Patent application number | Description | Published |
20120091850 | ROTATING ELECTRIC MACHINE - A rotor slot is asymmetrically shaped with respect to a straight line drawn from the central axis of the rotation of the rotor in a radial direction, and has a slot opening, the circumferential width of which is smaller than that of the rotor slot, at the top of the rotor slot, so that a loss generated in the rotor due to a carrier harmonic component can be reduced and the power factor can be improved, enabling a current generated in an armature winding to be suppressed and thereby improving efficiency in a rated operation. | 04-19-2012 |
20120146336 | PERMANENT MAGNET ROTATING ELECTRICAL MACHINE AND METHOD FOR MANUFACTURING A ROTOR OF THE SAME - A permanent magnet rotating electrical machine comprises a stator with a stator coil applied in a plurality of slots provided in a stator core, a rotor disposed opposite to the stator with a predetermined gap interposed therebetween, the rotor including a permanent magnet embedded in each of magnet-insertion holes provided in a rotor core of the rotor while polarity of the permanent magnet being varied on a pole-by-pole basis, and end plates disposed at ends of the rotor core, in the axial direction thereof, respectively, in which one end plate of the end plates disposed at the ends of the rotor core, in the axial direction thereof, respectively, is also provided with magnet-insertion holes, and each of the magnet-insertion holes provided in the one endplate is filled up with a non-magnetic material, thereby stopping up each of the magnet-insertion holes provided in the end plate. | 06-14-2012 |
20130127172 | Electrical Rotating Machine System or Wind Turbine System - An electrical rotating machine system that can be easily maintained and can provide improved power generation efficiency. The electrical rotating machine system includes:a first electrical rotating machine having a first stator that has first stator windings, and a first rotor that has first rotor windings and is disposed on the internal diameter side of the first stator so as to have a gap between the internal diameter side of the first stator and the first rotor itself; a second electrical rotating machine having a second stator that has second stator windings, and a second rotor that has second rotor windings and is disposed on the internal diameter side of the second stator so as to have a gap between the internal diameter side of the second stator and the second rotor itself; and at least one power converter that is electrically connected to the first rotor windings and the second rotor windings, and configured to rotate when the first rotor rotates. | 05-23-2013 |
20140001912 | ELECTRICAL ROTATING MACHINE | 01-02-2014 |
20140028146 | Induction Motor and Railway Vehicle Using Induction Motor - An induction motor includes: a stator and a rotor arranged so as to face the stator via a void, the rotor including conductor bars in a plurality of slots formed by a plurality of teeth arranged so as to extend in the circumferential direction of a rotatably held rotor core, wherein the circumferential width of distal end portions of the slots on the radially outside of the rotor core are narrowed by distal end portion of the teeth on the radially outside of the rotor core, and the teeth are each formed with a projection protruding in an arcuate shape from the distal end of the tooth on the radially outside of the rotor core toward the conductor bar in each of the slots. | 01-30-2014 |
Patent application number | Description | Published |
20100038109 | Joint Structure of Electric Wire, Stator of Rotary Electric Machine, Method for Manufacturing the Same - When electric wires (joint conductors) are disposed adjacent each other in a peeled state of coatings, a gap corresponding to the total thickness of both conductors' insulating films as skin layers is formed between end joined face portions of the conductors. The gap becomes larger because the conductors are tapered. Therefore, the adhesion between both conductors is impaired, with a consequent fear of occurrence of joining imperfection. In opposed joined face portions of electric wires (joint conductors), the conductors are deformed from the tips of their axes to the joined face side in such a manner that exposed portions at the tips of the conductors and insulating film faces located in the vicinity thereof are flush with each other or the exposed portions are projected. The gap formed between the electric wires (joint conductors) can be diminished, whereby the reliability of connection is improved and it becomes easier to perform the work of joint conductors, with the result that the productivity of a stator of a rotary electric machine such as an AC generator for a vehicle could be improved. | 02-18-2010 |
20120274171 | Rotating Electric Machine - An object is to provide a rotating electric machine offering a high output and high efficiency by balancing inductance of each phase even if a stator is used in which stator windings of different phases are disposed in a slot of a stator core in a three-phase winding. A stator | 11-01-2012 |
20140354095 | Rotating Electrical Machine - Provided is a high-output, high-efficiency, and high-quality rotating electrical machine that is excellent in productivity, can prevent interference in coil end portions of stator coils, and has a stator with improved coolability. A stator coil | 12-04-2014 |
20150028704 | Rotating Electrical Machine and Manufacturing Method Therefor - A high-output, high-efficiency and high-quality rotating electrical machine is provided which has a stator shaped to avoid interference between coil end portions even in cases where the coil space factor of stator coils is raised and the stator coils are formed by winding continuous wires, each having a rectangular cross-section, for high productivity. | 01-29-2015 |
Patent application number | Description | Published |
20100181478 | CHARGED PARTICLE BEAM ADJUSTING METHOD AND CHARGED PARTICLE BEAM APPARATUS - In an apparatus for obtaining an image by irradiating a charged particle beam on a specimen, a condition of the beam conditioned differently from vertical incidence as in the case of the beam being tilted is required to be adjusted. To this end, the apparatus has a controller for automatically controlling a stigmator, an objective lens and a deflector such that astigmatism is corrected, focus is adjusted and view filed shift is corrected. The controller has a selector for inhibiting at least one of the astigmatism correction, focus adjustment and FOV shift correction from being executed. | 07-22-2010 |
20120305764 | METHOD OF DETERMINING THE CONCAVITY AND CONVEXITY ON SAMPLE SURFACE, AND CHARGED PARTICLE BEAM APPARATUS - A method and apparatus suitable for determining the concavity and convexity of line and space patterns formed on a sample. A profile is formed based on a charged-particle beam scan, the profile having a peak. When one foot portion of the peak converges more gradually than the other foot portion, a portion of the sample corresponding to the one foot portion is determined to be a convex portion. Alternatively, when one foot portion of the peak converges more steeply than the other foot portion, a portion of the sample corresponding to the one foot portion is determined to be a concave portion. | 12-06-2012 |
20130216121 | PATTERN MEASURING METHOD, PATTERN MEASURING APPARATUS, AND PROGRAM USING SAME - In measuring pattern with large process fluctuation, correct measurement cannot be carried out if noises, such as pattern that is not the subject to be measured, and dirt, are present in periphery of pattern to be measured in previously registered measurement region. Among the image data of sample, predetermined region aligned by pattern matching is set as region not to be measured that is excluded from subjects of pattern measurement. For example, in measuring pattern with large process fluctuation, only region including pattern with small process fluctuation is used in pattern matching, while in measuring the pattern, predetermined region, which was used in pattern matching and aligned, is set as region not to be measured. Stable pattern measurement can be easily carried out with respect to pattern with large process fluctuation, without being affected by region where measurement region and region not to be measured overlap with each other. | 08-22-2013 |