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WO/2004/089588A1 |
The invention relates to a drive unit for a granulator, in particular an underwater granulator, comprising a rotor (13) that is or can be connected to a cutting blade (20, 22) of the granulator. Said unit is equipped with an electric mot...
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WO/2004/076876A1 |
A control system of a magnetic bearing, comprising a microprocessor, and having a high control performance even though inexpensive A/D converters are used. An A/D converter 31 is of high speed type having a short conversion time. A large...
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WO/2004/055607A2 |
A apparatus processes an object (19), such as a semi-conductor wafer at accurately controlled positions. The object (19) is supported by a working platform (12) that is moveable along a path. A suspension actuator part (14) attached to t...
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WO/2004/048883A1 |
A device for contact-less measurement of distances (10, 20) in multiple directions of an electrically conductive body (2, 22) comprises a plurality of inductive elements (1, 4, 7). At least one (1) of the plurality of inductive elements ...
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WO2004022988B1 |
A magnetic bearing device has a rotating bearing (20) fixed to a rotating shaft (10) and a fixed bearing (30) supporting the rotating bearing (20) without contact. The rotating bearing (20) is made from a permanent magnet with a convex-s...
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WO/2004/030198A2 |
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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WO/2004/020942A1 |
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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WO/2004/020850A1 |
The invention relates to a device comprising a plain bearing (36), which contains ferromagnetic material and which is provided for radially supporting a shaft (34) that is made of ferromagnetic material. The shaft (34) is mounted in said...
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WO/2004/021016A1 |
The invention relates to an inertial sensor based on the magnetic levitation of an inertial mass comprising an active magnetic bearing unit arranged in such a way as to levitate the inertial mass and characterized by the fact that it fur...
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WO/2004/013503A1 |
The invention relates to a machine element (10) comprising two components (12, 14) that move relative to one another and roller bearings (16, 18) of different nominal diameters arranged between said components (12, 14). The difference in...
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WO/2004/013504A1 |
A superconducting magnetic bearing (22) comprises a stationary side bearing part (23) having a ring superconductor unit (26) provided to a stationary part (20) and a rotary side bearing part (24) having a ring permanent magnet unit (28, ...
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WO/2004/007982A1 |
A magnetic bearing spindle, comprising a radial magnetic bearing rotor (2) formed by stacking ring−shaped punched plates formed of flat rolled magnetic steel sheet, an axial magnetic bearing rotor (3) formed of magnetic material, and a...
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WO/2004/007984A1 |
The present invention provides a device and a method to enhance thrust load capacity in a rotor-bearing system. The load-enhancing device comprises a stator and a rotor arranged in such as way as to achieve a magnetic thrust load capacit...
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WO/2004/005747A2 |
A method and system for calculating a control function for a structural system (10) that can be used to determine an appropriate control force to apply to an active member (18) within a stationary member (12) on the structural system (10...
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WO/2004/001776A1 |
The invention relates to monodispersable, optionally magnetic particles containing one or more metals, optionally, protected by a secondary treatment with air, having an adjustable average particle size of between 2 and 15 nm and a narro...
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WO/2003/100780A1 |
The present invention relates to the field of fluid dynamic bearings. Specifically, the present invention provides an apparatus and method useful for constraining axial movement of a motor hub in a high speed spindle motor assembly.
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WO/2003/098622A1 |
A single thrust beraing fluid dynamic bearing (FDB) design, including a typical dynamic bearing design which comprises a ring-shaped or circular thrust plate mounted at or near the end of a shaft, wherein the shaft defines together with ...
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WO/2003/098064A1 |
Disclosed is a passive axial magnetic bearing comprising a rotor (1, 2, 8) that is provided with permanent magnets (1, 2) which are arranged thereon with alternating polarization. Said permanent magnets (1, 2) create an oscillating flux ...
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WO2002095899B1 |
A magnetic thrust bearing having a high speed rotation capability and low cost construction. The magnetic thrust bearing has permanent magnets to provide bias flux. The magnetic circuits of the control flux and bias fluxes are substantia...
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WO/2003/091585A1 |
A ball joint (A) which uses spherical rollers (5) to reduce the torque friction which tends to inhibit the rotation of the ball (4) within a ball joint assembly (A). Two sets of spherical rollers (5) are captivated between the ball (4) a...
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WO/2003/089799A1 |
A seal-less immersible mixing system (50) for agitating materials contained within a storage tank. The mixing system utilizes an induction motor (66) to drive a drive shaft (56) having an impeller (52). The mixing system also includes a ...
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WO/2003/087581A1 |
The invention relates to an exhaust gas turbocharger (1) with a shaft (2) on which a turbo turbine (4) and a compressor turbine (3) are mounted and which is guided in radial bearings (5, 6) and at least one axial bearing (9). The inventi...
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WO/2003/087602A1 |
The invention relates to a magnetic guiding device (1) comprising at least one element (2) which is to be magnetically guided in the axial direction, e.g. a shaft or an actuating element which can be displaced in the axial direction. Sai...
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WO/2003/079348A1 |
The shaft may be supported for rotation by a conical bearing rotating within a sleeve. To prevent misalignment of the rotor and stator as the motor heats up and fluid viscosity changes, a magnetic preload is established; in a preferred e...
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WO2002053929A9 |
The invention relates to mechanical engineering and can be used as bearing supports for a fast-rotating flywheel of inertial energy storage devices. The inventive magnetic suspension comprises moving magnets connected to the flywheel axi...
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WO/2003/073586A1 |
An improved magnetic bearing that uses permanent magnets (28, 30) to provide the bias flux. The magnetic circuits generating the control flux and bias fluxes are substantially non-coincident but share the same path over some portions tha...
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WO/2003/067109A1 |
Bearing arrangement for a linear slide (1) moveable in a first direction (x) with respect to a base plate (6). Each magnetic bearing unit (10) comprises a permanent magnet (13) and an electromagnet (12) and co−operates with a rail (7) ...
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WO/2003/061098A1 |
A rotor arrangement having radial bearings includes a stator (2), a rotor (1) rotatably mounted in the stator, and two axially separated magnetic radial bearings (3) which function to support the rotor (1) radially from the stator (2) fo...
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WO/2003/058081A1 |
A bearing is presented having a multiplicity of rotating sleeves. A bushing is connected to one of the multiplicity of rotating sleeves. At least one bearing set is connected to the multiplicity of rotating sleeves. Also, a bearing is pr...
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WO/2003/056196A1 |
A roulette wheel hub assembly has axle (17) supported by bearings (18, 20) seated in respective open ends of hollow housing (11). Between bearings (18, 20) is a stack of: magnetic pairs (25) (comprising inner magnets (27), attached to th...
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WO/2003/056173A1 |
The invention relates to a wind turbine comprising a tower mount, a wind-driven rotor which can be rotated about a rotational axis, and an output device, especially a turbine, which is rotatably connected to the rotor. The rotational axi...
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WO/2003/046911A1 |
Disclosed is a spindle motor for hard disk drives capable of generating mechanical and electrical preloads in order to form a predetermined size of air gap through use of mechanical and electrical offsets, so that the spindle motor can b...
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WO/2003/038973A1 |
The invention relates to a trunnion bearing assembly (1) for the safety bearing of a high−speed electric machine (2). The high−speed electric machine (2) comprises a rotor (3) arranged to be rotatable, a stator (11), and at least one...
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WO/2003/032470A1 |
This invention is a rotating electrical machine comprising two major components capable of relative rotation about a common axis and separated by an air gap in which magnetic fields linking the two main components through the air gap act...
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WO/2003/027520A1 |
The present invention relates to a passive and active magnetic bearing using the Lorentz force, which consists of a rotor with a permanent magnet at its center and several coils which are located at an outside axial air gap of the rotor ...
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WO/2003/026098A1 |
Featured is a method for passively-repulsively lifting a rotor assembly (11) of a flywheel energy storage system (10), comprising the steps of mechanically coupling a first permanent magnet (204a) to the rotor assembly (11) and fixedly p...
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WO2002088624B1 |
The invention relates to a bearing (32) for a coordinate measuring instrument comprising a slide (36), which can be axially displaced in relation to the fixing device (34) and which can be supported opposite a fixing device by means of a...
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WO/2003/023942A1 |
A flywheel energy storage system (10) includes a vacuum enclosure (18) having a flywheel (12), motor/generator (14), and a shaft (16) enclosed within. The flywheel and motor/generator combinationare designed to minimize bearing loads and...
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WO/2003/021748A1 |
The invention concerns a system for suspending and rotating a rotary shaft comprising: a motor module (100) including a central rotary shaft (110) having at each end a front annular support surface (120) delimiting a truncated zone (130)...
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WO/2003/021122A1 |
A passive magnetic bearing is composed of a levitation element and a restorative element. The levitation element is composed of a pair of stationary arcuate ferromagnetic segments located within an annular radial-field magnet array. The ...
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WO/2003/021121A1 |
Conductive lap windings are interleaved with conventional loops in the stator of a motor-generator. The rotor provides magnetic induction lines that, when rotated, cut across the lap windings and the loops. When the rotor is laterally di...
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WO/2003/021123A1 |
The invention relates to a device that compensates for disturbances in a rotating machine in order to eliminate unwanted vibrations caused by synchronous disturbances, such as those caused by unbalance for example. Said machine comprises...
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WO/2003/019785A2 |
A turbo−generator machine (10) for producing a supply of cooled air and a supply of electric power has a permanent magnet generator rotor (52) fixed to a shaft (50) which is driven by a turbine rotor (62), the turbine serving to expand...
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WO/2003/004890A1 |
The magnetic flux density by magnetic poles of electromagnets (M1 to M12) arranged at the same place in the axial direction of a rotor (1) at predetermined intervals in the circumferential direction of the rotor (1) varies gradually in t...
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WO/2003/003539A2 |
A magnetic bearing system (10) allows a movable body (12) to be positioned to a point of substantial equilibrium in an axial direction after a system shutdown. A sensor (22) measures the axial position of the movable body (12) to produce...
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WO/2002/103215A1 |
The invention relates to an emergency bearing for a rotary machine with magnetic bearings consisting of an emergency undercarriage device comprising an intermediary element (9) having a large contact surface with a stator element (10). S...
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WO/2002/103216A1 |
The invention relates to an active magnetic bearing (1) comprising: a stator (2) which is equipped with magnet coils (21) and a first stack of ferromagnetic plates (22); a rotor (3) which is equipped with a second stack of ferromagnetic ...
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WO/2002/099294A2 |
A tilting pad journal bearing, which may be a back-up bearing for a magnetically suspended shaft capable of applying shock loads thereto, comprises in a first embodiment (20, Fig 1) an annular housing (24) for an array of arcuate bearing...
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WO/2002/095104A1 |
The invention relates to a galette for guiding at least one thread, comprising a hollow cylindrical body. Said hollow cylindrical galette body is positioned on a carrier by means of a plurality of bearings in such a way that it can rotat...
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WO/2002/095904A1 |
A magnetic levitation motor for rotating a rotor as levitated above a stator by a DC magnetic field and a stator winding. This motor comprises a DC magnetic field generating means (4) for generating a radial flux around the axis inside a...
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