Entries |
Document | Title | Date |
20120181892 | FLUX CANCELLATION IN A PERMANENT MAGNET GENERATOR - A permanent magnet comprises a primary winding, a secondary winding, a permanent magnet, an output terminal for connection to an external load, and a switching mechanism with two modes. In a first mode of the switching mechanism, the primary winding is connected between neutral and the output terminal, and the varying magnetic flux from the permanent magnet induces a nonzero voltage at the output terminal. In the second mode, the secondary winding provides a return path to neutral for the primary winding, thereby providing negligible voltage and current at the output terminal and substantially canceling change in magnetic flux from the permanent magnet. | 07-19-2012 |
20120200192 | THREE - PHASE ASYNCHRONOUS ENGINE (VARIANTS) - The invention concerns the electric asynchronous engines including a rotor as a flat disc, and a stator, which is coaxial to the rotor, and is installed with a working backlash relative to the rotor's disk. The stator includes three laminated packages of cores with phase coils, which are situated around the shaft of the motor under 120° angle, one in relation to other. The cores' packages are enclosed between the first and the second flat base plates, which are executed from nonconductive material, and the planes of the base plates are perpendicular to the axis of the shaft. The cores are executed as rectilinear laminated packages, and their axes are parallel to the shaft's axis. The second base plate is identical to the first one, and the butt-ends of the other side of the cores' packages are fixed in it. The invention is presented in three variants, where different fulfillments of the motor are shown: with a sectioned stator, with a sectioned rotor or with the stator and the rotor both sectioned. | 08-09-2012 |
20130200744 | BRUSHLESS DC MOTOR AND METHOD FOR CONTROLLING THE SAME - This brushless DC motor ( | 08-08-2013 |
20140028144 | JOINT AND JOINTING METHOD IN A PERMANENT MAGNET SYNCHRONOUS MACHINE - The invention relates to a joint between a copper short-circuiting ring ( | 01-30-2014 |
20140139066 | ROTARY ELECTRIC APPARATUS AND ROTOR - A rotary electric apparatus having a stator and a rotor is provided. The rotor includes a rotor core provided with slots extending in an axial direction of the rotor core, and rotor bars arranged in the slots, respectively. The slot and the rotor bar include, in a transverse cross section which is cut perpendicular to a rotation shaft of the rotor, a plurality of convex portions or a plurality of concave portions in at least one of both end faces in a circumferential direction, respectively. The rotor core may further include an outer edge portion extending in the circumferential direction so that it exposes a radially outer portion of the slot and covers the rest. | 05-22-2014 |
20140217850 | ROTOR OF SUPERCONDUCTING ROTATING MACHINES - A rotor of superconducting rotating machines according to the present invention comprises: a yoke provided with receiving sections which are consecutively formed on the outer peripheral surface thereof; bobbins received in each of the receiving sections of the yoke; and a superconducting coil coupled with the bobbins, wherein interval-maintaining members are formed of high tenacity fibers and coupled between the yoke and the bobbins such that the bobbins are supported at an interval from the inner surfaces of the receiving sections to the bottom surfaces thereof. | 08-07-2014 |
20140285057 | RELUCTANCE MOTOR - A reluctance motor has: a stator provided with drive coils to which multiphase drive currents are inputted; and a rotor provided with a plurality of salient poles which receive primary rotating force when magnetic fluxes generated in the drive coils are interlinked with the rotor, and the rotor has: inductor pole coils which are placed on magnetic paths on which spatial harmonic components superimposed on the magnetic fluxes generated in the drive coils are interlinked with the rotor side so that induced currents can be generated in the inductor pole coils due to the spatial harmonic components of the magnetic fluxes; rectifier elements which rectify the induced currents generated in the inductor pole coils; and electromagnet coils as defined herein, and the inductor pole coils and the electromagnet coils do not serve for each other's purposes but are placed on the rotor individually. | 09-25-2014 |
20220140711 | ELECTROMAGNETIC MACHINE USING MAGNETIC FIELD BINDING OF MULTIPLE MULTI-PHASE WINDING WIRES - The present invention relates to an electromagnetic machine comprising: rotation shaft; a stator comprising a multi-phase winding wire; a mover (rotor | 05-05-2022 |