309935 | Fan impeller for electrical machines The present invention relates to a fan wheel (11) for electrical machines, in particular for alternators of motor vehicles, with a fan disk (10) that, on its axially outwardly directed end face, has a number of fan blades (13, 18) distributed ar... | 12/18/2007 |
| 7271515 | Gas-cooled electrical machine with pressure charging A gas-cooled electric machine includes a generator housing, a rotor shaft, at least one axial fan disposed on the rotor shaft inside the generator housing and having a hub, and a pressure boosting apparatus associated with the axial fan and configured to raise an ab... | 09/18/2007 |
| 7196438 | Resilient isolation members and related methods of reducing acoustic noise and/or structural vibration in an electric machine A resilient isolation member is configured for use with an electric machine having a housing, a stator within the housing, and an end shield. The resilient isolation member includes first and second end portions, a sidewall extending between the first and second end... | 03/27/2007 |
| 7193342 | Apparatus for cooling of electrical devices Electrical devices such as motors and generators create heat as they operate. This can lead to lower performance and life. Therefore, it is important to provide cooling for such devices. This is particularly true in heavy duty applications such as earthmoving or oth... | 03/20/2007 |
| 7193344 | Wiring structure of hybrid vehicle motor A wiring structure for a hybrid vehicle motor 3 arranged between an internal combustion engine 1 and a transmission 2 comprises; an electrically conductive member 6 which performs collecting and distributing electricity for a coil 29 | 03/20/2007 |
| 7183677 | Automotive alternator having rectifier mounted on heatsink plate with cooling fins A rotor and a stator are contained in a housing composed of front and rear frames, and a rectifier is mounted on the rear frame and covered with a rear cover having axial and radial openings. A minus heatsink plate having cooling fins extending in the axial directio... | 02/27/2007 |
| 7171997 | Portable electric router having radial fan A compact and light-weight portable electric router produced at a low cost and capable of providing high cutting efficiency with low noise. A radial fan includes a cylindrical hub functioning as an attachment portion to a motor shaft, a plurality of fan blades havin... | 02/06/2007 |
| 7166942 | Magneto-generator A magneto-generator includes: a plurality of magnets disposed being bonded to an inner circumferential surface of a flywheel; and a magneto coil that is disposed in the flywheel being opposed to the magnets and coaxial with the flywheel, and that generates an electr... | 01/23/2007 |
| 7160086 | Rotary machine cooling system A rotary machine cooling system is provided that includes a housing having an inlet and outlet. A rotor supported in the housing for rotation about an axis with the rotor including an outer surface. A stator is disposed within the housing about the rotor having an i... | 01/09/2007 |
| 7157818 | Low noise ventilation system for electric motor An electric motor having a fan and baffle for directing a flow of cooling air through the motor while minimizing generation of noise. The fan has blades which are curved in a direction opposite to the direction of rotation of the fan. The blades are spaced from a hu... | 01/02/2007 |
| 7148595 | Vehicular alternator A vehicular alternator 1 is disclosed as having a stator 2 on which an armature winding 21 is wound, a rotor 3 rotatably disposed in the stator, cooling fans 32, 33 for creating cooling winds during rotation of the rotor, a front h... | 12/12/2006 |
| 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 |
| 7137263 | Low profile condenser motor An air conditioning (A/C) system includes a condenser and an electric motor that drives a fan to induce air flow through the condenser. The electric motor includes an internal stator assembly and an external rotor assembly rotatable about the internal stator assembl... | 11/21/2006 |
| 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 |
| 7124869 | Multi-plate clutch, particularly for a double clutch transmission A multi-plate clutch, particularly for a dual clutch transmission, has at least one clutch housing alternately holds externally and internally toothed plate disks, a hub arranged at the end face on the clutch housing. The hub has a central opening for receiving a ge... | 10/24/2006 |
| 7121798 | Radial fan wheel for transporting cooling air for an electric machine In a radial fan wheel for supplying cooling air for an electrical machine, with a number of fan blades (16) attached along the circumference of the fan wheel (10) that have arc-shaped blade ends (18), which, at their radially inner edge, enclose... | 10/17/2006 |
| 7105967 | Heat dissipating device with a combination bearing assembly having magnetic bearing rings and a sleeve bearing A magnetic bearing assembly having a magnetic portion for simultaneously generating axially and radially magnetic forces and a bearing portion for supporting a shaft upon its rotation is disclosed. The magnetic bearing assembly according to the present invention can... | 09/12/2006 |
| 7071587 | Integrated cooler for electronic devices An integrated cooler for electronic devices comprises a heat exchange element, a heat transferring element and a blower with an electric drive. The heat exchange element comprises a base and heat exchanging means. The electronic device directly thermally connected w... | 07/04/2006 |
| 7067947 | Automotive alternator having rectifier mounted on heatsink plate with cooling fins A rotor and a stator are contained in a housing composed of front and rear frames, and a rectifier is mounted on the rear frame and covered with a rear cover having axial and radial openings. A minus heatsink plate having cooling fins extending in the axial directio... | 06/27/2006 |
| 7057315 | Automotive alternator having cooling fan coupled to rotor shaft An alternator for use in an automobile includes a stator supported between a front housing and a rear housing, and a rotor connected to a rotor shaft and rotatably supported inside the stator. A cooling fan is positioned at an end of a pole core of the rotor. The co... | 06/06/2006 |
| 7057316 | Downhole torque generator A torque-generating apparatus includes a first assembly (10, 25) including a generally cylindrical member of magnetically soft material and having a longitudinal axis and a second assembly (2) arranged coaxially within the first assembly and including ... | 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 |
| 7034428 | Multi-set rectangular copper hairpin windings for electric machines An electric machine having multi-set rectangular copper hairpin windings comprises a stator having a plurality of partially closed stator slots. A first winding set and a second winding set are positioned in the stator slots. The first winding set and the second win... | 04/25/2006 |
| 7015606 | Heat-dissipated mechanism for outer-rotor type brushless DC fan motor An outer-rotor type brushless fan motor is provided, wherein the outer edge of a stator of the outer-rotor type brushless fan motor is surrounded in the cup-shaped outer periphery of a rotor case of a rotor thereof, and the rotor is rotated with respect to the stato... | 03/21/2006 |
| 7015616 | System and method for providing coil retention in the rotor windings of a high speed generator A coil retention system for a rotor of a high speed electrical generator, such as an aircraft generator, that uses compliant material to fill variable dimension voids and/or gaps in the coils wound around the rotor of an electrical machine. During processing of the ... | 03/21/2006 |
| 7009316 | Electric rotary machine In the stator of a electric rotary machine in which heat conductive insulation resin is filled at the end portions of a stator coil, the material of a stator core, the stator coil, the heat conductive insulation resin and a frame is selected such that a linear therm... | 03/07/2006 |
| 6955530 | Fan motor bracket and baffle assembly A fan/motor assembly having an integrated brush support and bearing retainer is disclosed. The fan/motor assembly includes a rotatable shaft, a working air fan coupled to the shaft, and a motor bracket and baffle assembly interposed between the working air fan and t... | 10/18/2005 |
| 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 |
| 6933634 | Fan baffle An improved cooling arrangement for an electric motor in a pump assembly, including a resilient fan baffle having a planar main surface and a pair of wings extending perpendicularly out from the main surface to direct airflow away from the motor when the fan baffle ... | 08/23/2005 |
| 6930426 | Alternator stator having a multiple filar construction to improve convective cooling A stator for a dynamoelectric machine improves the cooling of the stator winding without increasing the size of the stator winding or the entire stator. The stator is of a unique construction wherein the size, and more specifically the cross sectional area or volume... | 08/16/2005 |
