Tounosu
Shigeki Tounosu, Hitachi JP
Patent application number | Description | Published |
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20090058205 | ROTATING ELECTRIC MACHINE - A rotating electric machine wherein sub slots serving as cooling fluid ducts in the axial direction are provided at the bottoms of the coil slots formed in the rotor, radial cooling fluid ducts are formed through the field coil of the rotor in the radial direction of the rotor and juxtaposed in the axial direction of the rotor, so as to communicate the sub slots with the air gap, and radial cooling fluid ducts are formed through the stator in the radial direction of the stator and juxtaposed in the axial direction of the rotor, corresponding in position to the radial cooling fluid ducts in the rotor, so as to communicate the inner periphery of the stator with the outer periphery of the stator. | 03-05-2009 |
20090189721 | SUPERCONDUCTING MAGNET AND MAGNETIC RESONANCE IMAGING APPARATUS - In a superconducting magnet, including a vacuum vessel, a coil vessel inside the vacuum vessel, and a superconducting coil inside the coil vessel for generating a magnetic field, has a magnetic member, disposed inside the vacuum vessel, supported with thermal insulation, for compensating the magnetic field; a heat exchange device disposed outside the vacuum vessel for supplying to or absorbing heat from the vacuum vessel; and thermal conducting members thermally connecting the heat exchange device via the vacuum vessel to the magnetic member. An MRI including the superconducting magnet is also disclosed. | 07-30-2009 |
Shigeki Tounosu, Hitachi-Shi JP
Patent application number | Description | Published |
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20130300226 | ROTATING ELECTRIC MACHINE - A rotating electric machine includes a rotor, a stator, formed by stacking perforated-disk-shape stator cores, surrounding the rotor, arranged with a gap from the rotor, a first stator cooling duct to allow the cooling gas to flow from an inner side toward outer side of the stator, a second stator cooling duct to allow the cooling gas to flow from an outer side to an inner side of the stator, a plurality of support plates for supporting the stator and providing sectioning between the first and second flow paths, and a flow control part configured to suppress a flow of the cooling gas passing through the gap part where the outer end part of the stator core and the inner end part of the support plate face each other. | 11-14-2013 |
20140042842 | Axial Gap Rotating-Electric Machine - A channel connecting a first opening formed on one side surface of a rotor and a second opening formed on the other side surface of the rotor is provided, and a first distance from a rotating shaft to the center of the first opening and a second distance from the rotating shaft to the center of the second opening are differentiated. A differential pressure is generated between the first opening and the second opening provided in the rotor by the differentiating the distances from the center of the rotating shaft to the first opening and the second opening, a flow of air is generated by the differential pressure from one surface or the other surface of the rotor to the other surface or the one surface, whereby the stator in proximity to the rotor may be cooled. | 02-13-2014 |
Shigeki Tounosu, Yokohama JP
Patent application number | Description | Published |
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20150123508 | ROTATING MACHINERY - Rotating machinery of the invention includes a 2n-pole rotor, 72n slots, and three-phase armature windings (n≧1). Each of the slots houses a top coil on an inner radius side of the slots and a bottom coil on an outer radius side thereof. Each of the armature windings is formed by connecting the top and bottom coils and has 2n phase belts per phase. Each of the phase belts includes a first parallel winding and a second parallel winding. The top and bottom coils are formed by arranging the first and second parallel windings in a predefined order when a circumferential mean position of all top coils and bottom coils in each of the phase belts is defined as a phase belt center and an arrangement of the first and second parallel windings in at least one phase belt is viewed in an order of proximity to the phase belt center. | 05-07-2015 |