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8179007 |
Gimbal
A gimbal arrangement comprises a socket (6) having a partially spherical inner surface with a first radius; a ball (2) located within the socket and having a partially spherical outer surface with...
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8169118 |
High-aspect-ratio homopolar magnetic actuator
A homopolar magnetic actuator is configured to exert controllable radial forces on a body adapted to rotate around an axis. The actuator comprises at least three radial magnetic pole assemblies...
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8169114 |
Large gap horizontal field magnetic levitator
The invention is a magnetic levitation device that has a pair of permanent magnets or electromagnets, which are used to create a large constant magnetic field on a horizontal plane between two...
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8164294 |
Torquer apparatus
In general, one aspect of the subject matter described in this specification features a torquer apparatus that includes a rotor with magnetic poles such that, when radially projected on a...
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8154164 |
System and method for device suspension and wireless power transmission
A system and method for device suspension and wireless power transmission are disclosed. According to one embodiment, an apparatus, comprises a suspended object having a wireless receiving circuit....
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8140178 |
Machine tool system for measuring shape of object to be measured by using on-board measuring device
In a simultaneous multi-axis measuring machine tool system including linear drive axes and rotation axes to measure a surface shape of an object to be measured by using an on-board measuring device...
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8134264 |
Large capacity hollow-type flywheel energy storage device
Disclosed is a large capacity hollow-type flywheel energy storage device. The energy storage device includes a hollow shaft, a vacuum chamber receiving the hollow shaft, a flywheel having a...
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8120215 |
Motor and control unit thereof
A motor and a control unit therefor comprise: salient rotor poles and salient stator poles, which are arranged along circumferences of phases A, B and C with an even interval therebetween; magnetic...
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8113799 |
Oil-free centrifugal blade compressor and magnetic-gas bearing thereof
A magnetic-gas bearing disposed in a compressor is provided. The magnetic-gas bearing includes an axis, multiple magnetic elements, multiple magnetic coils and a static pressure gas restrictor. The...
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8113793 |
Fan
The present invention provides fan with an inrunner motor. The fan includes a fan frame, a rotor and a stator. The fan frame includes a base. The rotor includes a hub, a bushing and a magnetic...
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8115358 |
Method and systems for operating magnetic bearings and bearingless drives
A magnetic bearing arrangement for a rotary device includes circuitry for generating a multiphase excitation signal for energizing the phase windings of a magnetic bearing element. According to an...
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8115349 |
Magnetic levitation system
A magnetic levitation system includes a levitation-actuator movable element which generates a levitation force applied to a control object; and a levitation-actuator stator which receives a...
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8110955 |
Magnetic bearing device of a rotor shaft against a stator with rotor disc elements, which engage inside one another, and stator disc elements
The magnetic bearing device contains soft-magnetic rotor disc elements, which radially engage inside one another, and soft-magnetic stator disc elements. These elements are, on their sides facing...
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8106556 |
Emergency rolling bearing that is insensitive to axial load
The emergency rolling bearing for a rotary machine having magnetic bearings includes at least first and second bearing members with radial clearance of value εr/2 that is of the order of half the ...
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8102088 |
Generating electromagnetic forces with flux feedback control
An electromagnetic actuator with flux feedback control includes two poles located on opposite sides of a soft-magnetic target. A bias flux is introduced that flows into both poles. Magnetic...
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8089186 |
Spindle motor having bushing
A spindle motor is provided. The spindle motor includes a base, a bearing housing, a bearing, a rotation shaft, a stator, a bushing, and a rotor. The bearing housing is installed on the base. The...
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8081362 |
Method and apparatus for stabilizing galvanometer scanner
A galvanometer scanner includes a mechanical support unit engaged with a far end of an optical element. A near end of the optical element is connected to an output shaft of an electric rotary...
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8074922 |
Discoidal flying craft
A flying craft has an aerodynamic aircraft fuselage structure preferably disc shaped. A pair of coaxial electrokinetic motor-generators are mounted concentrically, and preferably centered within...
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8072105 |
Axial bearing
An axial bearing for a high speed open-end spinning rotor mounted without axial thrust in a support disc bearing arrangement has a static magnetic bearing component secured in a bearing housing...
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8072104 |
Cooling of a magnetic bearing
A rotary machine, which can be a turbine or a rotary compressor, is provided. The rotary machine includes a stationary housing and a rotating shaft supported in the housing by a magnetic bearing,...
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8058758 |
Apparatus for magnetic bearing of rotor shaft with radial guidance and axial control
Radial, soft magnetic rotor disk elements which engage in each other and soft magnetic stator disk elements form a magnetic bearing device. The elements are provided with teeth-like extensions...
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8053940 |
Magnetic motor generator having a floating flywheel
A magnetic motor generator that produces electric power by rotating a one piece magnetic floating flywheel assembly that is operated by a linear induction motor and repelled upward by a stationary...
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8030787 |
Mbackup flywheel power supply
A flywheel system includes a synchronous reluctance and a permanent magnet generator.
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8030815 |
Brushless motor having improved mounting plate
A brushless motor to be used for driving a vane pump, which is employed in a module for inspecting vapor leakage of fuel, is disclosed. The brushless motor includes a mounting plate having a...
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8030814 |
Device to relieve thrust load in a rotor-bearing system using permanent magnets
The present invention provides a device and a method to enhance thrust load capacity in a rotor-bearing system. The load-enhancing device comprises a stator and a rotor arranged in such as way as...
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8018106 |
Magnetic bearing device with simplified wiring
A magnetic bearing device and a method of operation for such a device are provided. The device comprises a group (410) of electromagnetic actuators (411, 412, 413, 414). Each actuator is...
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8018100 |
Permanent magnet motor having an axially magnetized pull magnet
A permanent magnet motor having an axially magnetized pull magnet consisting of a baseplate on which a stator lamination stack having stator windings is disposed, wherein a hub is disposed opposite...
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8004137 |
Electromechanical transformer
A system and method for moving an object is disclosed. In one aspect, there is a device for moving an object. The device comprises a penetrating structure comprising an externally threaded surface....
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8004136 |
Laying head with a vibration damping device
A laying head for forming coils using continuous and substantially rectilinear rolled products such as rods or wire, having vibration damping means integrated in one of two rotor supports (3),...
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7986066 |
Jacketed axial magnetic bearing
The invention relates to a jacketed axial magnetic bearing for a rotary machine having a rotor in contact with a gaseous atmosphere that is corrosive, acid, or carrying particles, the bearing...
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7982350 |
Conical magnets and rotor-stator structures for electrodynamic machines
Embodiments of the invention provide for conical magnets for rotors in electrodynamic machines, methods to design the same, and rotor-stator structures for electrodynamic machines. In various...
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7977838 |
Magnetic levitation motor and pump
A magnetic levitation motor including a stator having magnetic bearing units and a motor unit, and a rotor provided to the stator. And the occurrence of an eddy current at a magnetic bearing is...
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7977836 |
Single bearing motor with magnetic element
A single bearing motor comprises a fan blade set, a motor set and a fan blade base. The fan blade set has a fan blade hub to join with a spindle fitting with a bearing on the outside thereof. The...
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7977837 |
Rotary body used for energy storage apparatus, method of manufacturing rotary body, and energy storage apparatus
A rotary body used in an energy storage device and capable of storing a large amount of external energy is provided in an energy storage device that stores external energy as the energy of the...
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7977839 |
Magnetic bearing device and method
An energy-saving magnetic bearing device with no bias current for making the relation between the excitation current and the magnetic force of the electromagnet linear is provided. In a magnetic...
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7969054 |
Superconductivity utilizing support mechanism, and permanent magnet utilizing support mechanism
A superconductivity utilizing support mechanism comprises a superconductive coil and a ferromagnetic body. One of the ferromagnetic body, so constituted as to slide in a direction of a center axis...
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7952247 |
Electrical machine with magnetic bearing and safety bearing
In case there is a malfunction of the magnetic bearing in an electrical machine, in which such magnetic bearings drive a rotary shaft in a stator (10), a safety bearing (14,14′) is provided. A...
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7948131 |
Superconducting magnetic thrust bearing with integrated dynamotor
In a superconducting magnetic thrust bearing with integrated dynamotor, a first fixed core is formed to have a U-shaped cross-section in a direction of the central axis of the cylindrical shape...
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7944105 |
Synchronous machine having magnetic bearings excited by the rotor
A superconductive synchronous machine having superconductive magnetic bearings. A superconductor (6) on the stator side as a first bearing part is disposed opposite from a second bearing part (12)...
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7944104 |
Magnetic bearing apparatus
A magnetic bearing apparatus supports a rotating object using magnetic levitation by a magnetic force of electromagnets. The magnetic bearing apparatus includes a PWM driver configured to supply...
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7940150 |
Six-degree-of-freedom precision positioning system
In a six-degree-of-freedom precision positioning system, magnetic force and fluid buoyancy are used to levitate a platform, and the non-contact magnetic force between electromagnets and magnets...
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7934909 |
Device for axially conveying fluids
A device for axially conveying fluids, wherein the conveyor part thereof is entirely magnetically borne and the radial bearing thereof is provided with sufficient rigidity and efficiently dampened,...
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7936097 |
Electromagnetic propulsion system
An electromechanical propulsion system is disclosed. The propulsion system uses magnetic propulsion and magnetic bearings to move a vehicle. The propulsion system is well suited for use on land,...
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7932654 |
Motor
A motor is disclosed. In accordance with an embodiment of the present invention, the motor includes a stator and a rotor, which is supported by the stator such that the rotor rotates. Here, the...
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7932656 |
Magnetic bearing device
A magnetic bearing device includes a main shaft (13), a flange shaped thrust plate (13a) coaxially mounted on the main shaft so as to extend perpendicular to the main shaft and made of a...
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7932655 |
Magnetic bearing device with an improved vacuum feedthrough
A magnetic bearing device (1) with an improved vacuum-tight electrical feedthrough through its housing (10) is disclosed. The feedthrough (30) comprises a flat connection element (31) such as a...
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7928620 |
Device for safeguarding an uninterruptible power supply of a magnet bearing in the event of failure of an electrical supply voltage
The invention relates to a device for safeguarding uninterrupted power supply of a magnetic bearing (5) in the event of a power supply voltage (U) failure. Said device comprises: a first frequency...
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7914383 |
Mechanical transmission system with a magnetic damper for a rotorcraft
The invention relates to a rotorcraft transmission system that comprises both a transmission shaft (21), and electromagnetic induction members (30, 31) of an active magnetic damper that extend...
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7915774 |
Spindle motor
A spindle motor is provided. The spindle motor includes a base, a bearing housing, a bearing, a rotation shaft, a stator, a bushing, and a rotor. The bearing housing is installed on the base. The...
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7911101 |
Electric motor and an actuator having the same
In an electric motor of an SBW actuator, a rotor shaft is rotated upon energization of the motor. A rotor core is rotated integrally with the rotor shaft. A resilient member enables tilting or...
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