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Magnetic Gear patents

      

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




 Gas turbine engine with magnetic gearbox patent thumbnailGas 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 patent thumbnailMagnetic 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 patent thumbnailHeat 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 patent thumbnailA 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


 Magnetic gear device patent thumbnailMagnetic 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.. .

 Magnetic gear system patent thumbnailMagnetic gear system
A magnetic gear system for use anywhere gears are required. The magnetic gear system incorporating magnetic gears including at least one end plate and at least one axle coupled to the at least one end plate.
Jak Research, Llc


 Inherently torque limited magnetically-coupled wheels patent thumbnailInherently torque limited magnetically-coupled wheels
An apparatus having a driving magnetic gear and a driver magnetic gear, disposed on each of which are a series of adjacent magnets of alternating polarity. The magnetic gears are tiltable relative to each other, and the angle of the imaginary driver gear plane at the pivot point between the driving gear and the driver gear must be less than 90° to prevent loss of sequential magnetic interaction beyond which angle, reversal of rotation relative to the driver gear would occur when the sequential magnetic interaction is re-established..

 Magnetic gear with first and second members arranged to interact in a magnetically geared manner patent thumbnailMagnetic gear with first and second members arranged to interact in a magnetically geared manner
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.. .
Magnomatics Limited


 Electric motor and magnetic gear patent thumbnailElectric motor and magnetic gear
An electric motor that can be used in driving a compressor and that incorporates a magnetic gear. The motor has high and low speed stators mounted within a motor casing side-by-side that drive coaxial low and high speed rotors also mounted within the motor casing for rotation and within the high and low speed stators.

 Magnetic gears, and related systems and methods patent thumbnailMagnetic gears, and related systems and methods
A magnetic gear may comprise a first gear member comprising a plurality of permanent magnets arranged to have a first number of magnetic pole pairs and a second gear member positioned relative to the first gear member. The second gear member may comprise a plurality of individually rotatable magnetized elements each driven and synchronized with one another to selectively generate a second number of magnetic pole pairs that differs from the first number of magnetic pole pairs.
National Oilwell Varco, L.p.


Flywheel

An apparatus and method are provided for constructing a magnetic gear coupling for transmitting torque from a flywheel to a driveshaft, the coupling employing permanent magnet arrays and magnetic flux coupling elements therebetween, and at least one of the arrays and coupling elements being circumferentially staggered or spread, so as to avoid complete alignment of the arrays and elements, and thereby mitigate torque coupling capability variations.. .

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.

Magnetic gear mechanism with coils around permanently excited magnet poles

The dynamics of a magnetic gear mechanism are intended to be improved. For this purpose, a magnetic gear mechanism with a stator, a first rotor, which has permanently excited magnet poles (2, 3), and a second rotor, which likewise has permanently excited magnet poles, is proposed.

Downhole assembly with magnetic gearbox

A magnetic change speed gearbox his described for use in a downhole assemblies having a higher speed shaft supported by a gas bearing. The downhole assembly may be one comprising a motor driving a compressor by way of a step-up magnetic gearbox or one comprising a gas turbine driving a pump by way of a step-down magnetic gearbox..

Magnetic gear arrangement having a variable gear ratio

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.

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.

Magnetic powertrain and components

Magnetic powertrains for vehicles comprised of magnetically integrated transmission systems and components built from a plurality of magnetic gears are provided. Embodiments provide magnetic clutches, magnetic differentials, and assemblies of kinetic-electric cvts integrating one or more motors with a flywheel by the use of magnetic gears..

Heat pipe

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.

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.

Heat engine

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.

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.. .

Magnetic gear-type electric rotating machine

To this end, in the present invention, a recess and a projection are provided on a surface of at least one of cores 12, 22 of a first permanent magnet field system 1 and a second permanent magnet field system 2. A projection portion 13 is disposed at a central part in a circumferential direction of permanent magnet magnetic poles 11a, 11b, and a recess portion 14 is disposed at an edge in the circumferential direction of the permanent magnet magnetic poles 11a, 11b..

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.. .

Wellbore esp system with improved magnetic gear

An electrical submersible pump system includes at least one electric motor coupled to a mechanism for hanging the pump system in a wellbore. At least one magnetic gear assembly is coupled at its input to an output of the at least one electric motor.

Magnetic gear for use with wellbore instruments

A wellbore rotating instrument system includes a source of rotational energy for transmission thereof to within a wellbore. At least one magnetic gear assembly is coupled at its input to an output of the source.



Magnetic Gear topics:
  • Magnetic Gear
  • Magnetic Gears
  • Gear Transmission
  • Magnetic Material
  • Connecting Rod
  • Magnetic Field
  • Gear Mechanism
  • Rotary Connector
  • Turbo Compound


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    This listing is a sample listing of patent applications related to Magnetic Gear for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Magnetic Gear with additional patents listed. Browse our RSS directory or Search for other possible listings.


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