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WO/1996/018048A2 |
In known devices, bearing prestress is varied by displacement of the inner bearing rings which can lead to corrosion owing to friction on the spindle surface. The invention concerns a novel device which eliminates the risk of corrosion o...
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WO/1996/017180A1 |
A method is proposed of compensating for periodic vibration forces in an electrical induction machine with special winding for the combined production of torque and a transverse force in the machine. The proposed method starts from a con...
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WO/1996/015369A1 |
Piston compressor for compressing gas, comprising a frame with at least one cylinder which has an essentially horizontal axis, a piston which is reciprocable in the cylinder, a piston rod which at one end thereof is fixed to the piston, ...
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WO/1996/010135A1 |
An electromagnetic bearing for suspending a rotor (21), comprising a core (29) defining a pair of poles (31), coils (35) mounted onthe core (29) which, when energised, produce magnetic flux which passes from one pole (31) of the pole pai...
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WO/1996/008831A2 |
A high temperature superconducting bearing including a permanent magnet rotor levitated by a high temperature superconducting structure. The rotor preferably comprises a plurality of concentric permanent magnet rings coupled to permanent...
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WO/1996/002353A1 |
Formed in a spindle (2) is a cooling processing liquid passage (19) extending axially. Fixedly provided on a rear end of a housing (1) is a cylindrical cooling processing liquid supplying member (29) adapted to be inserted into the passa...
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WO/1996/001956A1 |
A back-up bearing arrangement (25) for a magnetic bearing (12, 13) includes a stationary dry running bearing material (30) and a rotatable collar (26) which runs in abutment therewith upon failure of the magnetic bearing. To avoid adhesi...
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WO/1995/035447A1 |
A turboexpander associated with a rotary compressor by means of a rotor shaft connecting the two. A bearing housing includes magnetic radial and thrust bearings which control the placement and dynamics of the shaft within the housing. A ...
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WO/1995/034763A1 |
A DC-biased axial magnetic bearing includes a rotating member (50) (or shaft) having a radially extending tab (or support) (52) located between a pair of teeth (62, 64) of a C-shaped control member (60). A permanent magnet (68) provides ...
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WO/1995/032541A1 |
A high temperature superconductor material bearing system (38). This system (38) includes a rotor (50) having a ring permanent magnet (60), a plurality of permanent magnets (16, 20 and 70) for interacting to generate levitation forces fo...
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WO/1995/032542A1 |
An apparatus and method for reducing magnetic field inhomogeneities which produce rotational loss mechanisms in high temperature superconducting magnetic bearings. Magnetic field inhomogeneities are reduced by dividing high temperature s...
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WO/1995/024760A1 |
A magnetic bearing system contains magnetic subsystems supporting a rotating element in dynamic equilibrium. Earnshaw's Theorem limitations at zero rotational speed necessitate mechanical stabilizers until a low critical speed is reached...
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WO/1995/023297A1 |
An automatic position-sensing active magnetic bearing comprises first and second opposing electromagnets arranged on either side of a ferromagnetic body (1) suspended without contact between said electromagnets. The bearing comprises ind...
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WO/1995/023298A1 |
A magnetic thrust bearing (110) comprises a magnet (112) mounted on a shaft (114) and a plurality of equi-angularly spaced superconductors (116) mounted on a static structure (118). Each superconductor (116) is mounted onto the static st...
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WO/1995/020260A1 |
An induction machine is disclosed with a special winding for the combined production of torque and transverse force in the same. The current in a control winding of the stator is used to adjust the strength and direction of the transvers...
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WO/1995/020264A1 |
A ferromagnetic body (21) of a movable part (2) is so disposed as to oppose a high-temperature superconductive body (11) of a fixed part (1), and the high-temperature superconductive body (11) is cooled to a temperature below a critical ...
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WO/1995/018925A1 |
A process and device are disclosed for controlling an electric induction machine with a special winding for simultaneously generating a torque and a transverse force therein. The intensity and direction of the transverse force acting on ...
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WO/1995/016240A1 |
A multidimensional interconnection and routing apparatus for a parallel processing computer connects together processing elements in a three-dimensional structure. The interconnection and routing apparatus includes a plurality of process...
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WO/1995/013480A1 |
A device for mounting and driving a tubular spindle (10), including first and second axial-flux radial active magnetic bearings (60, 70) arranged at first and second ends of the tube (10) respectively. Each of the radial active magnetic ...
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WO/1995/012831A1 |
The proposed device for deflecting optical beams, in particular laser beams, comprises reflecting surfaces (2.2) on a driveable rotating body (2). The rotating body (2) consists of a monocrystalline substance and the reflecting surfaces ...
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WO/1995/006208A1 |
A superconductor magnetic bearing includes a shaft (10) that is subject to a load (L) and rotatable around an axis of rotation, a magnet (12) mounted to the shaft, and a stator (14) in proximity to the shaft. The stator (14) has a superc...
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WO/1995/005700A1 |
An electromagnet thrust bearing (10) couples a rotatable member (16, 18a, 18b) relative to a stationary member (14) utilizing a combination of controllable electromagnets (24) and a radially polarized permanent magnet (32), each physical...
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WO/1995/003647A1 |
An alternate current electromagnet (8, 10) is used in a magnetic bearing (1) in which one or more electrically conducting loops (6) travel on a prescribed path through a magnetic field produced by the electromagnet (8, 10). An electrical...
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WO/1995/002270A1 |
An energy conversion and storage device which comprises a rotor (5) comprising a tubular body portion and a stator (7) comprising one or more electric coils whereby electrical energy may be applied to and extracted from the device when t...
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WO/1994/029610A1 |
A vibrating shaft assembly (11) has a magnet compensating system for its rotating shaft (13) for reducing the dynamic loads on the shaft bearings. The magnetic support system includes a radially magnetized permanent arc magnet (33) which...
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WO/1994/020767A1 |
The present invention provides control system for use in controlling a rotating shaft (10) mounted within a plurality of magnetic bearings (12A, 12B, 14A, 14B). The control system including (A) an electromagnet (28, 34) which comprises a...
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WO/1994/020893A1 |
A flywheel energy storage device (10) having an iron structure (20), high temperature superconductor material structure (16) and a permanent magnet structure (14). Various geometries of this device are disclosed.
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WO/1994/016233A1 |
A combination bearing construction capable of withstanding high-speed rotation and having a high accuracy of rotation is provided. The combination bearing construction comprises a first bearing means, a second bearing means, a third bear...
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WO/1994/016235A1 |
The invention relates to a rotationally symmetrical magnetic bearing cell (1) with a rotor (2) arranged to rotate about the central axis (10) of the cell (1) and having a shaft (4) and at least two axially magnetised permanent magnet rin...
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WO/1994/013955A1 |
A fluid pump with a rotary impeller is disclosed which comprises an electromagnetically-driven, bearing-free, seal-free rotary impeller (16) levitated by localized opposed, magnetic forces and by fluid forces, or by localized opposed mag...
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WO/1994/010746A1 |
Various levitation devices are disclosed in which an array of permanent magnets (12) is levitated by magnetic interaction with a diamagnetic material (16). Levitation is achieved without using a fixed permanent magnet or other device to ...
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WO/1994/008384A1 |
A magnetic bearing system uses conductive loops which interact with magnets (26, 28, 29) to levitate a rotor (16-18) and to center on a rotational axis (A1). The rotor having a plurality of closed loops (22, 24) of finite inductance and ...
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WO/1994/007299A2 |
A torque motor (8) comprises an armature (30) placed radially between a central bar (31) and an external ferromagnetic tubular portion (32). The central bar (31) comprises two portions of the same cylinder (33A, 33B) diametrically opposi...
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WO/1994/007044A1 |
Device for positioning a rotating body (4) movable about an axis (X-X) in relation to a stator body including a magnetic bearing (7) and a locking/releasing device (10). The device is characterized in that the locking/releasing device (1...
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WO/1994/004837A1 |
Described is a stream turbine with a shaft (3) which, at least over part of its length, is located in a housing (4) through which it passes, one end of the housing (4) being the high-pressure end (10) and the opposite end the steam-exhau...
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WO/1994/004825A1 |
The invention relates to a process for monitoring the operative position of the rotary system of a vacuum pump, especially a turbo-molecular pump, which is suspended in the housing (1) of the vacuum pump by means of a magnetic bearing (1...
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WO/1993/023683A1 |
In order to stabilise a body borne contactlessly in the magnetic field of a stator, there is a magnetic bearing regulator which influences the magnetic field between magnetisable components in the stator and magnetisable components of th...
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WO/1993/020362A1 |
The invention concerns an auxiliary bearing system with mechanical bearing elements (3, 4), the auxiliary bearing system being designed for a rotor (2) which is mounted for contactless motion in a stator (1), in particular by means of a ...
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WO/1993/019320A1 |
A wastewater disposal system for a building which recycles grey wastewater for irrigation. The system has interconnected wastewater pipes (20-29) containing two separate passageways (20a, 20b), one for reusable grey water and the other f...
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WO/1993/016294A1 |
A superconducting bearing comprises a rotating member A and a fixed member B, one of which is provided with a superconducting member (5) while the other is provided with a magnet (8). The superconducting member (5) includes a superconduc...
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WO/1993/011372A1 |
Disclosed are devices for influencing and/or controlling relative motion between members, such as vibration damping or absorbing devices, clutches and brakes. The devices comprise a magnet (18) on one member (14) and a field cooled super...
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WO/1993/010333A1 |
In a rotary screw machine a shaft journal (7) of one of the rotors (6) is mounted in main thrust bearings (9, 10) and a balancing thrust bearing (11), the latter being located outermost on the shaft journal (7). The main thrust bearings ...
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WO/1993/010367A1 |
A magnetically levitated superconducting bearing includes a magnet (2) mounted on a shaft (12) that is rotatable around an axis of rotation and a Type II superconductor (6) supported on a stator (14) in proximity to the magnet (2). The s...
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WO/1993/007388A1 |
A fluid pump (10) with rotary impeller (68) is disclosed which comprises an electromagnetically-driven (30), bearing free, seal-free rotary impeller (68) levitated by localized opposed, repulsive, permanent magnetic forces (60, 64) only....
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WO/1993/005310A1 |
The design and arrangement of a magnetic bearing (1) for use in rotary machines is disclosed. The magnetic bearing contains magnets (8, 26, 27) circumferentially spaced about the axis of rotation of a shaft (35) and supports the shaft (3...
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WO/1993/003292A1 |
A flywheel (10) having superconductor bearings (110) has a lower drag to lift ratio that translates to an improvement of a factor of ten in the rotational decay rate. The lower drag results from the lower dissipation of melt-processed YB...
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WO/1992/021175A1 |
Disclosed is a superconductor-magnet system having high thrust and stability and a method for increasing the thrust and stability of such a system. The superconductor-magnet system comprises a first magnet (M1), a second magnet (M2) and ...
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WO/1992/019877A1 |
The invention relates to a process for starting a machine fitted with a rotor on magnetic bearings and a circuit for implementing said process; in order to automate this process, the procedure is such that the fact that an axial stop bea...
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WO/1992/016762A1 |
A superconductive bearing device includes a ring-like permanent magnet portion (2) disposed concentrically on a vertical axial rotor (1), and a superconductor (8) disposed below the permanent magnet portion (2) in such a manner as to fac...
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WO/1992/016761A1 |
A superconductive bearing device for supporting rotatably a shaft (rotor) (2) rotating at a high speed, under a non-contact state. A superconductive bearing (4) for supporting the shaft (2) under a non-contact state to a housing (1) incl...
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