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WO/1992/015795A1 |
The invention concerns a magnetic-bearing cell (1) of rotationally symmetrical construction which includes a rotor (2) with two permanent ring magnets (5, 6) and a stator (3) with a damping disc (27) projecting into the gap (26) between ...
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WO/1992/014271A1 |
A superconducting composite is made of a Type II superconductor powder dispersed in an acrylic thermoplastic matrix in a ratio between 1:1 and 3:1 by volume. The superconducting composite is particularly useful in magnetic journal and th...
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WO/1992/012566A1 |
Flywheel-based energy storage devices are provided along with methods for their use and fabrication. The devices have the capacity to store electric energy as kinetic energy and to generate electric energy from the stored kinetic energy....
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WO/1992/011504A1 |
A magnetic bearing (10) is provided which may be utilized in a fine position control or movement system. Stability is enhanced by providing separate mechanisms for supporting the weight of a platen (12) or other object being controlled w...
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WO/1992/011471A1 |
An axial magnetic bearing (10) includes a rotor (16) overlying a coil (32) in a stator (22). A second coil (40) is disposed at a location where it does not exert a significant force on the rotor (16). The second coil (40) generates a mag...
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WO/1992/010871A1 |
A magnetic bearing having a rotatable member (100) and a stationary member (106) on one of which is mounted a superconductor (104) while on the other is mounted a set of permanent magnets (108, 109, 110, 111) or electromagnets arranged a...
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WO/1992/002738A1 |
Laminated stator and rotor components for a magnetic thrust bearing each comprises a plurality of generally radially directed laminations (10) whose roots lie along the axis of rotation of a shaft located by said bearing and whose distal...
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WO/1992/002737A1 |
Laminated stator (15, 16) and rotor components (11) of a magnetic thrust bearing comprise a plurality of generally radially disposed laminations (2) fixed at their inner end to a cylindrical hub (3), the laminations all being curved in t...
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WO/1992/001096A1 |
A shaftless open-end spinning rotor, designed as the armature an axial field motor, and a stator have plane, parallel bearing surfaces for a combined magnetic/gas bearing. To ensure smooth running in critical operating conditions because...
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WO/1992/001097A1 |
A shaftless open-end spinning rotor, designed as a rotor of an axial field motor, and a stator have plane, parallel bearing surfaces for a combined magnetic/gas bearing. Magnets which guide and drive the spinning rotor are incorporated i...
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WO/1992/001167A1 |
Pivot bearing arrangement comprising a rotary shaft (6), a bearing housing (2), at least one pivot bearing and at least one cylinder/piston unit fitted between the shaft and the bearing housing and connected thereto. Each cylinder/piston...
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WO/1991/017368A2 |
The object of the invention is a device for insulating a body on magnetic bearings from the vibration of its stator and hence the environment and vice versa. It may especially concern a rotor (3) which can produce undesirable vibrations ...
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WO/1991/014876A1 |
A magnetic bearing (10) has a number of pole pieces (14) disposed about the circumference of the shaft (40) supported by the bearing. To inhibit magnetic flux migration within the bearing, magnetic barriers (34) of non-magnetic material ...
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WO/1991/014875A1 |
A rotary electrical machine comprises a rotor assembly (37) and a stator assembly (12, 14, 28) separated by an air gap (36). One of the assemblies is formed from discrete generally pie-shaped pole pieces (14) having a progressively incre...
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WO/1991/010073A1 |
According to the invention, a magnetic suspension of a high-speed shaft comprises a device (1) for stabilizing the position of the shaft (2) in relation to a casing (3) in the axial direction, and devices (4, 5) for stabilizing the posit...
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WO/1991/004525A1 |
A portable crash-survivable kinetic energy storage machine (40) comprises a freely rotating flywheel (29) formed of composite material, evacuated interior bulkhead (18-20) and an outer bulkhead enclosing the flywheel (29), superconductiv...
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WO/1991/002353A1 |
A record player of an audio system, wherein vibrations (noise and rumble) generated by the mechanical drive shaft of a turntable is completely removed and acoustic distortion and noise generated by the vibration are suppressed throughout...
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WO/1990/015032A1 |
The invention relates to a spinning wheel unit in a device for the fibration of mineral melt by means of centrifugal forces. The spinning wheel unit comprises a spinning wheel shaft (1) with associated spinning wheel (2), a drive motor (...
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WO/1990/014525A1 |
A magnetic bearing structure is provided for supporting a rotatable member in suspended position relative to a stationary member (10) including axially spaced apart rings (22) associated with the stationary member (10), which hold a plur...
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WO/1990/010161A1 |
A device for balancing axial thrusts in turbo-engines is designed as a separate self-contained structural unit and has axial bearings (9, 11; 10, 12) and/or radial bearings (17, 18). At the same time, the gaps between the axial bearings ...
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WO/1990/003524A1 |
A bearing system that includes a superconductor bearing and a magnetic rotor that can carry a load. The bearing system exploits the Meissner effect to levitate the magnetic rotor. The magnetic rotor can rotate or translate with respect t...
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WO/1990/003684A1 |
An electric machine (10) that includes a superconductor bearing (12) to position and levitate a magnetic rotor (18). The machine (10) also includes an armature circuit (26, 28) that is electro-magnetically coupled to the rotor (18), and ...
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WO/1990/001122A1 |
The electromagnets of an electromagnetic bearing are controlled by (a) deriving a first shaft position signal, (b) limiting the signal to a control range, (c) deriving a second, substantially independant shaft position signal, (d) proces...
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WO/1990/000722A1 |
In a linear guide for precision machines, the linear bearing of the mobile bearing element (2) which moves relative to the stationary bearing element (1) is achieved by means of magnetic bearings (3, 5) or air bearings (9, 11). The drive...
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WO/1989/012178A1 |
Bearing for radially and axially holding a rotor (10) with large radial dimensions on a stator (1), the rotor (10) being stabilized around its tilting axes (X, Y). To determine the tilting angle, the tilting axes (X, Y) are each provided...
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WO/1988/009078A1 |
The apparatus is comprised of a wheel (2) which is shaped like a disk. Facing the upper surface of said wheel (2) there is a magnet (4). An electric curent circulates in a solenoid to cancel the weight effect.
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WO/1988/007842A1 |
A fully implantable axial flow blood pump (10) having a magnetically suspended rotor (16) in which both alignment and torque are provided by a pair of axially spaced sets of stator armatures (18) and corresponding permanent magnets (50) ...
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WO/1988/006247A1 |
Rotary machine which comprises a housing having a low-pressure side and a high-pressure side (3) and incorporating working-fluid inlet and outlet channels, at least one rotor (7) urged by the working fluid towards the low-pressure side, ...
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WO/1988/005916A1 |
The wind-vane comprising a shaft (8a, 8b) provided with a tail and rotatingly mounted about a vertical axis (1) by means of a magnetic bearing (2a, 2b). The magnetic bearing is threaded on the vertical axis (1) and it is comprised of a l...
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WO/1988/002073A1 |
The device which enables suppression of the swinging motion of the rotor in an electromagnetic bearing controller is provided with a selection pick-up means in a servo circuit which, in response to X-directional displacement signal and Y...
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WO/1987/000360A1 |
Rotary machine provided with a rotor having an armature of an electric radial field machine of which the design enables to absorb the radial bearing forces exerted on the rotor, and armature of an axial field machine of which the design ...
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WO/1986/001862A1 |
A controlled radial magnetic bearing device has control circuits (7X, 7Y) which control the magnetic force of electromagnets (2) that magnetically support a rotary shaft (1), responsive to outputs of position sensors (5X, 5Y) that detect...
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WO/1986/001434A1 |
Combined hydrostatic/hydrodynamic bearing system for a grinding apparatus in which the material is ground in a grinding space defined between a pair of relatively rotating grinding members and in which at least one of the grinding member...
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WO/1985/005417A1 |
A controlled radial magnetic bearing device, which consists of a revolution number detector (14) for detecting the rotational speed of a rotary shaft (1) with respect to X-axis and Y-axis control circuits 7X, 7Y, which are adapted to con...
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WO/1984/001802A1 |
The magnetic bearing which is rapidly formed comprises a radially passive storage and an axially active regulation. By using only four sensor devices and three regulating amplifiers, a magnetic bearing is obtained which enables, in addit...
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WO/1984/000198A1 |
The magnetic bearing is comprised of two opposite parts arranged along the axis of the rotor. Those two parts allow to adjust the position of the rotor while taking into account the lateral deviations of the axis with respect to a refere...
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WO/1982/003666A1 |
A method and a means for the sealing of a bearing space (29; 33) formed in hydrostatic or aerostatical bearings and adapted to receive a fluid. By means of the invention it is made possible to provide a resulting force operating in a det...
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WO/1982/003176A1 |
A novel pump apparatus and method, the pump (10) including a magnetically suspended and rotated impellor (20) inside the pump housing (12). A novel sensor system (34, 35) detects the position of the impellor (20) and thus provides the ne...
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WO/1979/000987A1 |
A magnetic bearing comprises permanent ring-shaped or disc-shaped magnets (4 to 7, 8 to 11), arranged in a corresponding manner on a rotor (1) and a stator (2) so that magnetic repulsion forces are generated providing passive stabilizati...
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JP7422729B2 |
A pump device (10A) is provided with an impeller (14) and a housing (26). The housing (26) includes a fixed-side repulsion magnet (44) arranged in such a way as to encircle an internal space (32) inside an outer circumferential wall (40)...
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JP7123954B2 |
A joint for the oscillating connection of the rotary shaft of a wind turbine includes a box-shaped hub defining a longitudinal axis and having a pair of holes longitudinally opposite and aligned with each other, a shaft head adapted to b...
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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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JP7014465B2 |
The present disclosure relates to a bicycle hub, and more particularly, to a levitating bicycle hub coupling structure using a magnet in the internal contact structure in order to upgrade the levitating non-contact type structure to redu...
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JP6892004B1 |
To provide an electric motor system capable of suitably controlling the position of a drive shaft by a pair of magnetic bearing portions facing each other and supporting the drive shaft. An electric motor system 10 detects an axial posit...
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JP6803831B2 |
A flywheel (6) is provided that comprises a rotatable shaft (7). At least one end of the rotatable shaft (7) is provided with a recess (51) and two magnets (15, 20, 31, 36). The flywheel (6) is provided with support means (18, 23, 34, 39...
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JP6802028B2 |
A rotary machine (10) comprises a stator (12) having a stator casing (18), and a rotor shaft (16) having a rotational axis (X-X) and supported in said stator casing (18) by at least one radial magnetic bearing (20, 22). The rotary machin...
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JP2020026865A |
To provide a rotation device having a preload mechanism for a bearing capable of appropriately changing the level of the preload.The rotation device includes a shaft 4, a bearing 8 which supports a part at one end of the shaft 4, a magne...
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JP6626233B1 |
To reduce rolling resistance of a bearing by utilizing fluid pressure. A fluid pressure-applied portion 13 is formed in the middle of a shaft body 12 in the axial length direction, and both sides of the fluid pressure-applied portion 13 ...
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JP6170871B2 |
To provide a cooling device made of a superconductive material for a floating body and capable of shortening the cooling time period of the floating body of the superconductive material.A cooling device comprises: a superconducting bulk ...
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JP2017089384A |
To provide an electric turbo type compressor capable of decreasing a manufacturing cost and downsizing.A high-pressure chamber 9 can apply pressure inside on at least a part 31R of a rotary shaft 31 against a thrust F1 of an impeller 50....
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