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Patent Searching and Data


Matches 701 - 750 out of 5,189

Document Document Title
WO/1992/001097
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...  
WO/1992/001096
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...  
WO/1992/001167
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...  
WO/1991/019112
A hydrodynamic bearing which includes a carrier (10) and a plurality of bearing pads (20) circumferentially spaced about the carrier. The pads may have a modular construction whereby pad portions are releasably secured to support portion...  
WO/1991/018217
A radial sliding-contact bearing for rotary rolls has a cylindric fixed inner portion (2), a sleeve (4) rotatable thereon, and a gap (6) between the sleeve and the inner portion intended for a water film which in operation forms a rotary...  
WO/1991/017366
A hydrodynamic thrust, journal or combined radial and thrust bearing and methods of manufacturing the same. The bearing includes a continuous bearing surface (8) and support structure which supports the surface such that the surface may ...  
WO/1991/017367
A hydrodynamic thrust, journal or combined radial and thrust bearing which may be mounted within a sealed housing assembly (10) which can, for example, be used to replace rolling element bearings. The bearing can be designed for mounting...  
WO/1991/004120
The machine includes a fixed support structure (2) with a hydrostatic unit for supporting a spindle (4) carrying a shaving blade (6). The hydrostatic support unit includes a first radial hydrostatic bearing (8) arranged at one end (10) o...  
WO/1991/002174
This invention relates to an axial bearing system intended for a radially mounted shaft (1) and has two hydrostatic axial bearings (4, 5) capable of axial movement relative to a surrounding bearing housing (3). The bearing system compris...  
WO/1990/015032
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 (...  
WO/1990/015263
A roller (100) for compressing webs of material (30) comprises a rotating hollow roller (1) traversed lengthwise by a stationary crosshead (3). Hydraulic loading devices in the form of sealing members (14) act on the inner circumference ...  
WO/1990/014525
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...  
WO/1990/009531
A gas bearing system (31) for maintaining high static stiffness while damping high and low frequency vibrations. The system (31) includes a bearing shoe (28) having a primary reservoir (30) which is supplied with gas through a primary re...  
WO/1990/004101
This invention relates to a variable capacitance, oblique spindle type hydraulic machine which supports the reaction of oil pressure acting on a cylinder block (8) by a radial static pressure bearing (23) or by a thrust static pressure b...  
WO/1990/003684
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 ...  
WO/1989/012178
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...  
WO/1989/003488
In a precision machine, such as a coordinate measuring machine or a machine tool in which a carriage (14) rides along a rail (12), a gas bearing (10) for applying a constant preload force to a bearing shoe (46) over a range of relative m...  
WO/1988/009443
A hydrodynamic bearing and methods of manufacturing the same. The bearing includes a bearing pad structure that may change shape and move in any direction (six degrees of freedom) to form a converging wedge for hydrodynamic operation, an...  
WO/1988/008525
A hydrostatic journal bearing for a vibration test apparatus. The apparatus comprises a pillow block housing (28) which is operatively coupled to a slip plate (10) mounting the workpiece (12) by an oil film on the housing surface (58), w...  
WO/1988/003611
In a hydrostatic thrust bearing system intended for an axle or shaft (1) provided with a pressure plate (1a) and also incorporating separate radial journals there is used a ring chamber bearing (2; 3) on each side of the pressure plate. ...  
WO/1988/003085
The extruder, designed in particular for extruding food stuffs, has a high speed endless screw (18), which is supported in its housing in an axial direction by means of an axial support composed of pistons (34) arranged in a housing plat...  
WO/1988/002073
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...  
WO/1987/007690
A hydrostatic bearing (28) is provided between two relatively movable members (11, 12). Opposing sensing and bearing pads (29, 18) extend into either member and face the other member. These pads communicate with one another. An inlet ori...  
WO/1986/005848
A hydrodynamic slide bearing unit has a first race surface (3) in a housing and a second race surface (1) on a shaft sleeve. Between said surfaces there is at least one lubricant load-bearing pressure zone (9). The pressure (p) in the di...  
WO/1986/001862
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...  
WO/1986/001434
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...  
WO/1986/001268
Whirling and like vibrations of a high-speed flexible rotor (1) in a plane at right angles to its nominal axis of rotation are dampened by the reaction against the rotor surface of an array of fluid jets directed tangentially, and in a s...  
WO/1985/005417
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...  
WO/1984/002755
This invention pertains to the technical field of vibratory pneumatodynamic bearings. The technical problem is to reduce bearing weight while not increasing pitch and yaw. This is accomplished by employing a transducer (41) including an ...  
WO/1984/001802
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...  
WO/1984/000198
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...  
WO/1983/001482
Energy converter, comprising a boiler, a turbine (11), a condenser, a feed pump (16) and a generator (17) and, if required, a recuperator and a pre-feeding pump. The thermal energy to be supplied to the boiler has been arranged to mainta...  
WO/1982/003666
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...  
WO/1982/002235
A graded planar seal is provided between opposing planar surfaces (62, 64) for isolating an air bearing in a vacuum environment (16). The air bearing (22, 24, 26, 62, 64) supports a structure (20) such as a semiconductor mask or wafer an...  
WO/1981/001449
Hydrostatic bearing of which the journal of the shaft (1) affects the shape of a sleeve (2). The bearing comprises a first and a second sets of chambers (5 and 6) provided in the concentric bearings (3 and 4) respectively facing the inne...  
JP2014098424
To increase a radial pinning force without causing upsizing of a device.A super conductive pump 10 comprises: a rotating body part 14 including a rotating shaft 38, a first magnet part 32 fixed to the rotating shaft 38, and a second magn...  
JP2014095424
To provide a magnetic pressure type hydrostatic pressure guide device capable of making the floating amount of a moving body uniform by appropriately setting installation positions of a sliding surface and magnetic attraction means and i...  
JP2014084825
To shorten the lengths of rotating shafts in a two-shaft vacuum pump provided with magnetic bearings.A vacuum pump comprises: two rotating shafts that are arranged in parallel and synchronously rotate on two respective axes; and magnetic...  
JP2014074492
To provide a magnetic bearing capable of reducing leakage magnetic flux between teeth.A predetermined teeth (24) is formed such that an interval (P1) with one side teeth (24) gotten lined up on both sides in the circumferential direction...  
JP2014070733
To provide a fluid flow adjustor of a rotary type.A fluid flow adjustor of a rotary type for controlling flow of fluid includes a main body and a rotator. The main body includes an upper cover, a bearing and a lower cover. The upper cove...  
JP2014062580
To provide a static pressure gas bearing capable of performing highly precise guiding by increasing fastening rigidity.A static pressure gas bearing includes a mover, a guide part which has a surface opposite to the mover and contains an...  
JP2014059059
To provide a rotary apparatus for a vacuum pump or a turbo molecular pump allowed to be continuously and surely operated without generating abrasion even at an extremely hight rotational frequency and allowing generation of only a slight...  
JP2014059058
To ensure stability of correction of rotor precession movements regardless of speed of rotation of a rotor.There is provided a command procedure for an active magnetic bearing. The magnetic bearing comprises: a series of electromagnetic ...  
JP2014058932
To enhance damping effect on vibrations transmitted from a rotor to a housing.A damping mechanism 50 comprises an inner ring 51, an outer ring 52, a spring plate 53, and a thrust stopper 55. A base portion 51a of the inner ring 51 and an...  
JP2014051995
To provide a three-axis active control type magnetic bearing that is easily produced and has improved mechanical strength.A three-axis active control type magnetic bearing comprises a radial winding 1, a radial control stator 2, a perman...  
JP2014047827
To provide a static pressure gas bearing spindle device capable of suppressing vibrations of a rotation member.A static pressure gas bearing spindle device 30 includes a rotation member 1, a thrust bearing sleeve part 5 and a journal bea...  
JP2014043928
To provide a forward/backward slight movement rotary bearing having a simple structure, reduced in noise, free from a lubricant, and having high durability.A forward/backward slight movement rotary bearing 100 includes a disc-shaped moun...  
JP2014043918
To provide a static pressure gas radial bearing capable of uniformly discharging compressed air from the whole face of a bearing face, and achieving high restriction effect.A static pressure gas radial bearing 1A includes a cylindrical f...  
JP2014043834
To provide a centrifugal compressor which includes auxiliary bearings for supporting a shaft when the shaft journaled by a magnetic bearing is displaced from a reference position, and in which the axial movement of the shaft is reliably ...  
JP2014045548
To provide a magnetic bearing vacuum pump in which open circuit of a sensor can be detected even if both of a pair of displacement sensors are open-circuited.In a magnetic bearing vacuum pump in which the difference value of sensor signa...  

Matches 701 - 750 out of 5,189