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Magnetic Gear patents

      

This page is updated frequently with new Magnetic Gear-related patent applications.

Induction machine with integrated magnetic gear and related methods
an induction machine with integrated magnetic gears is disclosed. The machine comprises two rotors and two stators.
Uti Limited Partnership


Constantly variable transmission device
a variable ratio transmission comprising a rotor including one first set of coils; a second rotor containing first set of iron segments; a third rotor containing second and third set of coils; a fourth rotor containing second set of iron segments; a fifth rotor containing fourth set of coils; the first set of coils in magnetic communication with the first set of iron segments; the first set of iron segments in magnetic communication with the second set of coils; the first, second and third rotors forming a first set of magnetic gears; the third set of coils on the third rotor in magnetic communication with the second set of iron segments on the fourth rotor; the second set of iron segments in magnetic communication with the fourth set of coils; the third, fourth and fifth rotor forming a second set of magnetic gears coupled to the first set of magnetic gears.. .
Advanced Hybrid Pty Ltd


Subsea pressure booster
subsea turbomachine for boosting the pressure of petroleum fluid flow from subsea petroleum productions wells or systems, comprising an electric motor and a compressor or pump driven by the electric motor, a fluid inlet and a fluid outlet, distinctive that the turbomachine comprises a pressure housing common for the electric motor or stator, and compressor, pump or rotor; a magnetic gear inside the common pressure housing for operative connection between the motor or stator and compressor, pump or rotor; and a partition inside the common pressure housing, arranged so as to separate a motor or stator compartment from a compressor, pump or rotor compartment.. .
Aker Solutions As


Pole-piece structure for a magnetic gear
the disclosure provides a pole-piece structure for a magnetic gear, comprising a plurality of laminate plates, wherein each plate comprises one or more apertures and an aperture in each plate aligns with an aperture in an adjacent plate to form one or more channels extending from a first end of the laminate plates to a second, opposite end of the laminate plates, wherein a resin cast is provided within each channel to hold the plurality of laminate plates together.. .
Goodrich Actuation Systems Limited


Long distance power transmission with magnetic gearing
low frequency power is transmitted over long distances from a surface power supply to a subsea rotating machine, such as a pump or compressor. The low frequency power is used to rotate a motor at low speed.
Onesubsea Ip Uk Limited


Laundry treatment apparatus and magnetic gear apparatus
a laundry treatment apparatus and a magnetic gear apparatus are disclosed. The laundry treatment apparatus includes a cabinet (100) defining the appearance of the laundry treatment apparatus, a drum (300) rotatably disposed in the cabinet (100) to contain laundry, and a power unit (600) for rotating the drum (300), wherein the power unit (600) includes a rotating magnetic field generator (680) securely provided in the cabinet (100) to generate rotating magnetic fields, an input magnetic gear part (670) rotatably disposed radially outside the rotating magnetic field generator (680) and including at least one permanent magnet to transfer rotating magnetic fields, a magnetic path formation part (640) disposed radially outside the input magnetic gear, and an output magnetic gear part (620) disposed radially outside the magnetic path formation part (640) and including at least one permanent magnet therein..
Lg Electronics Inc.


Equipment support of a turbo machine comprising a reducer with magnetic gears
an equipment support including at least one attachment including an output shaft, an input gear wheel, the input gear wheel being both rotated by the motor shaft at a main speed and also connected to the output shaft of the attachment in order to rotate it at a determined output speed, an input shaft, rotated by the input gear wheel at a determined input speed, and a reducer with magnetic gears, arranged between the input shaft and the output shaft, such that the input speed is different from the output speed.. .
Safran Transmission Systems


Magnetic gearboxes including magnetic gears rotatable with sequential magnetic linkage between the magnetic gears
a magnetic gear system including magnetic gearboxes where one of a driving gear and a driven gear are in sequential magnetic linkage, and one of the magnetic gears can be tilted relative to the other gear wherein the magnetic gears are prevented from overlapping each other to prevent loss of sequential magnetic interaction. A magnetic gearbox is also disclosed where a driving gear can be tilted relative to a driven gear to change the torque, the rotational speed of the driven gear, and if tilted far enough, to change the direction of rotation of the driven gear.

Washing machine
disclosed is a magnetic gear apparatus including a rotational magnetic force generator configured to generate rotational magnetic force, a magnetic path creator having a hollow shape so as to be provided at an outer circumferential surface of the rotational magnetic force generator, the magnetic path creator being configured to create a magnetic path of the rotational magnetic force generated from the rotational magnetic force generator, and a rotor provided at an outer circumferential surface of the magnetic path creator, the rotor including permanent magnets provided at an inner circumferential surface thereof and being rotatable by the rotational magnetic force. The rotational magnetic force generator includes one or more pairs of alternately arranged n-pole units and s-pole units.
Lg Electronics Inc.


Substrate processing apparatus
a substrate processing apparatus includes a mounting stand installed to rotate about a rotation shaft extending along a rotary shaft of a rotary table and configured to hold a substrate, and a magnetic gear mechanism including a driven gear configured to rotate the mounting stand about the rotation shaft and a driving gear configured to drive the driven gear. The driven gear is connected to the mounting stand via the rotation shaft and installed to rotate in such a direction as to rotate the mounting stand.
Tokyo Electron Limited


A magnetic gear

the present invention relates to a magnetic gear comprising a first magnetic rotor with a first shaft; and a second magnetic rotor with a second shaft; a support structure, with a first end shield and a second end shield connected by a stat or support element. A first bearing attached to the first end shield supports the first shaft and a second bearing supports the second shaft.
Grundfos Holding A/s

A magnetically geared electric drive

the invention provides an encapsulated magnetically geared brushless electric marine propulsion system with the principle components arranged axially around the central shaft. The marine propulsion system includes: the brushless dc motor, comprised of the stator fixed to the central shaft and motor magnets fixed within the motor rotor coupled to the central shaft using precision ball bearings; the high-speed magnetic gear rotor coupled to the motor rotor comprising an alternating array of magnets fixed to a ferromagnetic backing; the environmental barrier which protects the motor and additionally houses pole pieces to modulate magnetic flux; the low-speed magnetic gear rotor coupled to the central shaft and comprised of an alternating array of magnets fixed to a ferromagnetic backing; the propeller coupled to the low-speed magnetic gear rotor; and the shroud coupled to the struts of the motor mounting system..

Variable gear ratio electrical machine

an electrical machine including a moveable permanent magnet configured to generate a first magnetic field. A stator including windings configured to excite a second magnetic field.
Rolls-royce Plc

Cycloidal magnetic gear system

a cycloidal magnetic gear system for a turbine system is disclosed. The system includes a first stator magnet ring, a second stator magnet ring positioned opposite the first stator magnet ring, and a rotor positioned between the first and second stator rings of magnets.
Emrgy, Inc.

Method and compact axial flux magnetically geared machines

an axial flux magnetic geared machine includes a high speed magnetic rotor and a low speed magnetic rotor maintained in a spaced relationship from the high speed magnetic rotor. A modulating structure is disposed between the high speed magnetic rotor and the low speed magnetic rotor.
The Texas A&m University System

Posture holding device for holding part

a posture holding device is for use in a transfer device which has a holding part configured to hold an object and a first link and a second link connected to the holding part. The transfer device moves the first link and the second link relative to the holding part so as to move the holding part between a transfer position and a standby position.
Tokyo Electron Limited

Generator comprising a variable speed magnetic gear

a generator comprising a magnetic gear, the magnetic gear comprising a stationary member comprising a set of electromagnets, a first moveable member comprising a set of magnets, and a second moveable member disposed between the first moveable member and the stationary member. The second moveable member comprises a set of core members.
Jaguar Land Rover Limited

Flywheel energy storage device, wind power generation system and vehicle energy feedback brake system

provided is a flywheel energy storage device including a radial magnetic gear, the radial magnetic gear includes an inner rotor, an outer rotor and n1 first magnetic pole adjustment sheets embedded in a first magnetic pole adjustment sheet base; a disc-type magnetic gear electric motor includes a first stator disc, a first rotor disc, a second stator disc, a second rotor disc and a third rotor disc, the first stator disc with the first rotor disc form a first disc-type electric motor, the second stator disc with the second rotor disc form a second disc-type electric motor, and a disc-type magnetic gear is formed by the first rotor disc, the second rotor disc and the third rotor disc, and the first disc-type electric motor, the second disc-type electric motor and the disc-type magnetic gear are couple with one another to form the disc-type magnetic gear electric motor.. .
South University Of Science And Technology Of Chin A

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 University Of North Carolina At Charlotte

Pole-piece structure for a magnetic gear

the disclosure provides a pole-piece structure for a magnetic gear, comprising a plurality of laminate plates, wherein each plate is a metallic ring having a plurality of regularly spaced substantially solid portions joined by hollow connecting portions 104, wherein each plate is connected to an adjacent plate by a connecting means that is formed from or uses the material of the plates, such that the laminate plates form a mono-structure held together by the material of the plates.. .
Goodrich Actuation Systems Limited

A magnetic gear reducing transmission of torque pulsation

a system comprises an input member, an output member, a magnetic gear connecting the input member to the output member and control means arranged to control the flow of power from the input member to the output member. The magnetic gear comprises a first set of magnetic poles, a second set of magnetic poles, and a set of pole pieces arranged to modulate the magnetic field between the first set of magnetic poles and the second set of magnetic poles.
Magnomatics Limited

Gas turbine engine with magnetic gearbox

a magnetic gearbox for use in a gas turbine engine includes an inner rotor assembly, a stator assembly, and an outer rotor assembly. The inner rotor assembly includes a first plurality of permanent magnets and an inner rotor.
Rolls-royce North American Technologies, Inc.

Magnetic gear device

cylindrical outer and inner rotors coaxially supported so as to be rotatable, and a cylindrical stator interposed between the rotors are provided, and rotational torque is transmitted between the outer rotor and the inner rotor by interaction between: a plurality of magnets uniformly arranged on the inner circumference of the outer rotor; a plurality of magnets uniformly arranged on the outer circumference of the inner rotor; and a plurality of magnetic bodies juxtaposed at equal intervals in the circumferential direction of the stator. Rod-shaped magnetic bodies extending in the axial direction of the stator are used, and each magnetic body is placed in skew arrangement with a deviation amount in the circumferential direction corresponding to 1/12 to ¼ of the juxtaposition pitch in the circumferential direction between one axial end and the other axial end.
Hitachi Metals, Ltd.

Heat engine system

an improved heat engine is disclosed. The heat engine comprises at least one heat pipe containing a working fluid flowing in a thermal cycle between vapor phase at an evaporator end and liquid phase at a condenser end.

A magnetic gear

a magnetic gear comprising: first and second members arranged for relative movement therebetween, the first member having a first array of magnetic field generating elements and the second member having a second array of magnetic field generating elements; and a coupling member having an array of coupling elements for coupling magnetic flux between the first array of magnetic field generating elements and the second array of magnetic field generating elements, wherein for at least one of the coupling elements, there is provided a cooling path in thermal communication with the at least one coupling element, wherein the cooling path is provided within at least one of the at least one coupling element and the coupling member.. .
Ricardo Uk Limited

Hitachi Metals, Ltd.

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Magnetic gear device

the magnetic gear device is equipped with a cylindrical first magnet row in which a plurality of magnetic pole pairs are arranged at substantially equal intervals in a circumferential direction; a cylindrical second magnet row which is arranged coaxially at an outer side of the first magnet row so as to be opposed to the first magnet row and in which a plurality of magnetic pole pairs are arranged at substantially equal intervals in the circumferential direction at a pitch shorter than that of the first magnet row; and a cylindrical magnetic body row which is disposed between the first magnet row and the second magnet row and in which a plurality of magnetic bodies 22 are arranged at substantially equal intervals along the circumferential direction, wherein a distance between the plurality of magnetic bodies 22 and the second magnet row is shorter than a distance between the plurality of magnetic bodies 22 and the first magnet row, and each magnetic body 22 is configured to be widened in the circumferential direction on the side of the first magnet row compared to the side of the second magnet row.. .