| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 310103000 | Magnetic field type | 74 |
| 20080211335 | Accessory drive system with rd motor - [Object] To provide an accessory drive system which is capable of achieving downsizing of the system, reduction of manufacturing costs thereof, and enhancement of its marketability. | 09-04-2008 |
| 20080290750 | Drive Motor System - A motor drive system is provided. The system includes a torque converter for receiving a rotational motion from a source and producing a rotational output, the torque converter having a first body rotatable about a first axis, a plurality of first magnets mounted to the first body, a second body rotatable about a second axis, and a plurality of second magnets mounted to the second body. The system also includes a generator system coupled to the rotational output of the torque converter and producing at least one electrical output; at least one motor drive coupled to an electrical output of the generator system; and an output system coupled to the motor drive. The first magnets are magnetically coupled to the second magnets, and the second body rotates as a result of the magnetic coupling and produces the rotational output. | 11-27-2008 |
| 20080309186 | MAGNETIC BELT AND ROLLER SYSTEM - A belt and roller system comprising a roller having a permanent magnet sandwiched in between a pair of temporarily magnetic disks with the magnetism of the disks induced by the permanent magnet. For example, each temporarily magnetic disk may be steel. Each pole of the permanent magnet is disposed adjacent to a pole of one of the temporarily magnetic disks resulting in a magnetic attraction to a disk at each pole of the permanent magnet. The opposing magnetic poles of the disks form a magnetic flux circuit by which a temporarily magnetic belt, such as a steel belt is guidable to prevent or reduce deviation which it may have from its roller path. Additional permanent magnetic rollers, as described above, or other rollers known in the art may be combined with the magnetic roller of the present invention to form a gear train about which the belt rotates. | 12-18-2008 |
| 20090284091 | Magnetic Coupling with Hysteresis, Particularly for Winding/Unwinding Devices - A magnetic coupler with hysteresis ( | 11-19-2009 |
| 20100090552 | Magnetic Gearbox Arrangement - Magnetic gearboxes comprising an inner rotor and an outer rotor are known with pole members between them. However, these gearbox arrangements generally have a fixed gear ratio between the rotors. By provision of pole members with coils between them and associated switches to adjust the magnetic flux modulation capacity between the rotors it is possible to create open circuit, closed circuit and variable impedance configurations which will relatively passively adjust the magnetic flux modulation capacity or by presenting a voltage to the coils or drawing a voltage from the coils to more actively adjust the magnetic flux modulation capacity across the arrangement. In such circumstances a wider range of gear ratios is achieved as well as the capability with regard to localised electrical power generation through the gearbox arrangement or electro magnetic braking achieved upon the gear box as required. | 04-15-2010 |
| 20100156220 | INNER DRIVE FOR MAGNETIC DRIVE PUMP - An inner drive for a magnetic drive pump includes a magnet supported on a yoke. The inner drive is driven about an axis to pump a corrosive process fluid. The magnet and yoke are fully encapsulated during the molding process to completely surround the magnet and yoke in a protective plastic shell. A sleeve is arranged radially outwardly of the magnet to provide further protection. Backing rings are arranged on either side of the magnet. A bonding material joins the plastic shell to the backing rings and sleeve to prevent a space from forming beneath the plastic shell that would become filled with the process fluid once it has permeated the plastic shell. A protective coating is arranged on at least a portion of the magnet to further insulate the magnet from the process fluid. | 06-24-2010 |
| 20100176674 | Gear Trains Employing Magnetic Coupling - A first movable element includes a first Halbach array permanent magnet array. A second movable element placed in operable proximity to said first Halbach array includes a second Halbach array permanent magnet array. The first Halbach array is configured to transmit torque upon movement to the second movable element by magnetic force, wherein the torque is transferred with no physical contact occurring between the first movable element and the second movable element. | 07-15-2010 |
| 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 |
| 20100237731 | ORBITAL MAGNETIC SPEED CHANGE - The present invention refers to a speed change mechanism with magnetic torque transmission using two stages of epicyclic transmission, with four bases, containing each base at least one magnetic poles ring, the first stage has one base with orbital motion and one base reciprocal to the housing concentric with the two shafts, the second stage has one base with rotational motion concentric with the lower rotation shaft and one base with orbital motion reciprocal to the orbital motion base of the first stage, the torque transmission of each stage is done by the magnetic poles rings of each base, and the transmission ratio change is done by changing the pair of magnetic poles rings that are transmitting torque. | 09-23-2010 |
| 20100237732 | MAGNETIC DRIVE ARRANGEMENT - A magnetic drive arrangement includes a multitude of permanent magnets ( | 09-23-2010 |
| 20100259121 | POWER TRANSMISSION DEVICE - A power transmission device for transmitting a driving force from a vehicle-mounted driving source to a vehicle-mounted rotary device includes a driving rotor mechanically coupled to the vehicle-mounted driving source via a belt, and a driven rotor disposed coaxially with the driving rotor and mechanically coupled to a drive shaft of the vehicle-mounted rotary device. Furthermore, the power transmission device is provided with a magnetic join portion disposed in at least one of the driving rotor and the driven rotor, and the magnetic join portion is adapted to transmit a rotary driving force from the driving rotor to the driven rotor by a magnetic force, while keeping a predetermined clearance between the driving rotor and the driven rotor. Thus, in the power transmission device, a natural frequency can be made much lower than a frequency of vibration generated from the vehicle-mounted rotary device in idling of a vehicle. | 10-14-2010 |
| 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 |
| 20110031837 | MAGNETIC COUPLING DEVICE - A reduced-size magnetic coupling device includes a first magnet group having a plurality of first magnets arranged on an interaction surface at equal intervals in the direction of the circumference about the rotation axis; a second magnet group having a plurality of second magnets arranged on an interaction surface at equal intervals in the direction of the circumference about the rotation axis and in positions in the vicinity of the rotation axis; and a third magnet group having a plurality of third magnets that are arranged at equal intervals in the circumferential direction about the rotation axis and in positions outward with respect to the second magnets. The third magnets have an area approximately equal to that of the second magnets. Each third magnet has a magnetic pole different from that of the second magnet that is positioned between the third magnet and the rotation axis. | 02-10-2011 |
| 20110109182 | Magnetic transmission - A magnetic transmission is provided for increasing or decreasing rotational speed as any transmission or reducer including those for cars and trucks. Since this transmission does not require oil, it will eliminate the need for a separate oil cooling system which is especially beneficial for electric cars, also design useful as an automatic automobile transmission or more generally as a momentum transfer device. | 05-12-2011 |
| 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 |
| 20110121673 | MAGNETIC GEAR ARRANGEMENT - A magnetic gear arrangement is provided having a first gear member that generates a first magnetic field and a second gear member that generates a second magnetic field. A plurality of interpoles are disposed between the two gear members for coupling the first and second magnetic fields to control a gear ratio between the gear members. At least one interpole has wiring associated with it that can be activated to alter the magnetic flux at the interpole, so as to vary the coupling between the first and second magnetic fields. The wiring is electrically connected to an electronic filter, which modifies the current passing through the wiring, so as to modify the influence of the wiring on the magnetic flux at the interpole. | 05-26-2011 |
| 20110121674 | MAGNETIC GEAR ARRANGEMENT - A magnetic gear arrangement, having a first gear member for generating a first magnetic field and a second gear member for generating a second magnetic field. An interpole member is provided between the first and second gear members for coupling the two magnetic fields and controlling the gear ratio between the two gear members. The interpole member includes a unitary body of magnetisable material and associated control wiring, and is arranged such that when current is passed through the wiring, space regions of the unitary body are magnetised by an electrically-induced magnetic field. Discrete interpoles, the number and spacing of which define the gear ratio, are then formed in the unitary body between adjacent magnetised regions. | 05-26-2011 |
| 20110156518 | MAGNETIC GEAR ARRANGEMENT - A magnetic gear arrangement is provided having a magnetically active gear member that generates a first magnetic field, which is modulated by interpoles. The modulated magnetic field generates magnetic poles on a magnetically passive gear member, and these poles form a second magnetic field. The material of the passive gear member is sufficiently magnetically hard that the first and second magnetic fields interact to couple the motion of the active and passive gear members according to a given gear ratio. | 06-30-2011 |
| 20110215667 | MAGNETIC TRANSMISSION ASSEMBLY - A magnetic transmission assembly is adapted to integration with a motor or generator. The magnetic transmission assembly includes a rotor, a stator, and a magnetically conductive element. The rotor and the stator are sleeved coaxially and respectively have R and ST | 09-08-2011 |
| 20110266902 | Inherently torque limiting magnetically-coupled wheels - An apparatus having at least one rotatable driven object having an edge on which are disposed a series of adjacent magnets of alternating polarity and a driving object rotatable by an external motor torque and having a series of adjacent magnets of alternating polarity on a magnet supporting surface. The magnet supporting surface of the driving object is rotatable through a common region approximately centered about the point of closest approach to the magnet supporting edge of the driven object for sequentially placing magnets of the driving object in the region enveloping the effective interactive range between the two objects. The fields of magnets of opposite polarity of the driving object interact with the fields of the magnets on the driving object to effect rotation of the driven object. Disclosed are structures for torque limiting wheels, magnetic gear trains, reduction gears and ball joints, and propulsion systems for watercraft and aircraft. | 11-03-2011 |
| 20120032545 | MAGNETIC-CONTROLLED ACTUATOR WITH AUTO-LOCKING FUNCTION FOR JOINTS OF MANIPULATION ARM - A magnetic-controlled actuator ( | 02-09-2012 |
| 20120068565 | Thermally decoupled bearing arrangement - The invention relates to a bearing arrangement for supporting a shaft ( | 03-22-2012 |
| 20120098374 | VARIABLE-SPEED MAGNETIC COUPLING AND METHOD FOR CONTROL - An apparatus includes a first rotor operatively connected to an output shaft and holding a first array of pole pieces; a second rotor operatively connected to an input shaft coaxially with the first rotor and holding a second array of pole pieces; and an array of field windings disposed coaxially with the first and second rotors. The array of field windings being arranged to interact magnetically with a harmonic frequency of the magnetic field of the first or second array of pole pieces in a magnetically geared manner and being selectively energizable to control electromagnetic coupling of the first array of pole pieces with the second array of pole pieces, and thereby to transfer at least one of torque and speed from the input shaft to the output shaft. | 04-26-2012 |
| 20120194021 | MAGNETIC GEAR - A magnetic gear comprises a first permanent magnet field having a plurality of permanent magnet magnetic poles, a second permanent magnet field having a plurality of permanent magnet magnetic poles, number of poles of which magnet is different from that of the first permanent magnet field, and a modulating magnetic pole arranged between the first permanent magnet field and the second permanent magnet field and having a plurality of pole pieces to modulate the number of poles of the first and second permanent magnet fields. Non-magnetic bars are provided between the plurality of pole pieces. One ends of the non-magnetic bars are fixed to a first non-magnetic end holding member and the other ends of the non-magnetic bars are electrically insulated from and fixed to a second non-magnetic end holding member. | 08-02-2012 |
| 20120223606 | Eccentric Magnetic Gear System Based on Repulsion - An eccentric magnetic, non-contacting gear system which can affect shaft speed and torque while minimizing mechanical friction and wear has bi-axial shafts. This efficient, non-contacting gear system can be produced by the interaction of circular arrays (or pitch circles) of permanent magnets with eccentric engagement. Coupling is provided by magnetic field repulsion. Input torque is applied to a circular array of permanent magnets representing a first gear, which then through magnetic fields, not physical contact, transfers the torque to another circular array of permanent magnets representing a second gear having an offset output shaft. Gearing may be done in one step or in stages. | 09-06-2012 |
| 20120262017 | MAGNETIC CLUTCH FOR THE TRANSMISSION OF TIGHTENING TORQUE - Magnetic clutch for the transmission of tightening torque that comprises a first shaft ( | 10-18-2012 |
| 20120280586 | PERMANENT MAGNET COUPLING - The invention relates to a permanent magnet coupling for synchronously transmitting rotary motions, having a first rotor ( | 11-08-2012 |
| 20130002075 | MAGNETIC GEAR ARRANGEMENT - A magnetic gear arrangement includes: a first gear member for generating a first magnetic field, a second gear member for generating a second magnetic field, and a coupling device which provides an arrangement of interpoles between the first gear member and the second gear member. The interpoles couple the first and second magnetic fields to produce a gearing between the first and second gear members. The first gear member has superconducting magnets or coils for generating the first magnetic field and/or the second gear member has superconducting magnets or coils for generating the second magnetic field. | 01-03-2013 |
| 20130002076 | MAGNETIC GEAR MECHANISM - A magnetic gear mechanism including a simplified assembly of a magnetic flux modulating section in the magnetic gear mechanism which improves the strength thereof. In the magnetic flux modulating section of the magnetic gear mechanism, the magnetic flux modulating section being formed of a magnetic member and a non-magnetic member, a piece of the magnetic member and a piece of the non-magnetic member are separately produced. The piece of the magnetic member is sandwiched between circumferential projections provided in pieces of the non-magnetic member, and the magnetic member and the non-magnetic member and bearing holding sections form a structure in which the magnetic member and the non-magnetic member are fitted into the bearing holding sections by using recessed portions provided in the bearing holding sections and axial projections provided in the pieces of the non-magnetic member. This structure simplifies production and improves strength. | 01-03-2013 |
| 20130113317 | PERMANENT MAGNET COUPLING - The invention relates to a permanent magnet coupling for the synchronous transmission of torque, comprising a first member ( | 05-09-2013 |
| 20130119804 | MAGNETIC COUPLER - A magnetic coupling comprising: an outer support having an interior cavity defined by an cavity periphery and being rotatable around an axis of rotation, the outer support having a plurality of outer magnets arranged at or adjacent the cavity periphery; an inner support at least a portion of which is located within the cavity, the inner support being rotatable about an axis and having a plurality of inner magnets arranged around and at or adjacent to a periphery wherein the inner magnets and the outer magnets are arranged such that at a given time, at least a portion of at least some of the inner magnets are located between at least a portion of at least some of the outer magnets. | 05-16-2013 |
| 20130127278 | MAGNETIC GEAR DEVICE AND HOLDING MEMBER - A magnetic gear device including: an internal rotor and an external rotor in which a plurality of magnetic pole pairs are each placed in a circumferential direction substantially at equal intervals; and a holding member that is placed between the internal rotor and the external rotor and holds a plurality of magnetic materials in the circumferential direction substantially at equal intervals, wherein the number of magnetic materials is a difference between or a total of the numbers of magnetic pole pairs, the holding member includes a plurality of circular rings that hold the magnetic materials, and connecting rods that are placed in the circumferential direction substantially at equal intervals and connect the plurality of circular rings, the plurality of circular rings face each other via the magnetic materials, and each number of magnetic pole pairs is set to have the number of connecting rods as a divisor. | 05-23-2013 |
| 20130285497 | MAGNETIC DRIVE APPARATUS - A primary disc and the secondary discs are each fitted with magnetic means, typically in the form of permanent magnets of the same polarity, located along a radial line from the centre point of the discs, and arranged generally transverse to the axis of rotation of the respective disc. These magnets are also located at or adjacent to the periphery of the disc(s). The magnets are embedded into each of the primary and secondary discs such that the faces of the magnets are flush with the exterior faces of the primary and secondary discs. In some embodiments, the magnets on the primary and secondary discs are arranged so as to be parallel, with their respective elongate, straight side edges aligned. Such an arrangement can result in less slippage between the discs which hold the magnets, and can assist in handling some misalignment which may occur between these discs during use, thus allowing smoother operation. | 10-31-2013 |
| 20130320795 | Magnetic Gear Mechanism - The present invention is intended to provide a magnetic gear structure that realizes a magnetic gear that transmits a torque efficiently by reducing eddy currents generated in the interior of magnets. In order to solve the subject described above, in the magnetic gear structure, a structure in which magnets are arranged in the interior of an iron core in an inner rotor portion. Bonded magnets formed by molding, for example, NdFeB powder may be used as the magnets. Since the influence of the eddy current on the side of an outer rotor having a larger pole number is large, a structure in which the magnets are arranged in the interior only of an outer rotor portion having a larger pole number is also applicable. In addition, the magnets to be embedded may be divided into a plurality of pieces. The finer the division of the magnets, the less eddy currents are generated, so that a method of further fining down and assembling the same is also effective. Further reduction of the eddy currents is possible by laminating the plate-shaped magnets having a thickness equivalent to an electromagnetic steel plate in the axial direction. | 12-05-2013 |
| 20140062241 | MAGNETIC SHEAR FORCE TRANSFER DEVICE - A magnetic shear force transfer device for transferring shear forces across a non-magnetic gap includes a first magnetic structure comprising concentric circular tracks of magnetic sources magnetically printed into a first magnetizable material a second magnetic structure comprising concentric circular tracks of magnetic sources magnetically printed into a second magnetizable material. Each concentric circular track has an even number of magnetic sources where adjoining magnetic sources alternate in polarity. One or more tracks of the first magnetic structure are rotated relative to one or more tracks of the second magnetic structure such that a maximum torque condition coincides to one angular orientation between the first and second magnetic structures. | 03-06-2014 |
| 20140103765 | GEAR TRAINS EMPLOYING MAGNETIC COUPLING - A first movable element includes a first Halbach array permanent magnet array. A second movable element placed in operable proximity to said first Halbach array includes a second Halbach array permanent magnet array. The first Halbach array is configured to transmit torque upon movement to the second movable element by magnetic force, wherein the torque is transferred with no physical contact occurring between the first movable element and the second movable element. | 04-17-2014 |
| 20140167545 | Magnetic Couplings - A magnetic coupling ( | 06-19-2014 |
| 20140167546 | Magnetic Gear Device - The magnetic gear device is equipped with a first magnet row in which a plurality of magnetic pole pairs are arranged at substantially equal intervals in a specific direction; a second magnet row which is opposed to the first magnet row and in which a plurality of magnetic pole pairs are arranged at substantially equal intervals in the specific direction at a pitch shorter (or longer) than that of the first magnet row; and a magnetic body row which is disposed between the first magnet row and the second magnet row and in which a plurality of magnetic bodies are arranged at substantially equal intervals in the specific direction, wherein a distance between the plurality of magnetic bodies and the second magnet row in the opposing direction is shorter (or longer) than a distance between the plurality of magnetic bodies and the first magnet row. | 06-19-2014 |
| 20140197707 | MAGNETIC DRIVE APPARATUS - A primary disc and the secondary discs are each fitted with magnetic means, typically in the form of permanent magnets of the same polarity, located along a radial line from the centre point of the discs, and arranged generally transverse to the axis of rotation of the respective disc. These magnets are also located at or adjacent to the periphery of the disc(s). The magnets are embedded into each of the primary and secondary discs such that the faces of the magnets are flush with the exterior faces of the primary and secondary discs. In some embodiments, the magnets on the primary and secondary discs are arranged so as to be parallel, with their respective elongate, straight side edges aligned. Such an arrangement can result in less slippage between the discs which hold the magnets, and can assist in handling some misalignment which may occur between these discs during use, thus allowing smoother operation. | 07-17-2014 |
| 20140203678 | MAGNETIC COUPLING - A rotatable magnetic coupler includes disc carrying, circumferentially spaced magnets arranged in rows on a first side of the disc. The magnets are oriented such that one pole of a first magnetic polarity from each magnet faces outwardly from the disc rotation axis while the other pole of a second magnetic polarity for each magnet faces inwardly toward the axis of rotation. The inner row magnets are preferably of lesser height than the outer row magnets to intensify a virtual gear-coupling effect in the magnetic field lines. A magnetic coupling is formed when two such couplers are rotatably mounted sufficiently close to one another that their magnetic fields are coupled together, such that rotation of one coupler rotatably drives the second coupler. | 07-24-2014 |
| 20140210291 | FLUX FOCUSING MAGNETIC GEAR ASSEMBLY USING FERRITE MAGNETS OR THE LIKE - The present invention relates generally to a flux focusing magnetic gear assembly using ferrite magnets or the like. The present invention also relates generally to a flux focusing magnetic gear assembly using ferrite magnets or the like that incorporates an outer stator assembly that converts a variable input to a constant output. The present invention further relates generally to an axially aligned flux focusing magnetic gear assembly using ferrite magnets or the like. The improved flux focusing magnetic gear assemblies of the present invention find applicability in traction, wind, and ocean power generation, among other applications. | 07-31-2014 |
| 20140232227 | MAGNETIC TRANSMISSION - An electromagnetic transmission assembly. The electromagnetic transmission assembly includes a stator having a central axis and a plurality of selectively-energized electromagnetic poles. A first rotor assembly is rotatably supported for rotation about the central axis. The first rotor assembly including a first rotor shaft and a castellated rotor including a plurality of radially arranged ferromagnetic pole portions disposed in a housing. A second rotor assembly is rotatably supported for rotation about the central axis. The second rotor assembly includes a second rotor shaft and a permanent-magnet rotor. The first rotor assembly is at least partially magnetically coupled to the second rotor assembly when the plurality of electromagnetic poles are energized. | 08-21-2014 |
| 20140306566 | MAGNETIC GEAR ARRANGEMENT - A magnetic gear arrangement is provided having a first gear member that generates a first magnetic field and a second gear member that generates a second magnetic field. A plurality of interpoles are disposed between the two gear members for coupling the first and second magnetic fields to control a gear ratio between the gear members. At least one interpole has wiring associated with it that can be activated to alter the magnetic flux at the interpole, so as to vary the coupling between the first and second magnetic fields. The wiring is electrically connected to an electronic filter, which modifies the current passing through the wiring, so as to modify the influence of the wiring on the magnetic flux at the interpole. | 10-16-2014 |
| 20140333166 | Magnetic Drive System and Method - A magnetic coupling device for communicating continuous rotational or linear motion through a magnetic coupling of magnetic forces communicated from magnets operatively positioned on an oscillation assembly and a rotation assembly in positions sufficiently proximate to form the magnetic coupling. Employed to communicate an output force in a rotational direction from an input linear force communicated from a powered oscillation assembly, the magnetic force of the magnet communicating the force compresses the volume of ellipsoidal-like magnetic fields of the coupling alternately in unlike polar domains, to induce a smooth, blended polar continuity and communicate a continuous 360 degree rotational force to a rotation assembly operatively engaged with the magnetic coupling. The input force may be reversed to induce a continuous linear motion of a reciprocating assembly. | 11-13-2014 |
| 20150048702 | NON-CONTACT TYPE POWER GENERATOR - A non-contact type power generator includes at least one metal element continuously rotated by force generated by an outer device; at lest one magnetic rotor disposed near the metal element without contact and rotated with respect to an axis by the metal element; and a coil disposed around the magnetic rotor. The metal element rotates continuously to rotate the magnetic rotor to cut the magnetic line generated by the coil to generate induced power for other devices. | 02-19-2015 |
| 20150061439 | MAGNETIC RELUCTANCE COUPLING HAVING TWO ROTORS - A simplified magnetic reluctance coupling for coupling a first shaft to a second shaft, has a hollow cylindrical stator which has at least one magnet that is/are distributed around the circumference of the stator. The reluctance coupling also has a first rotor, which is supported in such a way that it can rotate within the stator, is connected to a first shaft in a rotationally fixed manner, and has a plurality of ferromagnetic first portions distributed around the circumference thereof and spatially separated from one another, as well as a second rotor, which is supported in such a way that it can rotate within the first rotor, is connected to the second shaft in a rotationally fixed manner, and has a plurality of ferromagnetic second portions distributed around the circumference thereof. | 03-05-2015 |
| 20150076948 | POWER TRANSMISSION APPARATUS - A power transmission apparatus working to magnetically transmit power is provided which includes a first rotor including n soft-magnetic members, a second rotor including k soft-magnetic members, and a third rotor including magnets whose number of pole pairs is m where m is an integer more than or equal to one, the number of the magnets meeting a relation of 2m=|k±n| where n and k are an integer more than one. The first rotor, the second rotor, and the third rotor are arranged in magnetic coupling with each other. The soft-magnetic members of each of the first rotor and the second rotor are arranged at intervals away from each other, thereby minimizing the leakage of magnetic flux flowing from one of the soft-magnetic members to another in each of the first and second rotor to ensure the stability in operation of the power transmission mechanism. | 03-19-2015 |
| 20150108863 | NON-CONTACT POWER TRANSMISSION APPARATUS - An aspect of the present invention has a first disk-shaped member coupled to a first rotating shaft to rotate and a first plate-shaped member having a surface perpendicular to a surface of the first disk-shaped member and holding a first magnet. Moreover, a second disk-shaped member provided so as to face the first disk-shaped member and coupled to a second rotating shaft to rotate, and a second plate-shaped member having a surface perpendicular to a surface of the second disk-shaped member and holding a second magnet are provided. A magnetic pole of the first magnet on a side facing the second magnet and a magnetic pole of the second magnet on a side facing the first magnet have the same pole. | 04-23-2015 |
| 20150357898 | ELECTROMAGNETIC COUPLING APPARATUS - The present invention relates to an electromagnetic coupling apparatus ( | 12-10-2015 |
| 20160036311 | MAGNETIC CLUTCH SYSTEMS AND METHODS - A magnetic clutch system having an engaged configuration and a disengaged configuration includes a first magnet rotor coupled to an input shaft and having a first sequence of magnets and a second magnet rotor coupled to an output shaft having a second sequence of magnets, the first and second sequence of magnets are arranged such that rotation of the first magnet rotor causes rotation of the second magnet rotor to drive the output shaft. The magnetic clutch system also includes a mechanism configured to facilitate slideable movement of the first magnet rotor or the second magnet rotor from the engaged configuration to the disengaged configuration. | 02-04-2016 |
| 20160087517 | LARGE MAGNETICALLY GEARED MACHINES - An electrical machine is provided comprising a first rotor, wherein the first rotor includes a support structure, a second rotor, a stator and, wherein the first rotor, second rotor and stator are arranged concentrically about a shaft, and at least one of the second rotor and the stator is adapted to accommodate the support structure. An electrical machine is also provided comprising a shaft having an axis, at least one first rotor, at least one second rotor, at least two stators and, wherein the first rotor, second rotor and stators are arranged axially along the shaft and extend from the axis. | 03-24-2016 |
| 20160380525 | MAGNETIC SPIRAL BEVEL GEAR - A magnetic spiral bevel gear including a frustoconical housing with a rotational axis and magnets arranged around an outer surface of the frustoconical housing. The magnets are arranged in spirals on the outer surface, with each spiral alternating polarity. Each may be formed by a single continuous magnet of by discrete magnets. Gear assemblies as disclosed including a two-gear assembly, a four-gear assembly, and a six-gear assembly. Gear assemblies are arranged such that the gear surfaces are parallel without touching, and rotation of one gear causes rotation of the remaining gears. | 12-29-2016 |
| 310104000 | With air-gap shield | 8 |
| 20100314960 | DYNAMIC BARRIER ISOLATION CHAMBER - The invention concerns an isolation chamber for isolating substances from the ambient. The isolation chamber comprises a first container surrounding and defining an isolation space for holding the substances and a second container surrounding the first container. A barrier space is positioned between the first and the second containers. Preferably, the pressure of the isolation space is lower than the pressure of the barrier space. | 12-16-2010 |
| 20110193438 | PULSE ADAPTER ASSEMBLY - A pulse adapter assembly that includes a pulse assembly that has a housing with a cavity disposed therein that receives a sensing device and a driven magnet. The adapter assembly has a shaft having a bearing assembly thereon and driver magnet wherein the shaft is disposed within the cavity of the pulse assembly such that the driven magnet and driver magnet couple to position the driven magnet at a predetermined distance from the sensing device. A workpiece such as a flow meter is attached to the adapter assembly wherein the sensing device monitors the driven magnet to determine an operational parameter of the workpiece. | 08-11-2011 |
| 20110234035 | MAGNETIC COUPLING AND SPLIT CASE FOR A MAGNETIC COUPLING - Magnetic coupling, at least comprising an inner rotor, an outer rotor, and a split case, which is disposed between the inner and outer rotors and is made of an electrically non-conductive material, characterized in that the split case consists exclusively of glass. | 09-29-2011 |
| 20120293031 | COUPLER - The invention relates to a coupling element for a magnetic gear having a coupling element for coupling magnetic flux between first and second movable members, each having an array of magnetic poles arranged thereon. The coupling element is formed from a sheet of magnetically permeable material and incorporates coupling portions and support portions integrally formed together. The coupling element sheet can be rolled into a cylindrical shape and used as the coupling element in a magnetic gear as described above. Optionally, the magnetic gear is decoupleable by virtue of the coupling element being arranged such that an external magnetic field can be selectably applied to it, thereby causing saturation and resultingly substantially preventing coupling of magnetic flux between the first and second members. | 11-22-2012 |
| 20120313472 | MAGNETIC PARTICLE INDUCED PLUGGING RESISTANT MAGNETIC COUPLING - A magnetic coupling includes an inner mover including an inner magnet region including a plurality of magnets disposed in circular arrangement around an axis of rotation. The coupling also includes an outer mover surrounding the inner magnet region, the outer mover including an outer component and an inner component, wherein the inner component and outer component are separated from each other in a first location and a second location. The coupling further includes a first magnet disposed in the first location and having a first polarity and a second magnet disposed in the second location adjacent to the first magnet and having a second polarity opposite the first magnet. The first and second magnets each include two endpoints and have a depth measured from an inner magnet surface to an outer magnet surface measured in a radial direction extending from the axis of rotation, the depth decreases from a maximum value to a minimum value, the minimum value being measured at the endpoints. | 12-13-2012 |
| 20130057098 | SEALED TRANSMISSION DEVICE FOR HELIUM SPACE OF HIGH TEMPERATURE GAS COOLED REACTOR AND DRIVE DEVICE THEREOF - A sealed transmission device for a helium space of a high temperature gas cooled reactor and a drive device thereof are disclosed. The helium space ( | 03-07-2013 |
| 20140077646 | SHAFT COUPLING APPARATUS, ROTARY FLUID DAMPER, AND DEPLOYABLE DEVICE WITH MAGNETIC COUPLING MECHANISM - A shaft coupling apparatus, a rotary fluid damper, and a deployable device are provided herein. In an embodiment, the shaft coupling apparatus includes a chamber having a non-magnetic diaphragm delimiting at least a portion of the chamber. A first shaft is disposed in the chamber and is rotatable about a first axis. A second shaft is disposed outside of the chamber and is rotatable about the first axis. The diaphragm is disposed between the first and second shafts and separates the first and second shafts from direct physical contact. A magnetic coupling mechanism includes a first magnetic coupler attached to the first shaft and a second magnetic coupler attached to the second shaft, with the first and second magnetic couplers separated by the diaphragm. Magnetic coupling forces are generated between the first and second magnetic couplers to transfer rotational energy from the first magnetic coupler to the second magnetic coupler. | 03-20-2014 |
| 20140265692 | PARTIAL FLOW GUIDE, IN PARTICULAR OF A MAGNETIC COUPLING PUMP - The invention relates to a conveying element ( | 09-18-2014 |
| 310105000 | Induced or eddy current type | 14 |
| 20100277021 | Apparatus for transferring torque magnetically - An apparatus for transferring torque magnetically with a primary rotary member and a secondary rotary member, wherein said rotary members are disc shaped and are sandwiched between one another. The primary rotary member has permanent magnets mounted radially on a disc, the secondary rotary member having disc geometry with electro conductive material arranged on it. The secondary rotary member also having magnetically permeable material. The new improvements herein have modified the earlier cylindrical design to that of a an alternative disk—plate/shape design utilizing the similar magnetic circuit that which overcomes some deficiencies/problems in the prior art, in that the prior art required more precision alignment of the electro-conductive rotor inside the magnetic can array and requires additional strength in the foundations of the machinery in order to maintain the air gap between the magnet can and the rotor assembly. | 11-04-2010 |
| 20110148236 | TEMPERATURE COMPENSATION TUNABLE MAGNETIC DAMPING - A damping apparatus is disclosed including at least one pair of magnets, a conducting member, a magnetic shunt, and a temperature sensing mechanism. The pair of magnets defines a gap therebetween. The magnets generate a magnetic flux circuit having a magnetic flux path within the gap and a magnetic flux return path outside the gap. The conducting member is positioned at least partially within the gap. The magnetic shunt is positioned at least partially within the magnetic flux return path of the magnets. The temperature sensing mechanism is coupled to the magnetic shunt. The temperature sensing mechanism is configured to control a position of the magnetic shunt based on a sensed temperature. | 06-23-2011 |
| 20120306306 | COUPLING DEVICE AND METHOD OF MANUFACTURING COUPLING DEVICE - This coupling device includes a magnet rotator and a yoke-side member, while a conductor portion of the yoke-side member has a plurality of first conductor portions at least on a side opposed to magnets. A yoke of the yoke-side member is arranged at least on the side opposed to the magnets in a clearance between the plurality of first conductor portions. The ratio of the circumferential length of each of the first conductor portions to the circumferential length of the yoke is at least 1/1.4. | 12-06-2012 |
| 20130049508 | ELECTRIC DAMPER - An electric damper for damping the relative movement between a first and a second mass includes a generator integrated into a gear and driven by the movement of the first and second masses. A first gear element forming a stator is set into rotation by the movement of the masses. A second gear element forming a rotor is rotated by the rotation of the first gear element. The second gear element is directly or indirectly coupled to the first gear element with a gear ratio. Either the first or the second gear element includes means for generating a magnetic field. | 02-28-2013 |
| 20140145535 | Eddy Current Torque Transfer Coupling Assembly - An electrical slip coupling assembly and method for enhancing transmission of torque are provided. The coupling assembly includes a field member (FM), an armature member (AM), and annular windings. The FM includes flux concentrating axial and radial teeth. The AM includes an interchangeable non-ferrous electrically conductive material cladding on an axial inner surface of the AM and a relatively low conductivity ferrous material cladding on a radial inner surface of the AM. The excitation of the annular windings induces the axial teeth and the radial teeth to generate flux field concentrations that create an axial eddy current zone (AECZ) in the AM across an axial air gap, and a radial eddy current zone (RECZ) in the AM across a radial air gap. During relative motion between the FM and the AM, the eddy currents in the AECZ and the RECZ create a driving torque between the FM and the AM. | 05-29-2014 |
| 20140239762 | APPARATUS, SYSTEMS AND METHODS FOR REDUCING NOISE GENERATED BY ROTATING COUPLINGS - A heat sink element for an adjustable speed magnetic drive unit operable by relative rotation of a conductor rotor assembly and a magnet rotor assembly includes a base portion and a plurality of groupings of fins. The base portion includes a mounting face that is sized and dimensioned to be coupled to the conductor rotor assembly, and an opposing convective heat transfer face. The plurality of groupings of fins extend from the convective heat transfer face of the base portion. Adjacent fins in each grouping of fins are separated by a channel that extends along a longitudinal direction of the fins. The plurality of groupings of fins are separated by at least one slot that extends substantially transverse to the longitudinal direction. | 08-28-2014 |
| 20140346909 | LITHOGRAPHY DEVICE WITH EDDY-CURRENT BRAKE - A lithography device includes an eddy-current brake for damping the movement of a structural element of the lithography device. The eddy-current brake includes a plurality of magnets disposed in an arc-shaped arrangement, and a plurality of electrically conductive sheets arranged respectively between adjacent ones of the magnets. A relative movement between the magnets and the electrically conductive sheets in a direction to be damped inducing eddy currents in the electrically conductive sheets. | 11-27-2014 |
| 20140361652 | INTEGRATED ELECTROMAGNETIC CLUTCH AND EDDY-CURRENT COUPLING - A system for transmission of power includes a clutch having a driven clutch member and a driving clutch member. The driven and driving clutch members are operatively connected to one another for common rotation in a first position with the clutch members engaged to one another and for rotation relative to one another in a second position with the clutch members disengaged from one another. An eddy-current coupling is operatively connected to selectively move at least one of the clutch members to engage and disengage the clutch members between the first and second positions. The eddy-current coupling is also operatively connected to provide electromagnetic eddy-current coupling between the clutch members with the clutch members in the second position disengaged from one another to drive the driven clutch member at a rate different from that of the driving clutch member. | 12-11-2014 |
| 20150069872 | CYLINDRICAL PERMANENT MAGNETIC COUPLING DEVICE - A cylindrical permanent magnetic coupling device includes a conductor rotor and a permanent magnet rotor. The conductor rotor includes a bottom and a sidewall surrounding the bottom for defining a cavity, in which the cavity includes at least two different inner diameters. The permanent magnet rotor is arranged in the cavity for providing at least two different air gaps between the conductor rotor and the permanent magnet rotor. | 03-12-2015 |
| 20150295487 | Overmolded Flux Ring - An overmolded steel flux ring member for an eddy-current fan drive assembly. The flux ring member includes a base member having a hub member, an annular outer ring member, and a plurality of connecting arm members. An overmolding material, such as aluminum, is overmolded on the annular outer ring member preferably in separate sections. Ventiliation openings in said base member allow air to flow past a magnet ring for cooling. | 10-15-2015 |
| 20160072374 | Low-carbon economical electromagnetic fan cluth - A low-carbon economical electromagnetic fan clutch includes a spindle and a fan fixing disc, wherein the low-carbon economical electromagnetic fan clutch further includes an eddy current disc. The fan fixing disc and the eddy current disc are sequentially arranged at a left end of the spindle along an axial direction from left to right; one or multiple groups of permanent magnets are arranged on the fan fixing disc around the spindle, and a conductive non-magnetic-conductive material is fixed at a corresponding position of the eddy current disc; the fan fixing disc is rotationally connected with the spindle through a first bearing, and the eddy current disc is rotationally connected with the spindle through a second bearing. In the low-carbon economical electromagnetic fan clutch, an electromagnetic eddy current high heat accumulation area is effectively separated from the fan fixing disc rotating at a high speed. | 03-10-2016 |
| 310106000 | Magnetic reluctance feature | 2 |
| 20100207473 | COUPLING DEVICE FOR THE TRANSMISSION OF TORQUE, AND METHOD FOR THE TRANSMISSION OF TORQUE USING SUCH A COUPLING DEVICE - A coupling device for the transmission of torque. The coupling device includes a drivable rotor part, an output shaft rotatably connected with an armature part, a hysteresis part disposed on the armature part, permanent magnets configured to generate a magnetic field through which magnetic field a torque can be transmitted from the rotor part to the armature part, a stator part in which an electromagnet is disposed, the electromagnet being configured to induce a magnetic flux in the rotor part so as to adjust a torque from the rotor part to the armature part, and a synchronous coupling disposed between the stator part and the armature part. | 08-19-2010 |
| 20110215668 | MAGNETIC TRANSMISSION ASSEMBLY - A magnetic transmission assembly is adapted to integration with a motor or generator. The magnetic transmission assembly includes a rotor, a stator, and a magnetically conductive element. The rotor and the stator are sleeved coaxially and respectively have R and ST | 09-08-2011 |
| 310107000 | With collection means for induced current | 1 |
| 20100219706 | POWER TRANSMISSION APPARATUS - A rotational difference is generated between a first and a second rotor and a third rotor, which causes an induced current to flow in a first rotor winding. This causes a torque to act between the first rotor and the third rotor. The rotary magnetic field generated by the induced current flowing through a second rotor winding interacts with a second stator, which in turn generates an induced electromotive force in a second stator winding. The induced electromotive force is applied via a phase adjustment circuit to a first stator winding, which generates a rotary magnetic field and causes a torque to act between the first stator and the third rotor. The rotary magnetic field generated by the second rotor winding and the induced current flowing in the second stator winding causes a torque to act between the second stator and the second rotor. | 09-02-2010 |
