公开(公告)号：US5910695A

公开(公告)日：1999-06-08

申请号：US47992

申请日：1998-03-25

申请人： Heinrich Lotz

发明人： Heinrich Lotz

IPC分类号： F01D25/16 ,  F04D19/04 ,  F04D29/66 ,  F16C27/00 ,  F16C32/04 ,  F16C39/06 ,  H02K7/09 ,  H02K5/24

CPC分类号： F16C32/0476 ,  F04D19/048 ,  F04D29/668 ,  F16C27/00 ,  F16C32/0425 ,  F16C2360/45

摘要： A damping device for a rotor supported by an arrangement of magnetic bearings including at least one radial bearing formed of a stator magnet and a rotor magnet, with the damping device, including an intermediate member fixedly connected with the rotor by the stator magnet of the at least one radial bearing, and connected with a stationary part in an axial direction by connecting elements including spherical recesses formed in the intermediate member and in the stationary part and balls located in opposite recesses of the intermediate member and the stationary part, with spherical recesses having a diameter larger than a diameter of the balls, and with the balls or surfaces of the recesses being formed of an elastically deformable material having a modulus of elasticity smaller than a modulus of elasticity of a metal.

摘要翻译： 一种用于转子的阻尼装置，其由包括由定子磁体和转子磁体形成的至少一个径向轴承的磁性轴承的布置支撑，阻尼装置包括通过定子磁体固定地连接到转子的中间部件 至少一个径向轴承，并且通过包括形成在中间构件中的球形凹部和固定部分中的连接元件以及位于中间构件和固定部分的相对凹部中的球体在轴向方向上与固定部分连接，球形凹部具有 直径大于球的直径，并且凹槽的球或表面由弹性模量小于金属弹性模量的弹性变形材料形成。

公开(公告)号：USRE36101E

公开(公告)日：1999-02-16

申请号：US488578

申请日：1995-06-08

申请人： Michael Andres ,  Terry L. Coons

发明人： Michael Andres ,  Terry L. Coons

IPC分类号： B64D13/06 ,  F01D25/16 ,  F02C6/06 ,  F04D25/04 ,  F04D29/04 ,  F04D29/058 ,  F16C39/06 ,  F25B9/00

CPC分类号： F04D29/058 ,  B64D13/06 ,  F01D25/16 ,  F02C6/06 ,  F04D25/04 ,  F16C32/0461 ,  F16C32/047 ,  F16C35/00 ,  F05D2220/50 ,  F05D2240/511 ,  F05D2240/515 ,  F16C2360/44 ,  F16C2362/52 ,  F16C39/02 ,  F25B9/004

摘要： An air cycle machine for producing a supply of cooled air and including a compressor rotor fixed to a shaft which is driven by a turbine rotor, the turbine serving to expand air which is pressurized by the compressor. Magnetic bearings support the shaft radially in a housing for rotation about a precisely established axis while a magnetic thrust bearing keeps the shaft in a precisely fixed axial position. The housing and the bearings are constructed as two split sections to permit the housing and the bearings to be separated radially and facilitate repair and/or replacement of the shaft and other internal components.

摘要翻译： 一种用于产生冷却空气供应的空气循环机，包括固定在由涡轮转子驱动的轴上的压缩机转子，所述涡轮用于膨胀由压缩机加压的空气。 磁轴承将轴轴向径向地支撑在壳体内，用于围绕精确建立的轴线旋转，而磁力推力轴承将轴保持在精确固定的轴向位置。 壳体和轴承构造为两个分开的部分，以允许壳体和轴承径向分离，并且便于轴和其它内部部件的修理和/或更换。

公开(公告)号：US5840070A

公开(公告)日：1998-11-24

申请号：US910375

申请日：1997-08-13

申请人： Richard K. Wampler

发明人： Richard K. Wampler

IPC分类号： F04D29/046 ,  A61M1/10 ,  F04D13/06 ,  F04D29/048 ,  F04D29/08 ,  F16C39/06 ,  H02K5/128 ,  H02K7/09 ,  H02K7/14 ,  H02K41/03 ,  A61M37/00

CPC分类号： H02K5/1285 ,  A61M1/101 ,  A61M1/1015 ,  A61M1/1031 ,  A61M1/122 ,  A61M1/125 ,  F16C39/063 ,  H02K41/03 ,  H02K7/09 ,  H02K7/14 ,  Y10S415/90

摘要： An implantable rotary sealless blood pump is provided. The pump includes a housing having an inlet tube on one end and an impeller casing on the other end. A rotor is mounted for rotation within the housing, with the rotor having an elongated shaft portion and an impeller attached to the shaft portion. The impeller is located within the impeller casing. Radial magnetic bearings are carried by the shaft portion and radial magnetic bearings are carried by the housing for maintaining the shaft portion of the rotor within the inlet tube of the housing. A rotor motor includes a plurality of permanent magnets carried by the impeller and a motor stator including an electrically conductive coil located within the housing. A ring of back iron is carried by the impeller to aid in completing a flux return path for the permanent magnets. A plurality of hydrodynamic thrust bearings are located outside of the axis of rotation of the rotor. The impeller uses large axially thick blade sectors with narrow blood channels extending through the impeller, to minimize hemolysis and to increase the working surface of the blades.

公开(公告)号：US5831362A

公开(公告)日：1998-11-03

申请号：US895387

申请日：1997-07-16

申请人： Wei-Kan Chu ,  Quark Yung-Sung Chen ,  Ki-Bui Ma ,  Harold Zule Xia ,  Mark Alan Lamb ,  Rodger Sheldon Cooley ,  Chase Kenyon McMichael

发明人： Wei-Kan Chu ,  Quark Yung-Sung Chen ,  Ki-Bui Ma ,  Harold Zule Xia ,  Mark Alan Lamb ,  Rodger Sheldon Cooley ,  Chase Kenyon McMichael

IPC分类号： F16C39/06 ,  F16F15/30 ,  H02K7/02 ,  H02K7/09

CPC分类号： H02K7/09 ,  F16C32/0408 ,  F16C32/0438 ,  F16F15/30 ,  H02K7/025 ,  Y02E60/16 ,  Y10T74/2119

摘要： Disclosed is a flywheel system for storing kinetic energy which utilizes a high temperature superconductor/magnet system for the flywheel bearings. The flywheel includes a first magnet, and having a ring magnet defining an opening. The levitation system includes a magnet for attractively interacting with first flywheel magnet, with a high temperature superconductor interposed between them, and further includes a magnet system for repulsively interacting with and partially inserted into the ring magnet.

摘要翻译： 公开了一种用于存储动能的飞轮系统，其利用用于飞轮轴承的高温超导体/磁体系统。 飞轮包括第一磁体，并且具有限定开口的环形磁铁。 悬浮系统包括用于与第一飞轮磁体吸引地相互作用的磁体，其间插入有高温超导体，并且还包括用于与环形磁体排斥地相互作用并部分插入的磁体系统。

公开(公告)号：US5808839A

公开(公告)日：1998-09-15

申请号：US714507

申请日：1996-09-16

申请人： John Charles Dunfield ,  Kamran Oveyssi

发明人： John Charles Dunfield ,  Kamran Oveyssi

IPC分类号： F16C39/06 ,  G11B5/48 ,  G11B5/55

CPC分类号： F16C39/063 ,  F16C32/0425 ,  G11B5/4813 ,  G11B5/5521 ,  F16C2370/12

摘要： A disc drive cartridge is disclosed comprising a central actuator arm pivot hub mounting one magnetic pole, which in turn rotates within and overlaps a u-shaped upright base and sleeve supporting a second non-aligned magnetic pole. The system relies on the radial repulsive forces of the separate magnetic poles to achieve significant radial stability; in certain embodiments, attractive forces between axially aligned magnetic poles or a magnetic pole and a sleeve of high permeability magnetic material are also utilized to enhance the axial stability of the system. The rotating hub supports on one side one or more actuator arms and on the other side a coil of a voice coil motor, so that this magnetic bearing can be the central pivot for a very small compact and low noise disc drive cartridge.

摘要翻译： 公开了一种盘驱动器盒，其包括安装一个磁极的中央执行器臂枢转毂，该磁极又在支撑第二非对准磁极的u形立柱底座和套筒内旋转并重叠。 该系统依赖于单独磁极的径向排斥力，以获得显着的径向稳定性; 在某些实施例中，也利用轴向对准的磁极或磁极与高磁导率磁性材料的套筒之间的吸引力来增强系统的轴向稳定性。 旋转轮毂在一侧支撑一个或多个致动器臂，另一侧支撑音圈电机的线圈，使得该磁轴承可以是用于非常小的紧凑且低噪音的盘驱动器盒的中心枢轴。

公开(公告)号：US5763972A

公开(公告)日：1998-06-09

申请号：US767310

申请日：1996-12-16

申请人： Christophe Bernus ,  Patrice Jamain ,  Jean-Pierre Roland

发明人： Christophe Bernus ,  Patrice Jamain ,  Jean-Pierre Roland

IPC分类号： F16C32/04 ,  F16C39/06 ,  H02K7/09

CPC分类号： F16C32/0465 ,  F16C32/0446 ,  F16C32/0459 ,  F16C32/048

摘要： A magnetic bearing for magnetic centering of a rotor relative to a stator relative to two radial centering axes includes actuators operating relative to centering axes and speed sensors having sensing axes coplanar with the centering axes. The rotor includes a ring partly defining the airgaps of the actuators and the sensors.

摘要翻译： 相对于两个径向定心轴，转子相对于定子磁中心的磁性轴承包括相对于具有与定心轴共面的感测轴的定心轴和速度传感器相对的致动器。 转子包括部分地限定致动器和传感器的气隙的环。

公开(公告)号：US5741374A

公开(公告)日：1998-04-21

申请号：US856456

申请日：1997-05-14

申请人： Lin Li

发明人： Lin Li

IPC分类号： C22C38/00 ,  C22C38/10 ,  C22C38/52 ,  C23C8/22 ,  F16C39/06 ,  H01F1/14 ,  H01F1/147

CPC分类号： F16C32/0459 ,  C22C38/10 ,  C23C8/22 ,  F16C32/0468 ,  H01F1/147

摘要： A magnetically soft, Co--Fe--C alloy is disclosed which contains in weight percent, about ______________________________________ Carbon 0.05-0.50 Manganese 0.5 max. Silicon 0.5 max. Phosphorus 0.01 max. Sulfur 0.01 max. Chrominum 1.0 max. Nickel 1.0 max. Molybdenum 0.25 max. Cobalt 14-28 Vanadium 0.1 max. Niobium 0.1 max. Tungsten 0.1 max. ______________________________________ and the balance is essentially iron. The alloy provides a yield strength of up to about 580 MPa (84 ksi) while maintaining ductility and magnetic induction comparable to the known 27Co--Fe soft magnetic alloy. Magnetic and mechanical properties are developed through an annealing heat treatment which is performed after the alloy has been mechanically worked and machined to final shape.

摘要翻译： 公开了一种磁软的Co-Fe-C合金，其以重量百分比计含有约0.05-0.50-锰0.5最大值。 - 硅0.5最大 - 磷0.01 - 硫0.01最大 - Chrominum 1.0最大 - 镍1.0最大 - 钼0.25最大 - 钴14-28 - 钒0.1最大 - 铌0.1最大 - 钨0.1最大 - 平衡本质上是铁。 该合金提供高达约580MPa（84ksi）的屈服强度，同时保持与已知的27Co-Fe软磁合金相当的延展性和磁感应。 通过退火热处理开发磁性和机械性能，退火热处理在合金机械加工并加工成最终形状之后进行。

公开(公告)号：US5740082A

公开(公告)日：1998-04-14

申请号：US576232

申请日：1995-12-21

申请人： Donald L. Edberg

发明人： Donald L. Edberg

IPC分类号： B64G1/22 ,  F16C39/06 ,  G12B5/00 ,  G01B101/10

CPC分类号： F16C32/0444 ,  B64G1/22 ,  G12B5/00

摘要： A position sensor is structurally integrated within a wide-gap magnetic actuator. Being an integral structure, the sensor provides voltages representative of a relative shift in position of the actuator's armature and pole piece from the neutral or base position and represents the actual position between pole piece and armature. Suitably the position sensor includes a photosensitive surface in the shape of a circular disk that is attached to the actuator's paddle and a narrow beam light source which is attached to the actuator's pole piece and oriented to produce a small spot of light on the photosensitive surface.

摘要翻译： 位置传感器结构地集成在宽间隙磁性致动器内。 作为一体的结构，传感器提供代表致动器的电枢和极片从中性点或基座位置的位置的相对偏移的电压，并且表示极片和电枢之间的实际位置。 适当地，位置传感器包括附接到致动器的叶片的圆盘形状的感光表面和附接到致动器的极片并被定向成在光敏表面上产生小斑点的窄光束光源。

公开(公告)号：US5739607A

公开(公告)日：1998-04-14

申请号：US707021

申请日：1996-09-11

申请人： David B. Wood, III

发明人： David B. Wood, III

IPC分类号： F16C25/08 ,  F16C39/06 ,  H02K7/08 ,  H02K7/09

CPC分类号： H02K7/09 ,  F16C19/542 ,  F16C25/086 ,  F16C32/0402 ,  F16C32/048 ,  H02K7/083 ,  F16C39/06 ,  Y10T408/16 ,  Y10T409/309352 ,  Y10T409/309464 ,  Y10T409/30952

摘要： A machine tool spindle is supported at its spindle nose in a front, rolling element mechanical anti-friction thrust and radial support bearing means. The middle and rear end of the spindle is supported in a magnetic radial rear bearing and further supported at a generally mid-position of the spindle by magnetic radial mid bearing. The two magnetic radial bearings provide radial suspension of the spindle and permit the spindle to slide freely. A spindle flange is axially forced by a magnetic axial thrust bearing to vary the pre-load of the mechanical anti-friction thrust and radial support bearing.

摘要翻译： 机床主轴在其主轴头处支撑在前部，滚动元件机械抗摩擦推力和径向支撑轴承装置中。 主轴的中后端支撑在磁性径向后轴承中，并通过磁径向中间轴承进一步支撑在主轴的大致中间位置。 两个磁性径向轴承提供主轴的径向悬挂，并允许主轴自由滑动。 主轴法兰由磁轴向推力轴承轴向推动，以改变机械抗摩擦推力和径向支承轴承的预载荷。

公开(公告)号：US5731831A

公开(公告)日：1998-03-24

申请号：US614171

申请日：1996-03-08

申请人： Kaoru Murabe ,  Tetsuya Katayama ,  Osamu Komura ,  Mikio Nakasugi ,  Taku Fukita ,  Isshin Sato

发明人： Kaoru Murabe ,  Tetsuya Katayama ,  Osamu Komura ,  Mikio Nakasugi ,  Taku Fukita ,  Isshin Sato

IPC分类号： F16C17/02 ,  F16C33/04 ,  F16C33/10 ,  F16C33/24 ,  F16C39/06 ,  G02B26/12 ,  G01D15/16 ,  F16C32/06

CPC分类号： F16C33/1075 ,  F16C33/043 ,  F16C39/063 ,  G02B26/121

摘要： A dynamic-pressure gas bearing structure includes a columnar shaft made of a silicon-nitride-based ceramic sintered body, a hollow cylindrical sleeve opposed to the shaft as keeping a clearance in a radial direction, the sleeve being made of a silicon-nitride-based ceramic sintered body, and at least three flat face portions located on a peripheral surface of the shaft and at equal intervals to the circumference along the peripheral surface. The flat face portion includes a plurality of unit planes continuously formed at predetermined angles to a direction of the circumference on the peripheral surface of the shaft. The unit planes are formed so as to extend substantially in parallel with an axial direction of the shaft.

摘要翻译： 动压气体轴承结构包括由氮化硅基陶瓷烧结体制成的柱状轴，与轴相对的中空圆柱形套筒，沿径向保持间隙，套筒由氮化硅 - 以及至少三个平面部分，其位于所述轴的外周表面上，并且沿着所述周边表面与所述圆周等间隔。 平面部包括以与轴的圆周面上的圆周方向成预定角度连续形成的多个单位面。 单元平面形成为基本上与轴的轴向平行地延伸。