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WO/2002/095103A1 |
Disclosed is a galette for guiding at least one thread, comprising a hollow cylindrical outer galette casing. The hollow cylindrical outer galette casing is freely rotatably mounted on a carrier by means of several bearings. At least one...
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WO/2002/088548A1 |
Since disruptive forces can be continuously exerted upon a rotor during a pulsatile flow through a pump with a magnetically mounted rotor (permanent magnets and addition control current coils), it is necessary to adjust position i.e modi...
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WO/2002/082477A1 |
Two cylindrical bodies (1, 2) can be rotated relative to each other about their coaxial axes. One body (1) includes two permanent magnets (21, 22) with their two poles (N, S) exposed to the other body. The pole surface corresponds to a c...
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WO/2002/068834A1 |
The invention relates to a roller for guiding at least one thread and comprising a hollow cylindrical roller sleeve. Several bearings are used for mounting the hollow cylindrical roller sleeve on a support whereby permitting the sleeve t...
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WO/2002/067407A1 |
The present invention relates to a self-bearing step motor, and more particularly, to self-bearing step motor system and a control method thereof, wherein a rotor can be supported by magnetic force without adding an additional winding fo...
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WO2002049192B1 |
A type of passive magnetic bearing that provides for both positive radial stiffness and significant levels of passive radial damping. Axial damping and axial forces can also be generated with minor modifications to the basic configuratio...
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WO2001002724A9 |
A blood pump (500) preferably has a magnetically suspended rotor (502) that rotates within a housing (506). The rotor (502) may rotate about a stator (504) disposed within the housing. Radial magnetic bearings (560) may be defined within...
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WO/2002/041484A2 |
A system for pumping or mixing a fluid F using a levitating, rotating pumping or mixing element 812 and various other components for use in a pumping or mixing system are disclosed. The pumping or mixing element 812 is placed in a fluid-...
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WO/2002/040884A1 |
The invention concerns a rotary machine comprising a rotating shaft (2) supported by first and second radial magnetic bearings (5, 6) current-controlled by a control device (13). The rotary shaft (2) is equipped with an axial stop device...
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WO/2002/041473A1 |
An integrated motor and magnetic bearing includes a rotor (16) having a plurality of permanent magnets (18) and a stator (12) having a plurality of independently controlled coil segments 1-4 magnetically coupled to the permanent magnets....
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WO/2002/035108A1 |
The invention relates to a bearing, which comprises at least two groups radial stable magnetic rings and at least one group axial stable magnetic ring designed between the radial stable magnetic rings. The radial stable magnetic ring con...
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WO/2002/032618A1 |
The invention relates to a bearing of a machine spindle (3) in machine tools and other processing machines that is supported in a telescoping/non-telescoping manner in spindle housings. The machine spindles (3) are supported in the spind...
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WO/2002/031371A1 |
The device comprises a) a rotor (20) which can rotate or rotates about a rotational axis (A) and b) at least one magnetic suspension bearing (2, 3), in which the rotor can be or is mounted in a contactless manner and which comprises at l...
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WO/2002/031370A1 |
Apparatus for inducing drive (10) is shown in Figure 1 including a primary drive shaft (12) and four secondary drive shafts (14), the primary shaft (12) and secondary shafts (14) each fitted with magnetic means typically in the form of p...
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WO/2002/031372A1 |
A system (10) for pumping or mixing a fluid using a levitating, rotating magnetic bearing (14) and various other components for use in a pumping or mixing system are disclosed. The magnetic bearing (14) is placed in a fluid-containing ve...
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WO/2002/031949A1 |
The invention relates to a device that comprises a ferromagnetic component, which can be subjected to mechanical stress, and is used in the cryogenic temperature range, for example, in the range of liquid air. At temperatures located in ...
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WO/2002/029268A2 |
A microwheel having stators constructed on a wafer material forming an evacuated cavity in which a rotor is levitating to lessen friction losses. A plurality of microwheels can be integrated to serve as energy storage and/or momentum con...
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WO/2002/027205A1 |
The invention relates to a magnetic bearing arrangement (1) for a motion element having the following features. The magnetic bearing arrangement has a stator, and the magnetic bearing arrangement has a passive magnetic bearing (3, 8, 9) ...
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WO/2002/027204A1 |
The invention relates to a magnetic bearing, comprising: a) at least one inner bearing part (5); b) at least one outer bearing part (11) which surrounds the inner bearing part; c) at least one permanent magnet (6a to 6f) and at least one...
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WO/2002/018794A1 |
The vacuum pump (10) comprises a stator (14) in which a rotor (12) with radial magnetic bearings (16,19) and with an axial magnetic bearing (40) is mounted in a contactless manner. The axial magnetic bearing (40) produces an axial magnet...
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WO/2002/018807A1 |
The invention relates to a magnetic bearing (2) for magnetically suspending a rotating shaft (3) within a stator. Said magnetic bearing comprises a first bearing element (5) rigidly linked with the shaft which is enclosed by a second bea...
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WO/2002/016792A1 |
The present invention provides a method and system for stabilizing a rotor about its geometric center in a magnetic bearing system at a constant rotor speed. In the method, the controller for controlling the magnetic bearing uses in adap...
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WO/2002/006689A1 |
A magnetic bearing (1, 2, 3) has two bearing members (5, 7) each of which carries a set of bearing elements (4, 6) and the bearing elements (4) of a said set carried by one member (5) are interleaved with the bearing elements (6) of a sa...
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WO/2002/007289A2 |
The invention relates to an economical, non-wearing, electrical permanent magnet drive for actively controlling the rotor position in three degrees of freedom. The stator windings produce superimposed fields with different pole numbers i...
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WO/2002/006688A1 |
The invention relates to a magnetic bearing assembly of a rotor in a stator comprising at least one magnetic bearing (1), which has a stator part (2) and a rotor part (3) that, in an operating position, is arranged coaxially thereto with...
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WO/2002/002957A1 |
The invention concerns a contact roller bearing for a vacuum pump comprising a rotor roller bearing ring (12) a coaxial stator roller bearing ring (13) between which are provided rolling elements (14a, 14b, 14c, 14d) housed in succession...
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WO/2001/098676A2 |
A magnetic bearing for suspending a rotatable shaft comprises a backiron (1), and a plurality of poles (2) fixedly coupled to the backiron and extending radially inward toward the rotatable shaft (6). The magnetic bearing also comprises ...
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WO/2001/088397A1 |
A system for measuring dynamic loads in a rotordynamic system having a rotor includes a magnetic bearing disposed around the rotor and having a plurality of magnets and at least one fiber optic strain gage associated with a pole of a res...
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WO/2001/088466A1 |
In a rotary assembly comprising a rotor mounted in rotation in a stator about a mean axis or rotation, a radial position sensor comprises three induction sensors (51, 52, 53) distributed in the stator substantially at 120° from one anot...
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WO/2001/086158A1 |
The invention relates to a machine (1), comprising a stator and a rotor (2) which is mounted with radially stable and axially unstable magnetic bearings (3, 4). Said magnetic bearings (3, 4) each consist of concentrically arranged magnet...
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WO/2001/086159A1 |
A sensorless magnetic levitation device is provided for holding an object or a magnetic object in noncontact manner between a pair of electromagnets. An inverter circuit (X) energizes a bridge circuit consisting of windings (9, 10) of th...
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WO/2001/086151A2 |
The invention relates to a magnetic bearing for rapidly rotating machines (1), in particular, for turbo compressors, drag vacuum pumps, or similar, comprising two bearings (3, 4), each with a stator magnetic-ring set (5, 7) and a rotor m...
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WO/2001/084693A1 |
A full levitation magnetic bearing system for support of a rotating body (71), such as a flywheel (92), about an axis of rotation includes passive radial magnetic bearings (70) that generate passive radial centering forces to counteract ...
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WO/2001/082423A1 |
A small-sized excimer laser apparatus operable efficiently with small power consumption, in which the lasing gas in the laser vessel does not degrade and the magnetic bearing is not damaged by the lasing gas. An electromagnet (stator (7-...
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WO/2001/082466A1 |
A magnetic bearing controller capable of operating a motor at a low noise, simple in system structure, small in size, and low in cost, comprising at least a pair of opposed electromagnets floatingly supporting a floated body, a motor (M)...
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WO/2001/081780A1 |
A magnetic bearing in which the magnetic gap between the magnetic pole face of a stator (electromagnet) of the magnetic bearing and the rotator is small, the size of the magnetic bearing is small, and the corrosion resistance thereof is ...
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WO/2001/077401A1 |
The invention relates to a coating installation for coating a metal strip (12) in a molten mass (14) of a non-magnetic metal, which is provided with a shaft (16) that rotates in the molten mass (14) and that guides the metal strip (12). ...
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WO/2001/069047A1 |
A combination bearing (10) supporting a shaft (16) interconnecting the turbine and compressor wheels (18) of a turbocharger incorporates a dual film floating journal bearing (20), a squeeze film damper (32) and ball bearing carrier (48),...
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WO/2001/048389A2 |
The invention relates to a magnetic bearing for generating magnetic forces. A configuration of electromagnetic poles and of permanent magnetic poles which, to the greatest possible extent, is planar enables the generation of a magnetic f...
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WO/2001/044656A1 |
A magnetic levitated electric power generating apparatus using wind force and magnetic levitating force including windmill blades having permanent magnet which are rotated in a levitated state by repulsive force of the magnets. The appar...
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WO/2001/031212A1 |
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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WO/2001/031213A1 |
Rotary machines operated at high speeds or high peripheral speeds often use active magnetic bearings both as radial bearings and as thrust bearings because of their advantage of requiring no lubricating oil. In other words, a rotary shaf...
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WO/2001/027482A1 |
The invention relates to an arrangement of bearings of a high-speed shaft (6) and a shaft (6) that does not transmit or transmits a small torque. The shaft comprises two radial bearings (4, 5) and at least one footstep bearing (14). At l...
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WO/2001/023768A1 |
A thrust magnetic bearing comprising a rotary disc made of a magnetic material and fixed on a rotary shaft and electromagnets arranged on both sides of the rotary disc at a proper minute distance and adapted for bearing the rotary shaft ...
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WO/2001/016466A1 |
A thrust compensation apparatus (150) for high-speed rotating machinery includes an electromagnetic thrust bearing (20) having a thrust rotor (40) and a thrust stator (50), a first chamber (80) filled with a pressurized medium on one sid...
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WO/2001/017096A1 |
A generator is disclosed. The generator which includes a shaft; an electromagnetic bearing for rotatably supporting the shaft; an auxiliary bearing for supporting the shaft in the event of failure of the electromagnetic bearing; a sensor...
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WO/2001/013002A1 |
The invention relates to a self-centring magnetic bearing, consisting of at least one magnet with at least one bearing surface from which a magnetic field emerges or which a magnetic field penetrates, and on which a magnetically conducti...
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WO/2001/009529A1 |
A controller of a magnetic bearing changes the sampling rate of a DSP (4) according to the change in the number of rotations of a rotating member (1). As a result, the frequency range to be attenuated by a notch filter (42), i.e., a digi...
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WO/2001/006139A1 |
A rotating body in a still status on a magnetic bearing is moved until it hits a protection bearing to determine an average value (S) of moved spans. A type of a magnetic bearing is judged based on this value differing depending on diffe...
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WO/2001/006621A1 |
Means to prevent wear from occurring due to a contact sliding of a thrust dynamic pressure bearing surface at the time of start of a spindle motor, wherein a cylindrical column (4) of a radial dynamic pressure bearing having a radial dyn...
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