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41. 发明授权

US5355041A Magnetic bearing apparatus 失效
标题翻译：磁性轴承装置
公开(公告)号：US5355041A
公开(公告)日：1994-10-11
申请号：US038979
申请日：1993-03-29
申请人： Yuji Shirao , Eishi Marui , Mamoru Suzuki
发明人： Yuji Shirao , Eishi Marui , Mamoru Suzuki
IPC分类号： F16C32/04 , F16C39/06 , H02K7/09
CPC分类号： F16C32/048 , F16C32/0448 , F16C32/0459
摘要： A radial magnetic bearing apparatus suspends a rotating shaft and stably operates at a level exceeding a bending intrinsic vibration value of the rotating shaft by controlling magnetic forces generated by control coils wound around control magnetic poles. Grooves are provided on the surface of each control magnetic pole facing the rotating shaft, and sensor coils are wound to pass through the grooves in order to detect the position of the rotating shaft in the radial direction. A part of each control magnetic pole may be used as magnetic poles of an inductance-type displacement sensor.
摘要翻译：径向磁轴承装置通过控制缠绕在控制磁极上的控制线圈产生的磁力，使旋转轴悬挂并稳定地工作在超过旋转轴的弯曲固有振动值的水平。在每个控制磁极的面向旋转轴的表面上设置有凹槽，并且传感器线圈被卷绕以通过凹槽，以便检测旋转轴在径向方向上的位置。每个控制磁极的一部分可以用作电感型位移传感器的磁极。

42. 发明授权

US3155437A Electromagnetic bearing 失效
标题翻译：电磁轴承
公开(公告)号：US3155437A
公开(公告)日：1964-11-03
申请号：US35653853
申请日：1953-05-21
申请人： NORTH AMERICAN AVIATION INC
发明人： KINSEY EUGENE E , BRANDES RAYMOND E , EVANS WALTER R , SAWYER BRUCE A
IPC分类号： F16C39/06 , G01C19/24
CPC分类号： F16C32/0448 , F16C32/0451 , F16C32/0491 , F16C2370/00 , G01C19/24

43. 发明授权

US10835652B2 Magnetically-levitated blood pump with optimization method enabling miniaturization 有权
公开(公告)号：US10835652B2
公开(公告)日：2020-11-17
申请号：US15064960
申请日：2016-03-09
申请人： Worldheart Corporation , Carnegie Mellon University
发明人： Michael R. Ricci , James F. Antaki , Josiah E. Verkaik , David B. Paden , Shaun T. Snyder , Bradley E. Paden , Jingchun Wu
IPC分类号： A61M1/10 , A61M1/12 , F16C32/04
CPC分类号： A61M1/1015 , A61M1/10 , A61M1/101 , A61M1/1031 , A61M1/1034 , A61M1/1086 , A61M1/122 , A61M1/127 , F16C32/0448 , F16C2316/18 , Y10T29/49012
摘要： A magnetically-levitated blood pump with an optimization method that enables miniaturization and supercritical operation. The blood pump includes an optimized annular blood gap that increases blood flow and also provides a reduction in bearing stiffness among the permanent magnet bearings. Sensors are configured and placed optimally to provide space savings for the motor and magnet sections of the blood pump. Rotor mass is increased by providing permanent magnet placement deep within the rotor enabled by a draw rod configuration.

44. 发明授权

US09746028B2 Self-sensing active magnetic bearing systems and methods 有权
公开(公告)号：US09746028B2
公开(公告)日：2017-08-29
申请号：US14572369
申请日：2014-12-16
申请人： GENERAL ELECTRIC COMPANY
发明人： Christoph Boeld , Mohamed Osama
IPC分类号： H02K7/09 , F16C32/04 , H01F41/02 , F16C43/00 , H02K15/08
CPC分类号： F16C32/0451 , F16C32/0448 , F16C32/0474 , F16C32/048 , F16C43/00 , H01F41/02 , H02K7/09 , H02K15/08
摘要： One embodiment describes a rotary machine system, which includes a stator with a first tooth, a second tooth, a third tooth, and a fourth tooth; a first electromagnet that includes a first electromagnet wire wrapped around the second tooth and the third tooth and that generates a first magnetic field to attract a drive shaft; a first integrated position sensor, which includes a first sensor wire that carries a first current wrapped around the first tooth and the second tooth; a second integrated sensor, which includes a second sensor wire that carries a second current wrapped around the third tooth and the fourth tooth; and a controller that determines current position of the drive shaft based at least on change of inductance of the first sensor wire and the second sensor wire, and that instructs the first electromagnet to adjust magnitude of the first magnetic field based at least in part on the current position.

45. 发明申请

US20150023803A1 MAGNETICALLY LEVITATED AND DRIVEN BLOOD PUMP AND METHOD FOR USING THE SAME 审中-公开
标题翻译：磁力诱导和驱动血液泵及其使用方法
公开(公告)号：US20150023803A1
公开(公告)日：2015-01-22
申请号：US14510449
申请日：2014-10-09
申请人： CircuLite, Inc.
发明人： Bryan Patrick Fritz , Martin David Simon
IPC分类号： F04D25/06 , F04D27/00
CPC分类号： F04D25/06 , A61M1/1008 , A61M1/101 , A61M1/1015 , A61M1/1031 , A61M1/1086 , A61M1/122 , F04D27/001 , F16C32/0448 , F16C2316/18
摘要： A device for pumping blood, includes a housing having a distal end adapted to be coupled to a catheter, a proximal end having an outlet, and a tubular body extending between the distal and proximal ends along an axis. A rotor is rotatably disposed within the housing. A first magnetic bearing is operative to levitate the rotor along the axis within the housing. A second magnetic bearing controls a rotational frequency of the rotor. A third magnetic bearing controls a radial position of the rotor.
摘要翻译：一种用于泵送血液的装置，包括具有适于联接到导管的远端的外壳，具有出口的近端和沿着轴线在远端和近端之间延伸的管状体。转子可旋转地设置在壳体内。第一磁性轴承用于沿壳体内的轴线漂浮转子。第二磁轴承控制转子的旋转频率。第三磁轴承控制转子的径向位置。

46. 发明申请

US20140377106A1 SENSORLESS MAGNETIC LEVITATION VACUUM PUMP AND SENSORLESS MAGNETIC LEVITATION DEVICE 有权
标题翻译：无感磁力吸入真空泵和无感磁力检测装置
公开(公告)号：US20140377106A1
公开(公告)日：2014-12-25
申请号：US14370506
申请日：2012-12-21
申请人： SHIMADZU CORPORATION
发明人： Junichiro Kozaki , Yoshihiro Nagano
IPC分类号： F04D29/058 , F04D13/06 , F04D19/04
CPC分类号： F04D29/058 , F04D13/06 , F04D19/04 , F04D19/042 , F04D19/048 , F16C32/0448 , F16C32/0489 , F16C2360/45 , H02K7/09
摘要： An electromagnet has a core with a pair of magnetic poles, a primary coil wound around the core, and a series circuit of a first auxiliary coil wound around the first magnetic pole of the core, a second auxiliary coil wound around the second magnetic pole of the core, and capacitors, and is connected in parallel to the primary coil and the series circuit. The first and the second magnetic poles are each divided into a plurality of split magnetic poles. The first auxiliary coil is composed of a plurality of split auxiliary coils wound around the respective pole in the plurality of split magnetic poles of the first magnetic pole so that the mutual inductance with the primary coil becomes zero. The second auxiliary coil is composed of a plurality of split auxiliary coils wound around the respective pole in a plurality of split magnetic poles of the second magnetic pole so that the mutual inductance with the primary coil becomes zero.
摘要翻译：电磁体具有芯体，具有一对磁极，缠绕在磁芯上的初级线圈和缠绕在磁芯的第一磁极上的第一辅助线圈的串联电路，绕第二磁极缠绕的第二辅助线圈核心和电容器，并联并联到初级线圈和串联电路。第一和第二磁极分别分成多个分开的磁极。第一辅助线圈由在第一磁极的多个分割磁极中的各极上缠绕的多个分割辅助线圈组成，使得与初级线圈的互感为零。第二辅助线圈由在第二磁极的多个分割磁极中缠绕在各极上的多个分割辅助线圈构成，使得与初级线圈的互感为零。

47. 发明授权

US08879231B2 Method and arrangement for the sensorless operation of magnetic bearings 有权
标题翻译：磁性轴承无传感器运行的方法和布置
公开(公告)号：US08879231B2
公开(公告)日：2014-11-04
申请号：US12671326
申请日：2008-07-19
申请人： Michael Katzschmann , Peter Kornetzky
发明人： Michael Katzschmann , Peter Kornetzky
IPC分类号： H01H47/00 , F16C32/04
CPC分类号： F16C32/0448
摘要： A sensor system for a magnetic bearing, which has two actuator coils, two clocked power output stages, a current sensor for detecting those currents in the actuator coils which are encumbered with a ripple current, and a sensor interface. The clocked power output stages provide a pulse-width-modulated output voltage, the pulse width of which is narrowed or widened by small amounts in a predefined order, and the pulse widths of the clocked power output stages are modulated in a fixed phase relationship with respect to one another. The sensor system specifies a sensor system for a magnetic bearing with a clocked power output stage. A magnetic bearing, a control device for a magnetic bearing and a method for detecting the position in a magnetic bearing are also disclosed.
摘要翻译：一种用于磁性轴承的传感器系统，其具有两个致动器线圈，两个时钟功率输出级，用于检测施加有纹波电流的致动器线圈中的那些电流的电流传感器和传感器接口。时钟功率输出级提供脉冲宽度调制的输出电压，其脉冲宽度以预定顺序变窄或加宽少量，并且时钟功率输出级的脉冲宽度与相互尊重传感器系统为具有时钟功率输出级的磁轴承指定传感器系统。还公开了磁轴承，用于磁轴承的控制装置和用于检测磁轴承中的位置的方法。

48. 发明申请

US20140252899A1 ROTATING ELECTRICAL MACHINE AND METHOD FOR MEASURING A DISPLACEMENT OF A ROTOR OF A ROTATING ELECTRICAL MACHINE 审中-公开
标题翻译：旋转电机和旋转电机转子的位移测量方法
公开(公告)号：US20140252899A1
公开(公告)日：2014-09-11
申请号：US14355649
申请日：2012-11-01
申请人： ETH ZURICH
发明人： Andreas Looser
IPC分类号： H02K11/00 , G01B7/14 , H02K7/09
CPC分类号： H02K7/09 , F16C32/0402 , F16C32/0448 , G01B7/14 , G01D5/202 , G01P3/49 , H02K11/225
摘要： A rotating electrical machine includes a stator, a rotor and at least one active magnetic bearing including a bearing winding, which is an air-gap winding, and includes at least a first phase winding and a second phase winding. A measurement arrangement measures the radial displacement of the rotor by injecting a displacement measurement injected signal into at least one section of at least one of the bearing windings of one of the magnetic bearings, and capturing at least one displacement measurement signal wherein this displacement measurement signal depends on the rotor displacement in a radial direction relative to the stator, this dependency being due to eddy currents in the rotor induced by the displacement measurement injected signal.
摘要翻译：旋转电机包括定子，转子和至少一个主动磁轴承，其包括作为气隙绕组的轴承绕组，并且至少包括第一相绕组和第二相绕组。测量装置通过将位移测量注入信号注入到一个磁性轴承的至少一个轴承绕组的至少一个部分中并且捕获至少一个位移测量信号来测量转子的径向位移，其中该位移测量信号取决于相对于定子在径向上的转子位移，这种依赖性是由位移测量注入信号引起的转子中的涡流引起的。

49. 发明授权

US07977839B2 Magnetic bearing device and method 有权
标题翻译：磁轴承装置及方法
公开(公告)号：US07977839B2
公开(公告)日：2011-07-12
申请号：US12892376
申请日：2010-09-28
申请人： Toshimitsu Barada , Toshiya Yoshida
发明人： Toshimitsu Barada , Toshiya Yoshida
IPC分类号： F16C32/04
CPC分类号： F16C32/0457 , F16C32/0448 , F16C2360/45
摘要： An energy-saving magnetic bearing device with no bias current for making the relation between the excitation current and the magnetic force of the electromagnet linear is provided. In a magnetic bearing device for supporting a rotor 1 serving as the magnetic piece in a levitating state allowing free rotation at a specified position by the magnetic force of a pair of electromagnets 2, 3, the electromagnets 2, 3 are constituted to interpose the rotor 1 and face each other. A driver 204 is a PWM (pulse width modulation) type driver for controlling the excitation current in the electromagnets 2, 3 by modulating the pulse width of a voltage driven at a specified carrier frequency fc, and includes a resonator means for electrically resonating at a frequency equal to the carrier frequency fc. When an excitation current flows in either one of the pair of opposing electromagnets 2, 3, then the other magnet is regulated so that the DC component in the electromagnet excitation current is zero, and a voltage is applied via the resonator means to the electromagnet whose DC component in the excitation current is discharged to zero.
摘要翻译：提供了一种无偏置电流的节能磁轴承装置，用于使励磁电流与电磁铁线性的磁力之间的关系。在用于以悬浮状态支撑用作磁片的转子1的磁轴承装置中，通过一对电磁体2,3的磁力使指定位置自由旋转，电磁体2,3构成为将转子 1并面对彼此。驱动器204是用于通过调制以特定载波频率fc驱动的电压的脉冲宽度来控制电磁体2,3中的激励电流的PWM（脉冲宽度调制）型驱动器，并且包括谐振器装置，用于在频率等于载波频率fc。当励磁电流在一对相对电磁体2,3中的任一个中流动时，另一个磁体被调节，使得电磁铁激励电流中的直流分量为零，并且通过谐振器装置将电压施加到电磁体，励磁电流中的直流分量放电到零。

50. 发明申请

US20090189469A1 MAGNETIC BEARING APPARATUS 有权
标题翻译：磁力轴承装置
公开(公告)号：US20090189469A1
公开(公告)日：2009-07-30
申请号：US12359120
申请日：2009-01-23
申请人： Toshimitsu BARADA , Toshiya YOSHIDA
发明人： Toshimitsu BARADA , Toshiya YOSHIDA
IPC分类号： H02K7/09
CPC分类号： F16C32/0448 , F16C32/0457 , F16C32/0463 , F16C2360/45
摘要： A magnetic bearing apparatus supports a rotating object using magnetic levitation by a magnetic force of electromagnets. The magnetic bearing apparatus includes a PWM driver configured to supply exciting currents to the electromagnets, a driver power source configured to drive the PWM driver, and a displacement error signal removing section configured to extract a displacement error signal of the displacement information from a current flowing through the driver power source and to remove the displacement error signal from the displacement information.
摘要翻译：磁性轴承装置通过电磁铁的磁力使用磁悬浮来支撑旋转物体。磁轴承装置包括：PWM驱动器，被配置为向电磁体提供励磁电流;驱动器电源，被配置为驱动PWM驱动器;以及位移误差信号去除部，被配置为从流动的电流中提取位移信息的位移误差信号通过驱动器电源并从位移信息中去除位移误差信号。

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