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9041266 Magnetic bearing structure and turbo machine having the same  
Disclosed is a magnetic bearing structure including a permanent magnet, levitating a rotation body without a bias current, and easily magnetizing the permanent magnet. The magnetic bearing...
9041265 Magnetic bearing device  
Provided is a magnetic bearing device capable of facilitating manufacture of the magnetic bearing device and improving precision in production thereof while maintaining eddy current reducing...
9041267 Preload control device of magnetic bearing  
The present invention provides a preload control device of a magnetic bearing, which includes a main shaft, a housing, a first magnetic bearing mechanism, a second magnetic bearing mechanism, a...
9030070 Magnetic and/or electrostatic pivot  
A method and device for orienting a timepiece component on both ends of which two magnetic/electrostatic fields each attract it onto a pole piece, with an unbalance in the intensity of the fields...
9024488 Robot drive with magnetic spindle bearings  
A drive section for a substrate transport arm including a frame, at least one stator mounted within the frame, the stator including a first motor section and at least one stator bearing section...
9024494 Mechanical backup bearing arrangement for a magnetic bearing system  
The present disclosure describes a mechanical backup bearing system arrangement to work in conjunction with non-contact magnetic bearings and capable of coping with thermal expansions of the...
9024493 Method for on-line detection of resistance-to-ground faults in active magnetic bearing systems  
A magnetic bearing is disclosed that includes a sensing wire wrapped around one or more of the bearing coils and configured to measure the resistance to ground of each bearing coil. With the...
9006948 Hybrid pole bearingless SRM  
Disclosed is a hybrid pole bearingless switched reluctance motor (BLSRM). The BLSRM includes a stator provided with windings, a rotor rotating about an axis when current is conducted to the...
9006914 Electromagnetic device for generating electrical current and methods thereof  
An AC current generator for generating an CA current and method therefor and includes a stator and a rotor. The stator includes an outer shell of non-magnetic material enclosing an evacuated...
9000636 Magnetic bearing apparatus  
A magnetic bearing apparatus is proposed having a stator (2) which includes a winding (22) for the generation of a magnetic control field, having a rotor (3) which can be magnetically journalled...
9000642 Corrosion-resistant jacketed active magnetic bearing  
In a jacketed active magnetic bearing for a rotary machine having a rotor in contact with a process gas, there is provided a magnetic bearing comprising a bearing armature of laminated magnetic...
8994235 Electric motor for a small electric device  
An electric motor for operating a small electric device is disclosed. The electric motor includes at least one first oscillatory motor component; an inductor for producing a magnetic field; and a...
8994237 Method for on-line detection of liquid and potential for the occurrence of resistance to ground faults in active magnetic bearing systems  
A resistance to ground monitoring system for a magnetic bearing is disclosed. The system includes a dummy bearing arranged in a cooling loop and having a dummy bearing coil made up of an...
8987959 Split magnetic thrust bearing  
A magnetic bearing thrust stator is provided including, a plurality of stator sectors. Each of the stator sectors includes a semi-circumferentially slotted stator portion including a plurality of...
8970079 Method for adjusting resistance of electromagnet in magnetic bearing and for sensorless determination of position of object mounted in magnetic bearing, taking into account adjusted value of resistance  
For an object on a bearing mounting having a magnetic bearing providing a magnetic field generally produced by an electromagnet, the bearing is regulated based on a position of the object relative...
8963393 Magnetic thrust bearings  
Rotating machines and magnetic thrust bearings therefor are disclosed. Magnetic thrust bearings may include a rotor core configured to extend coaxially around a shaft of a rotating machine, a...
8946958 Energy storage system comprising a flywheel  
An energy storage system is generally disclosed. An example system includes a flywheel having a substantially cylindrical flywheel portion, and a housing defining a substantially cylindrical...
8941278 Method and apparatus for hybrid suspension system  
A system for suspending a rotating body consisting of a combination of magnetic and engineered materials. The suspension system allows for some axial motion to account for varying system loads.
8931710 Rotary atomizer having electro-magnetic bearings and a permanent magnet rotar  
An improved rotary disc atomizer for use in, for example, spray dryers or congealers is disclosed. The rotary disc may be directly mounted to the shaft of a high-speed electrical motor. The...
8922081 Nested-rotor open-core flywheel  
Methods and apparatuses are disclosed for incorporating a plurality of independently rotating rotors made from high-strength materials with a high-temperature superconductive (HTS) bearing...
8896174 Active magnetic bearing  
An active magnetic bearing includes a bearing housing, a bearing stator, a bearing armature, a position detector, a jacket, and a stress buffering member. The bearing stator is accommodated in the...
8890383 Bearing having a power generation unit  
A bearing, which has a first bearing ring, a second bearing ring, a rolling element interposed between the two bearing rings and a claw pole generator-type power generation unit. The bearing has a...
8875380 Process of forming an encapsulated magnet assembly  
A process of forming an encapsulated magnet assembly is provided, the process comprising welding a second portion of a housing cover formed of a non-magnetic material to a first portion of a...
8875382 Method of assembling superconductor bearing  
A method for assembling a superconducting bearing, wherein the superconducting bearing has a first bearing ring including a first body made of a type-2 superconducting material and a second...
8878408 Bearing having a power generation unit  
A bearing, which has a first bearing ring, a second bearing ring and a claw pole generator-type power generation unit. The bearing has a substantially space-neutral power generation unit, which...
8850989 Magnetic levitation assembly  
A method and system for transportation using a magnetic bearing structure is disclosed. In one aspect, there is an apparatus for carrying a load along a magnetizable structure. In one embodiment,...
8853905 Radial direction controller and magnetic bearing apparatus utilizing same  
Provided is a radial direction controller capable of handling changes in negative bearing stiffness according to the mounting orientation. This radial direction controller, which is a magnetic...
8847450 Encapsulated magnet assembly and process for making  
The present invention provides an encapsulated magnet assembly, comprising (a) a magnet disposed within a housing, said housing comprising at least one wall and defining at least one aperture; and...
8847451 Combination radial/axial electromagnetic actuator with an improved axial frequency response  
A first bias magnetic flux may be communicated between a first axial pole and a first axial facing surface of the body. A second bias magnetic flux may be communicated between a second axial pole...
8836183 Rotating machine provided with coil and method of producing the rotating machine  
In a rotating machine, a recording disk is mounted on a hub. A base rotatably supports the hub through a bearing unit. A core is fixed to the base and includes an annular portion and a salient...
8836178 Linear vibrator  
Disclosed herein is a linear vibrator, including: a stator including a coil; and a vibrator including a magnet opposite to the coil, wherein the linear vibrator is linearly vibrated due to...
8836190 Magnetic bearing, a rotary stage, and a reflective electron beam lithography apparatus  
A magnetic bearing (108) with an axis of rotation (106), wherein the magnetic bearing comprises: a cylindrical rotor (116) comprising a ferromagnetic material (118, 338, 440) wherein the...
8827663 Rotary stability of a rotary pump  
A rotary pump including an impeller rotatable within a housing. A load is imposed on the impeller as it rotates, in a direction that is substantially parallel to the axis of rotation and wherein...
8823233 Passive magnetic bearing system  
An axial stabilizer for the rotor of a magnetic bearing provides external control of stiffness through switching in external inductances. External control also allows the stabilizer to become a...
8803392 Axial magnetic suspension  
The present invention generally relates to an apparatus and method for axially supporting a shaft. In one aspect, a magnetic suspension system for supporting a shaft in a housing is provided. The...
8796894 Combination radial/axial electromagnetic actuator  
An electromagnetic actuator includes a body and first and second poles residing apart from the body. The first and second poles communicate magnetic flux across a gap with opposing end facing...
8791613 Advanced flywheel and method  
A flywheel levitation apparatus and associated method are described for use in a flywheel driven power storage system having a rotor and which provides for an upward vertical movement of the rotor...
8772992 Airfoil-magnetic hybrid bearing and a control system thereof  
An airfoil-magnetic hybrid bearing, which is a combination of a magnetic bearing and airfoil bearing includes a housing, an airfoil bearing, a magnetic bearing, coils, and a coupling segment. The...
8760021 Centrifugally decoupling touchdown bearings  
Centrifugally decoupling mechanical bearing systems provide thin tensioned metallic ribbons contained in a support structure. This assembly rotates around a stationary shaft being centered at low...
8727626 Method and device for adjusting the bearing play in a ceramic hybrid bearing  
A method and a device for adapting a bearing clearance in a ceramic-hybrid bearing having rolling elements in the form of balls or rollers made from a ceramic material and an outer and an inner...
8729759 Spindle motor  
A spindle motor according to an aspect of the invention may include: a base on which a sleeve is mounted; a rotor bound together with a shaft rotatably mounted on the sleeve and rotating by...
8729758 Rotational machine, method for the determination of a tilting of a rotor of a rotational machine, as well as a processing plant  
A bearing-free engine includes a bearing and drive stator having a magnetic stator plane and a magnetic rotor having a magnetic rotor plane and supported magnetically in contact free manner within...
8724257 Hydrodynamic bearing apparatus and spindle motor and disk drive apparatus including the same  
A bearing apparatus includes an upper annular portion that has a circular or substantially circular ring shape, and is arranged to project radially outward from a stationary shaft. One of an upper...
8696331 Pump with magnetic bearings  
A pump unit includes a motor, a pump, a shaft spanning the motor and the pump, and at least a first magnetic bearing supporting the shaft. A hydrocarbon production system includes an underwater...
8688345 Electric motors  
An electric motor includes one or more separate coil sets arranged to produce a magnetic field of the motor. The electric motor also includes a plurality of control devices coupled to respective...
8648509 Stabilizing power source for a vehicle  
A power source for a vehicle includes at least one toroidal ring positioned in a housing. The toroidal ring includes magnetic material such as permanent magnets. The toroidal ring is magnetically...
8633625 Shaft-less energy storage flywheel  
Embodiments of the present invention include a shaft-less energy storage flywheel system. The shaft-less energy storage flywheel system includes a solid cylindrical flywheel having permanent motor...
8618707 Magnetic bearing with high-temperature superconductor elements  
A magnetic bearing with high-temperature superconductor elements which has a stator and a rotor, which is held such that it can rotate with respect to the stator and is mounted in an axially and...
8610323 Bearingless machine  
A rotating machine comprises a stationary subassembly, a rotating subassembly, and a first circumferential track. The stationary subassembly includes a plurality of stator elements disposed...
8610322 Magnetic bearing and method for operation thereof  
The invention relates to a magnetic bearing and to a method for operation thereof. The magnetic bearing contains a ferromagnetic, movably mounted bearing element (1) and at least two magnetic...