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JP2022551258A |
The bearing device is first and second bearing surfaces movable and facing each other and separated by a gap filled with a lubricant, the lubricant comprising a carrier fluid and particles, the particles being subjected to a magnetic fie...
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JP2022180212A |
To provide a technique advantageous for stabilizing a posture of a movable part by a simple constitution.A static pressure-guiding bearing includes: a movable part having a guide face, and a bearing face facing the guide face, and guided...
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JP2022180069A |
To suppress damage of a radial magnetic bearing when replacing a backup bearing.A bearing unit (U) includes: a drive shaft (13); radial magnetic bearings (21, 22) for supporting the drive shaft (13) so as to be rotatable; backup bearings...
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JP7175362B2 |
To downsize a radial magnetic bearing while maintaining suction force.A radial magnetic bearing 10 for supporting a rotating body 2 in a non-contact manner from an outside in a radial direction comprises a plurality of electromagnets 11 ...
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JP2022547387A |
The magnetic bearing device includes a stator 30 and a rotor 10 supported within the stator so as to rotate about a rotation axis R. The rotor comprises at least one permanent magnet 21, 22 magnetized along the axis of rotation. The stat...
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JP7164471B2 |
The present invention provides a control apparatus which is capable of realizing a magnetic bearing with reduced vibration and noise by preventing noise from contaminating a current controlled variable and which achieves cost reduction a...
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JP2022545850A |
In order to further improve the accuracy of the high precision machine tool (100), at least one linear drive bearing and guide bearing (1) is provided, which linear drive and guide bearing is connected to at least one linear motor (27), ...
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JP7162122B2 |
Turbomachine (100) having a turbo housing (56) and an impeller (1) which is mounted such that it can be moved about a rotational axis (30), which impeller (1) defines an inflow region (8) and an outflow region (9) of a working medium on ...
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JP2022162934A |
To provide a method for improving the lubricity of planetary transfer gears, electric motors, bearings, and other precision machined products.The present invention relates to improvement of smoothness by lowering the temperature of plane...
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JP7158815B2 |
A rotary table apparatus includes: a table part having a placement surface; a support part having a guide surface facing an opposing surface which is on an opposite side of the placement surface of the table part; an air film forming par...
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JP7155531B2 |
A magnetic levitation control device comprises: a control signal generation section configured to generate a first excitation current control signal based on current deviation information on the excitation current detection signal with r...
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JP2022544162A |
The present invention discloses a parallel connection bearing comprising a rotary shaft bearing and a stator bearing, wherein the rotary shaft bearing is a contact bearing and is fitted on the rotary shaft, the stator bearing is a non-co...
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JP2022157861A |
To provide a table device capable of increasing acceleration and deceleration of a movable stage by restricting an inclination of cylinder members accompanying movement of the movable stage.A table device 10 includes: a table 2 placed on...
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JP2022157857A |
To provide a gas bearing pad that can prevent seizure of a head part of a bolt on a base.A gas bearing pad 10 comprises: a body part 20 arranged on a base 11 comprising a guide surface 11a, and comprising a concave part 21 in an opposing...
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JP2022157859A |
To provide a linear motion guide device which can prevent deformation of a guide rail.A linear motion guide device 10 includes: an elongated guide rail 20; a slider 30 which is attached so as to be slidable along the guide rail 20; a pai...
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JP2022157858A |
To provide a linear motion guide device in which the position of a gas supply port for supplying compressed gas to a slider can be easily changed.A linear motion guide device 10 comprises a rail 11 extending in an axial direction, and a ...
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JP2022155811A |
To provide a centrifugal compressor that lowers impact from frictional heat that is generated between an auxiliary bearing and a rotational shaft.A centrifugal compressor includes: a rotational shaft (12); and a magnetic bearing (16) and...
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JP7149403B1 |
An object of the present invention is to enable equalization of pressure within a gap in which an air bearing is formed. The shaft member is arranged inside a tubular member included in the air bearing mechanism, and has a body portion h...
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JP2022146487A |
To reduce a load received by a bearingless motor or a radial magnet bearing in a motor system.A motor system (101) includes: a drive shaft (130) which rotationally drives a load (120); and a bearingless motor (170) and a radial magnet be...
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JP7148230B2 |
A vacuum pump and a controller are provided. The vacuum pump and the controller can perform accurate and stable control during a steady operation, are resistant to disturbance, and achieve a short pump stop time and size reduction. A pos...
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JP2022138513A |
To provide a toroidal type continuously variable transmission capable of solving the problem of gyroscopic sliding of balls associated with a thrust ball bearing and heat generation caused by the sliding.A toroidal type continuously vari...
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JP7137916B2 |
To provide an internal grinding device that is capable of grinding holes at both ends of a workpiece simultaneously and easily secures dimensional tolerance and geometric tolerance with high precision.An internal grinding device 1 for gr...
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JP2022135348A |
To provide a controller and a control method capable of determining a correction value simply and highly accurately without being affected by individual vibrations of motors.A control device for controlling a magnetic bearing attached to...
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JP7135786B2 |
To allow a winding core to be attached to a housing even when a fluidic coolant is used.The stator includes a housing and an annular winding core through which a shaft to be housed in the housing is inserted, and a holding ring to be att...
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JP2022539022A |
A plant and method for liquefying a gas stream, with an upstream end intended to be connected to a source (3) of pressurized gas to be liquefied and a downstream intended to be connected to a user component. The plant (1) comprises a coo...
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JP7130258B2 |
An electric machine includes a stator and a rotor. The stator includes a frame structure and an electromagnetically active part inside the frame structure. The rotor includes a shaft and an electromagnetically active part for producing t...
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JP7130731B2 |
The present invention provides a power supply system for a magnetic bearing and a control method therefor. The system comprises: a rectifying and filtering circuit (1) configured to rectify and filter an alternating current from an AC in...
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JP7130007B2 |
A self-centering bearing assembly is provided. The bearing assembly includes a magnetic bearing device configured to support a rotating shaft and a magnetic bearing support housing. The magnetic bearing housing has a disc-like shape and ...
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JP2022126592A |
To provide a cross-flow fan that enables a contactless magnetic levitation and a contactless drive of an impeller.In a cross-flow fan for generating a fluid flow with a cylindrical impeller 2, a first magnetically effective core 31 is pr...
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JP7127218B2 |
The present disclosure provides a magnetic suspension bearing stator, a compressor and an air conditioner. A frame (1) is provided with an accommodation recess (11) used to position an axial winding (3). A position-limiting portion (110)...
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JP7124060B2 |
A fluid bearing for directing optical fibers during manufacturing is presented. The fluid bearing provides a flow of fluid to levitate and direct an optical fiber along a process pathway. The opticalfiber is situated in a fiber slot and ...
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JP7123059B2 |
This pump device (10) comprises: a housing (30) including a fixed-side repulsive magnet (66); and an impeller (14) that is rotatably housed inside the housing (30) and that includes a movable-side repulsive magnet (56). The movable-side ...
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JP7122423B2 |
An actuator 10 includes a guide 12 that extends in one direction and a slider 20 that is movable in an axial direction with respect to the guide 12. Either the guide 12 or the slider 20 has a recessed cross-section, and the slider 20 is ...
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JP7119312B2 |
A first arithmetic section calculates a current rotation component phase value and a current rotation component amplitude value. A second arithmetic section calculates a displacement rotation component phase value and a displacement rota...
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JP2022536225A |
A compact gas compressor comprising a) one or more centrifugal compressors and b) a high speed axial permanent magnet synchronous electric motor. The electric motor and the compressor are directly coupled on a single axis, supported by p...
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JP2022112973A |
To miniaturize a structure for reducing a thrust load of a dynamic pressure bearing in a pump device configured so as to reduce the thrust load of the dynamic pressure bearing by suction force of a magnet when dynamic pressure of the dyn...
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JP2022108920A |
To provide a spindle device capable of reducing a load applied to a static pressure gas bearing.A spindle device includes a rotation shaft, a chuck table, a static pressure gas bearing, and a magnet coupling. The rotation shaft includes ...
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JP7104344B2 |
A coil (20) is formed by winding a conductive wire. A core (30) houses the coil (20). The core (30) is provided with a refrigerant inlet (61) and a refrigerant outlet (62). A refrigerant flow path (65) connecting the refrigerant inlet (6...
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JP7097302B2 |
A rotor (5) for a high-speed electrical machine comprises a rotor shaft (51), the shaft (51) comprising a rotor core (55) and a rotor sleeve (56). A compensation element (57) is arranged between the rotor core (55) and the rotor sleeve (...
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JP2022099433A |
To provide a wave surface float power generator capable of generating power by waves on the water surface.A wave surface float power generator includes: a housing for a buoy including closed space inside; a shaft arranged in the space; a...
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JP7093758B2 |
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 technology into an open-core flywheel architectu...
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JP7093683B2 |
A magnetic bearing controller for controlling a magnetic levitation motor, the magnetic levitation motor including: a rotor; a pair of electromagnets that causes the rotor to levitate by electromagnetic force; an auxiliary bearing that s...
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JP7090246B2 |
To provide a slider capable of suppressing warping due to drying, a stage device, an industrial machine, and a method of suppressing the warping of the slider.On an outside surface of each block configuring a Y-axis slider 70B made of st...
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JP2022529790A |
The present invention is a linear guideway assembly for non-contact linear displacement of one rigid body with respect to another rigid body along a linear displacement path (x), and is formed as a linear guideway defining the linear dis...
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JP2022091290A |
To provide a structure for cooling a bearing device.A cooling structure of a bearing device 2 includes a shaft 70, and a radial bearing 120 rotatably supporting the shaft 70. The shaft 70 includes an introduction passage 71 opened to an ...
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JP7085441B2 |
A damper bearing includes: a bearing portion that supports a rotary shaft; and a tubular portion located around an outer circumference of the bearing portion, the tubular portion having a predetermined radial thickness and having an oute...
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JP2022082849A |
To provide an axial flow blower that can rotate at a high speed in a stable state.An axial flow blower 100 comprises a cylindrical casing 6, and a pair of bearing holding parts 19 and 20 fixed to both ends of the casing 6, and holding a ...
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JP7080318B2 |
A magnetic bearing device for magnetically suspending a rotor (22) for rotation about a rotation axis (A) comprises an amplifier device, a first main coil (p) and a second main coil (n). In order to compensate for a stray flux that is cr...
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JP2022082725A |
To provide a magnetic bearing control device configured to reduce disturbance.A magnetic bearing control device comprises a bearing control system, a radial direction translation displacement command control system, and an optimal phase ...
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JP2022079358A |
To suppress the leakage of magnetic flux while ensuring the coaxiality of a rotor with respect to a pair of bearings.A first air bearing 21 supports a portion of a tubular portion 34, which protrudes in the axial direction with respect t...
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