公开(公告)号：US09695871B2

公开(公告)日：2017-07-04

申请号：US14290199

申请日：2014-05-29

Applicant: SKF Magnetic Mechatronics ,  Aktiebolaget SKF

Inventor： Philipp Krebs ,  Jens Anders ,  Eddy Herisse ,  Frederic Ponson

IPC: F16C32/04 ,  F16C39/02 ,  F16C23/04 ,  F16C33/06 ,  H02K7/09

CPC classification number: F16C32/0402 ,  F16C23/041 ,  F16C32/0442 ,  F16C32/047 ,  F16C32/0474 ,  F16C33/06 ,  F16C39/02 ,  F16C2240/40 ,  F16C2240/50 ,  F16C2360/44 ,  H02K7/09

Abstract: An assembly that includes a rotating shaft supported with respect to a stationary housing by at least one active magnetic bearing presenting a mean radial air gap and at least one auxiliary bearing having a bushing fixed to the housing and a sleeve fixed on the rotating shaft. The bushing and the sleeve have opposite surfaces that define a clearance (E2) which is less than the mean radial air gap (E1). The bushing and the sleeve each exhibit symmetry around a longitudinal axis of the shaft and have different profiles in a longitudinal cross-section including the longitudinal axis to optimize the contact pressure distribution when the rotating shaft lands on the auxiliary bearing.

公开(公告)号：US20170067756A1

公开(公告)日：2017-03-09

申请号：US15259151

申请日：2016-09-08

Applicant: Yves Dupuis ,  Joaquim Da Silva

Inventor： Yves Dupuis ,  Joaquim Da Silva

IPC: G01D5/20 ,  H02K7/09 ,  H02K11/215

CPC classification number: G01D5/2046 ,  G01D5/2013 ,  H02K7/09 ,  H02K11/215

Abstract: This radial position sensor measures the radial position of a rotor within a stator. The sensor provides measuring means for measuring the position of the rotor along a first axis radial to a rotation axis of the rotor and along a second axis perpendicular to the first axis. The measuring means includes four magnetic poles, among which two poles are diametrically opposed along the first axis and two other poles are diametrically opposed along the second axis, the magnetic poles distributed, on the inner surface of the stator, with alternating magnetic polarities around the circumference of the stator. Alternatively, the measuring means includes eight magnetic poles distributed, on the inner surface of the stator, with alternating magnetic polarities around the circumference of the stator and are arranged so that each pole deviates by an angle of approximately 30° from the nearest axis among the first axis and the second axis.

Abstract translation: 该径向位置传感器测量定子内的转子的径向位置。 该传感器提供测量装置，用于测量转子沿第一轴径向旋转轴线的旋转轴线和垂直于第一轴线的第二轴线的位置。 测量装置包括四个磁极，其中两个极沿着第一轴线直径相对，另外两个磁极沿着第二轴线直径相对，磁极分布在定子的内表面上，交替的磁极性围绕着 定子周长。 或者，测量装置包括在定子的内表面上分布的八个磁极，其周围围绕定子的交变磁极性，并且被布置成使得每个磁极偏离距离定子的最近轴大约30°的角度 第一轴和第二轴。

公开(公告)号：US09360047B2

公开(公告)日：2016-06-07

申请号：US14571544

申请日：2014-12-16

Applicant: Lakdar Sadi-Haddad ,  Joaquim Da Silva ,  Olivier Lemarchand

Inventor： Lakdar Sadi-Haddad ,  Joaquim Da Silva ,  Olivier Lemarchand

IPC: F16C32/04

CPC classification number: F16C32/0444 ,  F16C32/0451 ,  F16C32/0455

Abstract: A digital nonlinear corrector of an active magnetic bearing receiving an input signal x(t) and outputting an output control signal u(t) for controlling the position of said active magnetic bearing, the input signal being digitalized by a ADC circuit and provided to an adder, the digital nonlinear corrector comprising a closed control loop delivering an intermediary sequence of numbers y[kT] and having a direct branch comprising a first proportional gain circuit and a feedback branch comprising a series connection of a low-pass filter and a dead zone circuit, such that said low-pass filter is activated when determined upper and lower values of said output control signal are reached, the output control signal reproducing the input signal when these determined upper and lower values are not reached.

Abstract translation: 接收输入信号x（t）并输出用于控制所述主动轴承的位置的输出控制信号u（t）的有源磁轴承的数字非线性校正器，所述输入信号由ADC电路数字化并提供给 加法器，所述数字非线性校正器包括传递数字y [kT]的中间序列的闭合控制环，并具有包括第一比例增益电路和反馈支路的直接分支，所述反馈支路包括低通滤波器和死区的串联连接 电路，使得当达到所述输出控制信号的确定的上限和下限值时，所述低通滤波器被激活，当没有达到这些确定的上限和下限值时，输出控制信号再现输入信号。

公开(公告)号：US20160153492A1

公开(公告)日：2016-06-02

申请号：US14946790

申请日：2015-11-20

Applicant: Yvon BAUCÉ ,  Francis BIENAIME ,  Eduardo CARRASCO

Inventor： Yvon BAUCÉ ,  Francis BIENAIME ,  Eduardo CARRASCO

IPC: F16C32/04 ,  F04D29/058

CPC classification number: F16C32/0482 ,  F04D29/058 ,  F16C32/0446 ,  F16C32/0461 ,  F16C32/047 ,  F16C43/00 ,  F16C2360/45 ,  H01F5/02 ,  H01F7/06 ,  H01R4/2416

Abstract: A magnetic bearing, comprising: a magnetic base; at least three actuator bobbins mounted on the magnetic base; and magnetic sensors associated with the actuator bobbins. At least one magnetic system amidst the magnetic actuators and the magnetic sensors comprises together: a coil holder; a coil wound up around the coil holder; and a connector device integrated to the coil holder and designed for plugging at least one wire. Additionally disclosed is an apparatus comprising such a magnetic bearing and a method for manufacturing such a magnetic bearing.

Abstract translation: 一种磁性轴承，包括：磁性基座; 至少三个执行机构线轴安装在磁性基座上; 以及与致动器线轴相关联的磁传感器。 磁致动器和磁传感器中的至少一个磁系统包括在一起：线圈架; 卷绕在线圈架周围的线圈; 以及连接器装置，其被集成到线圈架并被设计用于插入至少一根导线。 另外公开了包括这种磁轴承的装置和用于制造这种磁轴承的方法。

公开(公告)号：US20160025518A1

公开(公告)日：2016-01-28

申请号：US14809576

申请日：2015-07-27

Applicant: Bertrand HAFFRAY ,  Olivier LEMARCHAND

Inventor： Bertrand HAFFRAY ,  Olivier LEMARCHAND

IPC: G01D5/20

CPC classification number: F16C32/0446 ,  F16C32/0455 ,  G01D5/2013 ,  G01D5/225

Abstract: A position detection device of active magnetic bearings (AMB's) maintaining the position of a rotating shaft and comprising two sensing inductance coils, the position detection device comprising a programmable digital component for generating a 25 KHz square waveform signal, a current amplifier receiving the 25 KHz square waveform signal and injecting two identical control currents in the two sensing inductance coils, a differential amplifier for amplifying a voltage difference between the resulting voltages in the two sensing inductance coils and, depending on the displacement of the rotating shaft, an analog to digital (A/D) converter for delivering a position value from the voltage difference.

Abstract translation: 一种主动磁轴承（AMB）的位置检测装置，其保持旋转轴的位置并且包括两个感测电感线圈，该位置检测装置包括用于产生25KHz方波信号的可编程数字分量，接收25KHz的电流放大器 在两个感测电感线圈中注入两个相同的控制电流的差分放大器，用于放大两个感测电感线圈中产生的电压之间的电压差的差分放大器，并且根据旋转轴的位移，模拟数字（ A / D）转换器，用于从电压差传递位置值。

公开(公告)号：US20150300407A1

公开(公告)日：2015-10-22

申请号：US14690924

申请日：2015-04-20

Applicant: Gregory COSSART ,  Joaquim DA SILVA ,  Lakdar SADI-HADDAD

Inventor： Gregory COSSART ,  Joaquim DA SILVA ,  Lakdar SADI-HADDAD

IPC: F16C32/04

CPC classification number: H02P23/26 ,  F16C32/0446 ,  G01D5/2013

Abstract: An electronic magnetic bearing controller for controlling the position of a rotor of an electrical machine supported by an active magnetic bearing the position of which being measured by at least one inductive position sensor having an inductive coil, comprising an automatic reactive power compensation device for automatically compensating the reactive power consumed by the inductive position sensor.

Abstract translation: 一种用于控制由主动磁轴承支撑的电​​机的转子的位置的电子磁轴承控制器，其位置由具有感应线圈的至少一个感应位置传感器测量，其包括用于自动补偿的自动无功补偿装置 感应位置传感器消耗的无功功率。

公开(公告)号：US20150177024A1

公开(公告)日：2015-06-25

申请号：US14572849

申请日：2014-12-17

Applicant: Eduardo CARRASCO

Inventor： Eduardo CARRASCO

IPC: G01D5/14

CPC classification number: G01D5/14 ,  F16C32/0446 ,  G01D5/20

Abstract: A rotor sensor target for magnetic bearings, the rotor sensor target comprising a ring-shaped assembly of magnetic material mounted on a generally ring-shaped assembly of non-magnetic material. The magnetic and non-magnetic ring shaped assemblies are coaxially arranged and mounted on a shaft having a longitudinal axis of rotation X′-X. The generally ring-shaped assembly of non-magnetic material comprises at least one ring-shaped slit having the longitudinal axis X′-X and may be made of a cheaper material, such as aluminum. The ring-shaped slit provides flexibility which permits operation over a wide range of temperatures without risking of damaging the ring-shaped assembly of magnetic material.

Abstract translation: 一种用于磁性轴承的转子传感器靶，转子传感器靶包括安装在非磁性材料的大致环形组件上的磁性材料的环形组件。 磁性和非磁性环形组件同轴地布置并安装在具有纵向旋转轴线X'-X的轴上。 非磁性材料的大致环形组件包括具有纵向轴线X'-X的至少一个环形狭缝，并且可以由较便宜的材料例如铝制成。 环形狭缝提供灵活性，其允许在宽范围的温度下操作，而不会损坏磁性材料的环形组件。

公开(公告)号：US20150167734A1

公开(公告)日：2015-06-18

申请号：US14571609

申请日：2014-12-16

Applicant: Luc BAUDELOCQUE ,  Mohamed BENDAOUD ,  Matthieu OLIVA

Inventor： Luc BAUDELOCQUE ,  Mohamed BENDAOUD ,  Matthieu OLIVA

IPC: F16C32/04

CPC classification number: F16C32/0468 ,  F16C32/0476 ,  F16C2300/42 ,  H02K7/09

Abstract: A thrust disc for a magnetic bearing, wherein the thrust disc comprises: a body, which is adapted to be mounted on a shaft and which has a first offset yield strength and a first magnetic permeability, and at least one flange which is fixed to the body in a position where it can interact with a thrust stator in order to form a magnetic bearing and which has a second offset yield strength and a second magnetic permeability; wherein the first offset yield strength is higher than the second offset yield strength; and wherein the first magnetic permeability is smaller than the second magnetic permeability. Additionally, the magnetic bearing can be equipped with such a thrust disc. An apparatus can be equipped with such a magnetic bearing.

Abstract translation: 一种用于磁性轴承的止推盘，其中所述推力盘包括：本体，其适于安装在轴上并且具有第一偏移屈服强度和第一磁导率，以及至少一个凸缘，其固定到 本体位于其中可与推力定子相互作用以形成磁性轴承并具有第二偏移屈服强度和第二磁导率的位置; 其中所述第一偏移屈服强度高于所述第二偏移屈服强度; 并且其中所述第一磁导率小于所述第二磁导率。 此外，磁轴承可以配备有这样的推力盘。 一种装置可以配备这样的磁性轴承。

公开(公告)号：US09035514B2

公开(公告)日：2015-05-19

申请号：US13654989

申请日：2012-10-18

Applicant: SKF MAGNETIC MECHATRONICS

Inventor： Luc Baudelocque

IPC: H02K5/128 ,  F16C32/04 ,  H02K7/09

CPC classification number: F16C32/047 ,  F16C2300/42 ,  H02K5/128 ,  H02K7/09

Abstract: A jacketed electromagnetic machine stator for a pressurized rotary machine operating in a corrosive atmosphere containing H2S or wet CO2 and including a plurality of pole pieces separated from a rotor by an airgap, wherein the hermetically sealed enclosure protecting said stator from said corrosive atmosphere includes a jacket constituted by a non-magnetic cylinder having magnetic material inlays situated in register with said pole pieces and that are not in contact with said corrosive atmosphere, said hermetically sealed enclosure being constituted externally solely by parts made of non-magnetic material that are secured to one another by welds that have not been subjected to any heat treatment.

Abstract translation: 一种用于加压旋转机器的夹套电磁机定子，其操作在含有H 2 S或湿二氧化碳的腐蚀性气氛中，并且包括通过气隙与转子分离的多个极片，其中保护所述定子免受所述腐蚀性气氛的气密密封外壳包括夹套 由具有与所述极片对准的磁性材料嵌体并且不与所述腐蚀性气体接触的非磁性气缸构成，所述气密密封的外壳仅由非磁性材料制成的部件构成，所述非磁性材料被固定到一个 另一个通过未经过任何热处理的焊缝。

公开(公告)号：US20140354098A1

公开(公告)日：2014-12-04

申请号：US14290199

申请日：2014-05-29

Applicant: SKF Magnetic Mechatronics

Inventor： Philipp Krebs ,  Jens Anders ,  Eddy Herisse ,  Frederic Ponson

IPC: F16C32/04 ,  F16C33/06

CPC classification number: F16C32/0402 ,  F16C23/041 ,  F16C32/0442 ,  F16C32/047 ,  F16C32/0474 ,  F16C33/06 ,  F16C39/02 ,  F16C2240/40 ,  F16C2240/50 ,  F16C2360/44 ,  H02K7/09

Abstract: An assembly that includes a rotating shaft supported with respect to a stationary housing by at least one active magnetic bearing presenting a mean radial air gap and at least one auxiliary bearing having a bushing fixed to the housing and a sleeve fixed on the rotating shaft. The bushing and the sleeve have opposite surfaces that define a clearance (E2) which is less than the mean radial air gap (E1). The bushing and the sleeve each exhibit symmetry around a longitudinal axis of the shaft and have different profiles in a longitudinal cross-section including the longitudinal axis to optimize the contact pressure distribution when the rotating shaft lands on the auxiliary bearing.

Abstract translation: 一种组件，其包括通过至少一个具有平均径向气隙的主动磁轴承而相对于固定壳体支撑的旋转轴，以及至少一个辅助轴承，其具有固定到所述壳体的衬套和固定在所述旋转轴上的套筒。 衬套和套管具有相对的表面，其限定了小于平均径向气隙（E1）的间隙（E2）。 衬套和套管各自围绕轴的纵向轴线显示对称性，并且在包括纵向轴线的纵向截面中具有不同的轮廓，以在旋转轴落在辅助轴承上时优化接触压力分布。