| Patent application number | Description | Published |
|---|
| 20090160284 | ELECTRICAL ROTATION MACHINE AND A WIND TURBINE SYSTEM - An electric rotation machine for windmill power generation equipped with a stator slot structure having distributed windings and a rotor pole structure having permanent magnets, wherein the number of slots per pole per phase (Nspp) is undividable by 3 times P (where P is the number of poles), and pole width rate Pw obtained by dividing pole piece width Tp by pole pitch Tr at the outermost diameters of the adjoining poles of the rotor is satisfied any of Pw≦0.6, 0.67≦Pw≦0.71, and 0.78≦Pw. The distortion factors of induced voltages in a permanent magnet type electrical rotation machine, particularly for windmill power generation, can be reduced. | 06-25-2009 |
| 20090177331 | Energy-Saving Service Offering Method And Apparatus Therefor - An energy saving support service offering method includes introducing an inverter at least in a load facility having a motor with an expense of an energy saving support service provider and/or its cooperatives, and performing an electric power saving operation by an inverter control operation. | 07-09-2009 |
| 20100026008 | SYNCHRONOUS GENERATOR AND SYNCHRONOUS GENERATOR SYSTEM - A synchronous generator | 02-04-2010 |
| 20100026145 | SEALED TYPE ELECTRIC ROTATING MACHINE - In a sealed type electric rotating machine, in which a cooling medium inflows from both end sides of a rotating shaft of a claw-pole type rotor, a cooling medium having passed through a heat exchanging part divides into one on an exhaust side and one on an intake air side to be used again for cooling of the claw-pole type rotor and a stator. On the exhaust side, a cooling medium being high in temperature as compared with that on the intake air side performs cooling, and the rotor and the stator are made higher in temperature on the exhaust side than on the intake air side. In order to level temperature profiles of the claw-pole type rotor and the stator in an axial direction, a partition, which cuts off an axial duct, is provided toward the exhaust side relative to a center in the axial direction. | 02-04-2010 |
| 20100194221 | PERMANENT MAGNET ELECTRICAL ROTATING MACHINE, WIND POWER GENERATING SYSTEM, AND A METHOD OF MAGNETIZING A PERMANENT MAGNET - A permanent magnet electrical rotating machine having a permanent magnet rotor and a stator, wherein: | 08-05-2010 |
