公开(公告)号：EP0845085B1

公开(公告)日：2000-05-31

申请号：EP96928626.9

申请日：1996-09-02

申请人： Magnetic Patent Holdings Ltd.

发明人： SHIRAZEE, Nabeel

IPC分类号： F16C39/06

CPC分类号： F16C32/0451 ,  F16C32/0459

摘要： A suspension system for magnetically suspending an object (O) comprises an electromagnetic coil (L) having an axially extending core (13) of magnetically permeable material and a permanent magnet (14) disposed on its axis. A permanent magnet (10) is also provided in the object (O) and is arranged such that it is in attraction with the permanent magnet (14) on the coil (L), and with the magnetically permeable core (13) so that the object (O) is suspended at a position below the coil (L) by the attractive force. Sensors (15, 16) on the coil (L) detect the magnetic field of the permanent magnet (10) in the object (O), and provide signals to a control circuit, which applies current to the coil (L) to attract the object (O) when the detected field is below a predetermined limit and to repel the object when the detector field is above a predetermined limit. In this manner, the object (O) is held in position using a relatively low current, since the coil (L) is only energised when the object moves away from the position in which it is held by the field of the permanent magnets (10, 14).

公开(公告)号：EP0875685A3

公开(公告)日：2000-04-19

申请号：EP98107616.9

申请日：1998-04-27

申请人： NTN CORPORATION

发明人： Suzuki, Nobuyuki ,  Yamada, Hiroyuki

IPC分类号： F16C32/00 ,  F16C39/06

CPC分类号： F16C32/0603 ,  F16C32/00 ,  F16C32/0402 ,  F16C32/0444 ,  F16C32/047 ,  F16C32/06 ,  Y10T409/309352

摘要： A combined externally pressurized gas and magnetic bearing assembly (3) includes an externally pressurized gas bearing (9) and a magnetic bearing (8) that are integrated together so as to have component parts common to both of the externally pressurized gas bearing (9) and the magnetic bearing (8). The externally pressurized gas bearing (9) or the magnetic bearing (8) may be disposed within an axial extent of the magnetic bearing (8) or the externally pressurized gas bearing (9), respectively. A spindle device utilizing the combined externally pressurized gas and magnetic bearing assembly (3) is also provided which includes a housing for supporting a main shaft (4) rotatably through the combined externally pressurized gas and magnetic bearing assembly (3). This combined externally pressurized gas and magnetic bearing assembly (3) can be applied not only to the radial bearing, but also to the axial bearing.

公开(公告)号：EP0467341B1

公开(公告)日：1999-09-22

申请号：EP91111965.9

申请日：1991-07-17

申请人： KOYO SEIKO CO., LTD.

发明人： Takahata, Ryoichi ,  Eguchi, Shoji

IPC分类号： F16C39/06 ,  H02N15/04

CPC分类号： F16C32/0438 ,  Y10S505/877 ,  Y10S505/903

公开(公告)号：EP0695872B1

公开(公告)日：1999-04-07

申请号：EP95111381.0

申请日：1995-07-20

申请人： Pfeiffer Vacuum GmbH

发明人： Larsonneur, René ,  Bernhardt, Helmut

IPC分类号： F04D19/04 ,  F16C39/06

CPC分类号： F16C32/0444 ,  F04D19/048 ,  F16C2360/45

公开(公告)号：EP0815365B1

公开(公告)日：1998-12-23

申请号：EP96907507.6

申请日：1996-03-20

申请人： TELDIX GmbH

发明人： BICHLER, Udo ,  ECKARDT, Thomas

IPC分类号： F16C39/06

CPC分类号： H02K7/09 ,  B64G1/28 ,  B64G1/32 ,  B64G1/36 ,  F16C32/0493 ,  F16C2326/47 ,  F16C2361/55 ,  F16F15/315 ,  H02K7/025 ,  Y02E60/16

摘要： In a magnetically mounted oscillation-damped flywheel, both the force generating systems (M1, M2) for the radial drive and transverse movement and the corresponding control sensors (SE1...SE4) are located in the wheel hub. Parasitic oscillations can thus be drastically attenuated without any adverse effect on the wheel's swivelling range.

摘要翻译： 在磁力安装的减振飞轮中，用于径向驱动和横向运动的力生成系统（M1，M2）和相应的控制传感器（SE1 ... SE4）位于轮毂中。 寄生振荡因此可以大大减弱，而对轮子的旋转范围没有任何不利影响。

公开(公告)号：EP0560234B1

公开(公告)日：1998-06-10

申请号：EP93103611.5

申请日：1993-03-05

申请人： HITACHI, LTD.

发明人： Matsushita, Osami ,  Yoneyama, Mitsuho ,  Takahashi, Naohiko ,  Fukushima, Yasuo ,  Hiroshima, Minoru ,  Kaneki, Tadashi ,  Abe, Yoshiaki ,  Sakanashi, Naofumi

IPC分类号： F16C39/06

CPC分类号： F16C32/0453 ,  F16C32/048

公开(公告)号：EP0829655A1

公开(公告)日：1998-03-18

申请号：EP97121219.6

申请日：1992-03-13

申请人： KOYO SEIKO CO., LTD. ,  SHIKOKU RESEARCH INSTITUTE INCORPORATED

发明人： Takahata, Ryoichi ,  Shibayama, Motoaki ,  Takaichi, Hiroshi

IPC分类号： F16C39/06

CPC分类号： F16C32/0438 ,  F16C2240/40 ,  F16C2300/34

摘要： A superconducting bearing device comprises an annular permanent magnet portion 2 disposed concentrically with a rotary body 1 in the form of a vertical shaft, and superconductors 8 opposed to the lower end face of the magnet portion 2 and vertically spaced apart therefrom. The permanent magnet portion 2 comprises a disk 4 fixedly mounted on the rotary body 1, and annular permanent magnets 6a, 6b arranged on the disk 4 at a spacing radially of the rotary body 1. Each of the magnets 6a, 6b has upper and lower ends magnetized to polarities opposite to each other, and the adjacent magnets 6a, 6b are magnetized to polarities opposite to each other at the upper ends, as well as at the lower ends. The radial spacing between the magnets 6a, 6b is optimized in accordance with the radial dimension (width) of the magnets 6a, 6b. This improves the device in load capacity and rigidity and prevents the deflection of axis of the rotary body 1, enabling the bearing device to support the rotary body 1 in a noncontact state with good stability.

摘要翻译： 超导轴承装置包括与垂直轴形式的旋转体1同心设置的环形永磁体部分2和与磁体部分2的下端面相对并与其垂直间隔开的超导体8。 永磁体部分2包括固定地安装在旋转体1上的盘4和以旋转体1的径向间隔布置在盘4上的环形永磁体6a，6b。每个磁体6a，6b具有上下 端部被磁化成彼此相反的极性，并且相邻的磁体6a，6b在上端以及在下端被磁化成彼此相反的极性。 磁体6a，6b之间的径向间隔根据磁体6a，6b的径向尺寸（宽度）而优化。 这提高了装置的负载能力和刚性，并且防止旋转体1的轴线的偏转，使得轴承装置能够以非常接触的状态将旋转体1支撑在良好的稳定性上。

公开(公告)号：EP0739457B1

公开(公告)日：1998-03-18

申请号：EP95903893.6

申请日：1995-01-10

申请人： Sulzer Electronics AG ,  LUST ANTRIEBSTECHNIK GmbH

发明人： SCHÖB, Reto

IPC分类号： F16C39/06

CPC分类号： F16C32/0497 ,  F16C32/0451

公开(公告)号：EP0662262B1

公开(公告)日：1998-03-18

申请号：EP93922337.6

申请日：1993-09-22

申请人： MAGNETIC BEARING TECHNOLOGIES, INC.

发明人： PINKERTON, Joseph, F.

IPC分类号： H02K7/09 ,  F16C39/06

CPC分类号： F16C32/044 ,  F16C32/0436

摘要： 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 finite conductivity material. In the preferred embodiment, each loop is subjected to two magnetic fields simultaneously and its magnets are equally subjected to the fields, thus producing equal and opposite magnetic forces so that no current will flow. However, when the loop deviates laterally from its prescribed path, the interior of the loop is subjected to unequal fields. Thus producing current to exert a force to move the loop back toward the path.

公开(公告)号：EP0816700A1

公开(公告)日：1998-01-07

申请号：EP97401528.1

申请日：1997-07-01

申请人： AEROSPATIALE Société Nationale Industrielle

发明人： Lambert, Charles

IPC分类号： F16C39/06

CPC分类号： F16C32/0465 ,  F16C32/0472 ,  F16C32/048

摘要： Un palier magnétique pour le centrage actif selon au moins un axe de centrage d'un second corps mobile par rapport à un premier corps comporte :

une première portion (11) comportant deux plaques ferromagnétiques parallèles (14), un premier noyau (15) entouré d'un premier bobinage (16) et des moyens (18) à aimantation permanente perpendiculaire auxdites plaques ferromagnétiques,
une seconde portion (12) séparée des plaques ferromagnétiques de la première portion par une paire d'entrefers (19, 20) d'épaisseur variable parallèlement à l'axe de centrage.

Les moyens à aimantation permanente sont décalés par rapport au noyau selon une direction sensiblement parallèle à la paire d'entrefers, et les plaques ferromagnétiques sont munies d'encoches (22, 22' ...) disposées en regard des moyens à aimantation permanente et orientées transversalement à la paire d'entrefers.

摘要翻译： 中央伊辛相对于第一主体的第二主体的轴线的磁轴承包括其被固定到所述本体中的一个的第一部分（11）所有。 该部分具有两个铁磁平行板，一个第一芯（15）由第一线圈（16）和垂直于该铁磁性板的两个永磁体（18）包围。 固定在另一主体的第二部分（12）由铁磁板由可变厚度平行的一对空气间隙（19,20）与环形轴分分离。 这些空气间隙沿所述板的线相对移动（100）平行的延伸。 永久磁铁被从在平行于气隙的方向上的轮毂位移。 板具有凹口（22,22“）的面向所述永磁体和横向于间隔物。