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JP2016095024A |
To provide a bearing device which inhibits abnormality from being caused by a static load received thereby to achieve long bearing life, and to provide a mechanical device and a bearing.A bearing device 1 includes a bearing 30 including ...
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JP2015230014A |
To provide a magnetic joint which transmits torque in a non-contact manner, and which can apply a proper preload to bearings which support a driven shaft.This magnetic joint 30 comprises: a pair of discs 31, 32 whose disc faces oppose ea...
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JP5534875B2 |
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JP5363357B2 |
A magnetic levitation apparatus supports a magnetic element in a magnetic field. A control system controls a variable magnetic field to maintain the magnetic element at an equilibrium location relative to an unstable axis. In some embodi...
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JP5345779B2 |
A method and a controller for controlling a magnetic bearing device, in which a rotor is suspended for rotation around a shaft, are disclosed. Sensor signals are transformed to yield tilt displacement signals (S¸x, S¸y) which correspon...
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JP5334824B2 |
To reduce a load placed on a bearing used in a rotary machine by suppressing centrifugal decentering which is caused when a shaft of a motor is rotated, whereas a conventional bearing involves a rapid temperature change by heating by fri...
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JP5329881B2 |
The unloading unit has a disk-shaped throttle element (11) that extends to an annular space (10). A thrust compensation ring (3) and the throttle element are arranged such that one of the ring and the throttle element is fixed in an axia...
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JP5230938B2 |
The pump has delocalized external electrical circuits (191,192) associated to axial (103) and radial (101,102) magnetic bearings. Control circuits (194) are arranged inside an enclosure in a vacuum chamber (116). An electrical connector ...
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JP5192629B2 |
The invention relates to an economical, non-wearing, electrical permanent magnet drive for actively controlling the rotor position in three degree of freedom. The stator windings produce superimposed fields with different pole numbers in...
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JP5178294B2 |
An electric turbo compressor is an air compressor to be used in a fuel cell system, and includes a housing comprised of a compression casing, a motor casing, and a canceller casing, and the housing houses therein an impeller, a rotary sh...
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JP5113313B2 |
A magnetic bearing has two bearing members each of which carries a set of bearing elements. The bearing elements carried by one member are interleaved with the bearing elements carried by the other member to define three or more substant...
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JP5069103B2 |
A method of controlling the instability in fluid film bearings by using a magnetic bearing in combination with a fluid film bearing (whether it is a cylindrical journal bearing, an elliptic bearing, an offset-half bearing, a multi-lobe b...
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JP2012177480A |
To provide a method of controlling the instability in fluid film bearings by using a magnetic bearing in combination with a fluid film bearing.The fluid film bearing 18 serves as the primary load carrying bearing and the magnetic bearing...
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JP4980386B2 |
PCT No. PCT/US97/04277 Sec. 371 Date Feb. 24, 1998 Sec. 102(e) Date Feb. 24, 1998 PCT Filed Mar. 19, 1997 PCT Pub. No. WO97/36361 PCT Pub. Date Oct. 2, 1997A method of damping resonances in a rotating system is disclosed, which includes ...
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JP4975229B2 |
A bearing assembly includes at least one and preferably two ball tracks each having a load-bearing portion, a return portion, and a turnaround portion, and a plurality of bearing balls, wherein the ball track is configured for the guided...
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JP4966359B2 |
A magnetic thrust compensator for a mechanical thrust bearing includes a parallel operating axial magnetic bearing including a stator including two parallel stator extensions (4,5,6), a rotor disk (1,2,3) situated between the two stator ...
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JP4956700B2 |
A system for pumping or mixing a fluid using a levitating, rotating pumping or mixing element and various other components for use in a pumping or mixing system as disclosed. The pumping or mixing element is placed in a fluid-containing ...
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JP4934776B2 |
A kit for assisting in the set-up of a fluid pumping or mixing system including a superconducting element capable of reaching a transition temperature during a field cooling process is disclosed. In one embodiment, the kit comprises at l...
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JP4928554B2 |
A floating bearing has a rotating, rotationally symmetric machine part (6), with an outer ring (10), which is non-rotatably supported in an intermediate bearing (1) that is located in the installation space of a housing (3, 8). An inner ...
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JP4920629B2 |
To provide a non-contact part cooling device for securing a heat transfer amount in no contact under a low-temperature and low-pressure lean gas atmosphere. A superconductive magnetic bearing cooling device has: a power storage flywheel ...
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JP4904251B2 |
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JP4892189B2 |
The invention concerns an inertial sensor or an actuator based on diamagnetic levitation, said inertial sensor or actuator comprising support means serving as main support body for an inertial sensor or for an actuator, a two dimensional...
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JP2012013081A |
To provide a method and system of actively controlling, in real-time, a thrust load experienced by a rotor (130).The rotor (130) can have the form of a single or multi-part shaft, upon which rotatable components are mounted. Embodiments ...
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JP4768712B2 |
An active magnetic bearing (100) with autodetection of position, the bearing comprising at least first and second opposing electromagnets (120, 130) forming stators disposed on either side of a ferromagnetic body (110) forming a rotor an...
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JP4767853B2 |
A magnetic bearing device (1) for rotatably supporting a shaft (20) for rotation about a rotation axis (101) is disclosed. The device (1) comprises a first active radial bearing (5), one or more first radial displacement sensors (81), an...
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JP4767954B2 |
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 electrically connected to an amplifier unit (701)....
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JP4750965B2 |
A magnetic levitation motor (1) has a rotor (10) with a rotor magnet (12) magnetized in multiple poles, and a stator (20) with rotor driving coils (26) disposed confronting to the rotor magnet for generating a rotational torque on the ro...
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JP4727708B2 |
A journal bearing which can be constructed without leading to decrease in rigidity and increase in size, in which lubrication oil can be supplied to the bearing surfaces of the pads with certainty. The journal bearing 10 having a bearing...
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JP4685449B2 |
A magnetic levitation apparatus supports a magnetic element in a magnetic field. A control system controls a variable magnetic field to maintain the magnetic element at an equilibrium location relative to an unstable axis. In some embodi...
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JP4662539B2 |
A device for contact-less measurement of distances (10, 20) in multiple directions of a ferromagnetic or conductive body (2, 22) comprises a plurality of inductive elements (1, 4, 7). At least one (1) of the plurality of inductive elemen...
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JP2011043171A |
To provide a shaft support structure of a rotating body which supports a shaft so as to be stably and accurately rotatable around the vertical shaft in a state that the heavy weight rotating body is offset or reduced in its thrust load.T...
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JP4638028B2 |
There is described a support system enabling supporting an object such as a platform (1) free from vibration, in that bearing elements (50) have a stiffness (k) which at a working point (z0) equals zero. A bearing element (50) comprises ...
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JP4612926B2 |
To provide a magnetic levitation type pump capable of miniaturizing a magnetic bearing part. This magnetic levitation type pump 1 is composed of a motor part 10, a pump part 20 and a magnetic bearing part 40; the magnetic bearing part is...
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JP4612954B2 |
A tube pump in which the rotor is axially supported by permanent magnets at each end, so arranged as to apply attractive force across the gap between the rotor and a stator such that permanent magnets provide the sole radial support for ...
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JP4602497B2 |
A bearing system and a spindle motor assembly adopting the same are provided. The bearing system includes a lower base on which a fixed shaft is installed, a cylindrical body fit on the fixed shaft, first and second magnetic bodies insta...
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JP2010270783A |
To provide a balancer-shaft-supporting bearing unit capable of protecting a roller bearing, by receiving an impact load acting on a driven gear of the balancer shaft from a driving gear of a crankshaft by a sliding contact part.The balan...
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JP4588023B2 |
A wave gear device, wherein, when a wave generator is in a low speed rotating state, a rolling bearing state is formed by a wave bearing and the wave generator and a flexible external gear are held in a relatively rotatable state and whe...
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JP4566818B2 |
A microelectromechanical system (MEMS) sensor and method for measuring the motion of an intermediate member and a method for making the MEMS sensor. The MEMS sensor includes a substrate, a lower magnetic member disposed on the substrate,...
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JP4554204B2 |
To eliminate unwanted vibrations caused by synchronous disturbances, such as synchronous disturbances caused by an imbalance, for example, the invention proposes a compensation device for closed loop compensation of a synchronous disturb...
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JP4502667B2 |
Provided are: a magnetic bearing device capable of reducing the costs required for the manufacture, installation, or the like of a turbo molecular pump by reducing the number of elements of an amplifier circuit that drives, through excit...
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JP4484320B2 |
The control unit (4) is designed such that the individual control magnitudes for each drive winding (61, 62) and for each control winding (71-74), are fully mutually-independent.
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JP4476694B2 |
A magnetic bearing apparatus (107) has an electromagnet (107b) having a coil for levitating a rotatable member (107d) by a magnetic force and a control device (19) to adjust a gain for levitation control of the rotatable member (107d). T...
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JP4473470B2 |
The centrifuge has a rotor device (1) for reception of the material, supported by at least one magnetic bearing (3,4) for rotation about the rotor axis via a drive, providing a magnetic force acting on at least part of the rotor device. ...
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JP2010514991A |
A magnetic levitation control system (100) includes a sensor (106) configured to measure a gap between an electro magnet and a stage and generate a gap measurement signal. A gap filter (112) is configured to receive the gap measurement s...
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JP4455004B2 |
A plurality of preload magnet units (122,132) are arranged on each side of a hydrodynamic bearing (121,131) symmetrically. Preload magnet units (222,232) are arranged inside a labyrinth partition (26,27) to surround the hydrodynamic bear...
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JP4447866B2 |
The device has a housing and a shaft in the housing rotatable about its longitudinal axis, carrying a turbine wheel and a compressor wheel and mounted in magnetic radial bearings and at least one axial bearing. The bearings each have a b...
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JP4431825B2 |
The invention concerns a magnetic guiding device ( 1 ) having at least one element ( 2 ) to be guided magnetically in the axial direction, e.g. a shaft or an actuation member that is movable in the axial direction, the element ( 2 ) havi...
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JP4427938B2 |
In axial magnetic bearing apparatus in which a rotary disc made of a magnetic material is fixedly attached to a rotating shaft, and electromagnets are disposed on opposite sides of the rotary disc so as to have suitable very small distan...
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JP4426049B2 |
A magnetic bearing device, comprising at least a touch down bearing and corrugated damping members inserted into an annular clearance between the bearing and a holding member thereof, the corrugated damping members being held continuousl...
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JP2010043741A |
To provide a bearing device for a machine table equipped with a stator 01 and a rotor 03 movable relative to the stator 01 and having a rolling bearing 05 and a magnetic bearing 07 to reduce the load of the rolling bearing by a magnetic ...
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