| MAGNOMATICS LIMITED Patent applications |
| Patent application number | Title | Published |
|---|
| 20120094555 | ELECTRIC MARINE PROPULSION DEVICE WITH INTEGRAL MAGNETIC GEARING - A propulsion device for a marine vessel, the propulsion device comprising an electrical machine with integral magnetic gearing, which comprises three members, namely a first or inner rotor comprising a first plurality of permanent magnets, a second rotor in the form of a plurality of ferromagnetic pole pieces, and a stator which is associated with a plurality of 3-phase windings and to the periphery of which a plurality of second permanent magnets are fixed. The magnetic pole piece rotor is connected to a drive shaft provided with a propulsion means for providing propulsion to the marine vessel. The first or inner rotor is free to rotate about the drive shaft. The pole pieces of the second rotor are arranged to magnetically couple the permanent magnets of the first or inner rotor to the second permanent magnets on the stator. | 04-19-2012 |
| 20110163623 | ELECTRICAL MACHINES - Embodiments provide an electrical machine, comprising: first and second moveable elements arranged to interact in a magnetically geared manner via a magnetic field created, at least in part, by a first electrical winding arrangement associated with the first moveable element; and a second electrical winding arrangement which is arranged to interact magnetically with a fundamental harmonic of a magnetic field created by the first electric winding arrangement associated with the first moveable element. | 07-07-2011 |
| 20110133594 | MAGNETIC POLE-PIECE STRUCTURE - In order to provide a magnetic pole-piece having good immunity to eddy currents whilst providing a high torque rating there is provided a magnetic pole-piece ( | 06-09-2011 |
| 20110127869 | MAGNETIC GEAR - Embodiments of the present invention relate to magnetic gears comprising first and second moveable members arranged to interact in a magnetically geared manner via a first electrical winding arrangement arranged to generate, at least in part, a first magnetic flux having a first number of pole-pairs, and one or more pole-pieces arranged to modulate the first magnetic flux to interact with a second magnetic flux having a second number of pole-pairs, wherein the first number of pole-pairs is less than the second number of pole-pairs. | 06-02-2011 |
| 20110121672 | MAGNETIC POLE-PIECE SUPPORT - A pole piece support comprising a frame having a spaced array of non-magnetic support structures, wherein disposed between at least a pair of adjacent non-magnetic support structures is a magnetic pole piece supported along at least a portion of its body by the adjacent non-magnetic support structures. | 05-26-2011 |
| 20110057456 | DRIVES FOR SEALED SYSTEMS - A drive for a sealed magnetically geared system comprising a housing defining a sealed chamber, a driving member including a first set of magnets, and a driven member comprising a second set of magnets, one of the members being located inside the chamber, wherein the first and second sets of magnets are arranged to produce different numbers of magnetic poles, and the housing includes a wall extending between the members and supporting a plurality of pole pieces which are arranged to modulate the magnetic field acting between the magnets. | 03-10-2011 |
| 20110042965 | WIND TURBINE POWER TRAIN - A wind turbine power train comprising a turbine rotor stage and drive shaft; an electric generator stage connected to the turbine rotor stage and a power electronic converter stage connected to the electric generator stage; wherein the electric generator stage comprises an electrical machine with integral magnetic gearing, an output of the electric generator stage being AC electrical power. | 02-24-2011 |
| 20110037333 | VARIABLE MAGNETIC GEARS - A magnetic gear comprising: a first movable member having a first set of magnetic poles, a second movable member having a second set of magnetic poles, and a third movable member having a set of pole pieces; wherein the first and second members have magnetic poles at different spacings and the pole pieces are arranged to modulate the magnetic field acting between the magnetic poles, and control means arranged to control rotation of one of the members so as to vary the gear ratio between the other two members. | 02-17-2011 |
| 20110012458 | MAGNETIC DRIVE SYSTEMS - A magnetic drive system comprising three members, a first and second of which form an input member and an output member each arranged to rotate relative to the third member, wherein two of the members have respective sets of permanent magnets, the two sets having different numbers of magnetic poles, and the other of the members comprises a cylindrical body having a plurality of pole pieces embedded therein, the pole pieces being arranged to modulate the magnetic field acting between the magnets, and wherein one of the pole pieces is of varying radial thickness. | 01-20-2011 |
| 20100283345 | ELECTRICAL MACHINES - Embodiments provide an electrical machine bearing first and second pluralities of permanent magnets having different number of pole pairs, a plurality of pole-pieces that enable the magnetic interaction between the pluralities of permanent magnets, and winding that couples with the first/fundamental harmonic of the first plurality of permanent magnets to enable electromechanical energy conversion. | 11-11-2010 |
| 20100207472 | MAGNETIC GEAR - Embodiments of the present invention relate to magnetic gears comprising a pair of rotors magnetically coupled in a geared manner via a magnetic space harmonic generated as a consequence of varying an air gap between sets of permanent magnets. | 08-19-2010 |
