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公开(公告)号：US20230366300A1
公开(公告)日：2023-11-16
申请号：US18220469
申请日：2023-07-11
Applicant: Halliburton Energy Services, Inc.
CPC classification number: E21B43/128 , F04D29/048 , H02K5/132 , F04D13/10 , F04D29/04 , F04D13/0633 , F04D13/064 , H02K7/09 , F16C32/047 , F16C32/0402 , F16C2360/44
Abstract: An electric submersible pump (ESP) assembly. The ESP assembly comprises a centrifugal pump, an electric motor mechanically coupled by a drive shaft to the centrifugal pump, wherein the electric motor comprises a stator and a rotor, a bearing, wherein the bearing is disposed inside the electric motor, and a magnetic shield disposed in the electric motor between bearing and the rotor and stator.
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公开(公告)号：US20230155443A1
公开(公告)日：2023-05-18
申请号：US17914989
申请日：2021-03-24
Applicant: FUJITSU GENERAL LIMITED
Inventor： Yoichi TANABE , Tomonori KOJIMA , Yosuke MATSUI , Rei OMATA , Hiroo KOJIMA
CPC classification number: H02K5/1732 , H02K1/30 , H02K7/083 , H02K21/14 , F16C32/047 , F16C2380/26
Abstract: [Object] To provide a permanent magnet electric motor that can be downsized in a rotation axis direction and can also suppress a leakage flux.
[Solving Means] The permanent magnet electric motor includes: a columnar rotor including a permanent magnet portion annularly disposed; a shaft disposed along a rotation axis of the rotor; a cylindrical stator core disposed on an outer circumferential side of the rotor; a main body including a shell integrally formed with the stator core; a bracket attached to one end side of the main body; and a bearing that rotatably supports the shaft. The bracket includes a bearing house portion that stores the bearing, and a non-magnetic portion that is connected to the bearing house portion. The bearing house portion is disposed on an inner diameter side relative to the permanent magnet portion as viewed from an axis direction of the rotation axis, and an edge portion of the bearing house portion on an outer diameter side is covered with the non-magnetic portion.-
公开(公告)号：US20190093704A1
公开(公告)日：2019-03-28
申请号：US16136579
申请日：2018-09-20
Applicant: JTEKT CORPORATION
Inventor： Yoshimichi HIGASHIYAMA , Yusuke UEDA , Tsukasa SAKAZAKI
IPC: F16C32/04
CPC classification number: F16C32/0459 , F16C19/06 , F16C32/041 , F16C32/047 , F16C33/6674 , F16C41/004 , F16C41/007 , F16C2202/36 , F16C2380/26 , H02K5/173 , H02K7/09 , H02K7/1807 , H02K21/00
Abstract: A rolling bearing device includes a bearing portion and a power generation portion. The power generation portion has a plurality of projecting portions provided on an outer ring spacer, a pair of core members provided on an inner ring spacer, a magnet, and a coil. The power generation portion generates an induced current in the coil as the projecting portions pass in the vicinity of first side end portions of the core members during rotation. There are two different loop paths along which magnetism generated by the magnet flows: a first loop path formed when the projecting portions are close to the first side end portions of the core members; and a second loop path formed when the projecting portions and the first side end portions of the core members are away from each other.
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公开(公告)号：US10030702B2
公开(公告)日：2018-07-24
申请号：US14945599
申请日：2015-11-19
Applicant: Yvon Baucé , Francis Bienaime , Eduardo Carrasco
Inventor： Yvon Baucé , Francis Bienaime , Eduardo Carrasco
CPC classification number: F16C32/048 , F16C32/0446 , F16C32/0461 , F16C32/047 , F16C43/00 , F16C2360/45 , H01F5/02 , H01F7/06 , H02K15/00
Abstract: A magnetic bearing, adapted to equip a rotary apparatus. The magnetic bearing comprises: an actuator sub-assembly provided with a magnetic base and at least three actuator bobbins mounted on the magnetic base, and a sensor sub-assembly provided with at least three magnetic sensors associated with the actuator bobbins. At least one sub-assembly amidst the actuator sub-assembly and the sensor sub-assembly comprises at least three sectors mounted together. Each sector includes at least one actuator bobbin when the sector belongs to the actuator sub-assembly, or at least one magnetic sensor when the sector belongs to the sensor sub-assembly. The invention also concerns a rotary apparatus comprising such a magnetic bearing and a method for manufacturing such a magnetic bearing.
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5.发明授权公开(公告)号：US09964147B2
公开(公告)日：2018-05-08
申请号：US14675148
申请日：2015-03-31
Applicant: Rieter CZ s.r.o.
Inventor： Milan Moravec , Jiri Sloupensky , Siegfried Silber , Andreas Josef Pröll , Peter Dirnberger
IPC: F16C32/04
CPC classification number: F16C32/048 , D01H4/12 , F16C32/0465 , F16C32/047 , F16C32/0487 , F16C2340/18
Abstract: A magnetic bearing for the mounting of a shaft, in particular for a spinning rotor of an open-end spinning device, features several pole shanks of a stator for the active radial magnetic mounting of the shaft in two degrees of freedom, which in each case are surrounded by a coil and are radially arranged to each other, in such a manner that they define an opening for the shaft. In the area of the opening, the pole shanks are connected to each other. For the passive axial mounting of the shaft, at least one permanent magnet is arranged between the coils and the opening. The invention also includes a shaft for mounting with at least one corresponding magnetic bearing. The shaft is a composite component, which at least partially consists of non-ferromagnetic material. In the area of the radial and axial mounting, a component made of a ferromagnetic material is arranged. A shaft mounting is also provided and features, for the passive axial mounting of one degree of freedom of the shaft and for the active radial mounting of two degrees of freedom of the shaft, at least one, preferably two, corresponding magnetic bearings.
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Patent Agency Ranking
公开(公告)号：US20160215817A1
公开(公告)日：2016-07-28
申请号：US14653492
申请日：2013-12-17
Applicant: NUOVO PIGNONE SRL
Inventor： Luciano MEI , Duccio FIORAVANTI , Marco ROMANELLI , Marco ANSELMI , Manuele BIGI
CPC classification number: F16C32/0461 , F16C32/047 , F16C32/0476 , F16C2300/42 , F16C2360/00 , H02K1/02 , H02K1/18 , H02K3/44 , H02K5/12 , H02K7/09 , H02K15/02
Abstract: A magnetic bearing comprising a stator magnetic circuit secured to a stationary support device, the stator magnetic circuit comprising at least one coil and a ferromagnetic body placed in a protective annular support, the protective annular support leaving uncovered a surface of the ferromagnetic body and a surface of the at least one coil. The bearing also comprises at least one annular plug placed on the surface of the at least one coil which is left uncovered by the protective annular support, and the annular plug and the surface of the ferromagnetic body which is left uncovered by the protective annular support are coated by a protective layer.
Abstract translation: 一种磁性轴承，其包括固定到固定支撑装置的定子磁路，所述定子磁路包括至少一个线圈和放置在保护性环形支撑件中的铁磁体，所述保护环形支撑件未露出铁磁体的表面， 的至少一个线圈。 所述轴承还包括放置在所述至少一个线圈的表面上的至少一个环形插塞，所述至少一个线圈未被所述保护性环形支撑件覆盖，并且所述环形插头和被所述保护性环形支撑件未覆盖的所述铁磁体的表面是 被保护层涂覆。
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公开(公告)号：US20160108967A1
公开(公告)日：2016-04-21
申请号：US14893721
申请日：2014-05-28
Applicant: NUOVO PIGNONE SRL
Inventor： Andrea MASSINI , Luca LOMBARDI , Manuele BIGI , Giuseppe SASSANELLI , Luciano MEI
CPC classification number: F16C37/005 , F16C32/0468 , F16C32/047 , F16C32/0476
Abstract: A magnetic bearing assembly for a rotary machine having a rotor shaft, comprising a stator magnetic circuit secured to a stationary support element and comprising at least one body of ferromagnetic material and at least one coil, both being fitted in a protective annular housing leaving uncovered a surface of revolution of said ferromagnetic body and a surface of revolution of said one coil, the magnetic bearing assembly comprising an annular thrust collar secured to the rotor shaft and radially extending towards the stator magnetic circuit by a radial portion, said radial portion facing the uncovered surfaces of said ferromagnetic body and said one coil. The annular thrust collar comprises at least one flow channel.
Abstract translation: 一种用于具有转子轴的旋转机械的磁性轴承组件，其包括固定到固定支撑元件的定子磁路，并且包括至少一个铁磁材料体和至少一个线圈，两个体线都装配在保护性环形壳体中， 所述铁磁体的旋转表面和所述一个线圈的转动表面，所述磁性轴承组件包括固定到所述转子轴并且通过径向部分朝向所述定子磁路径向延伸的环形推力环，所述径向部分面向未覆盖 所述铁磁体和所述一个线圈的表面。 环形止推环包括至少一个流动通道。
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公开(公告)号：US20160084304A1
公开(公告)日：2016-03-24
申请号：US14786593
申请日：2014-05-06
Applicant: William C. MAIER , Joseph A. TECZA , DRESSER-RAND COMPANY
Inventor： William C. Maier , Joseph A. Tecza
IPC: F16C32/04
CPC classification number: F16C32/047 , F16C32/048 , F16C35/00
Abstract: A radial magnetic bearing may include an annular housing including a radial outer wall disposed between radially outer ends of two annular axial end plates and an isolation sleeve which may include a helical arrangement of a plurality of ferromagnetic wires. The isolation sleeve may be an annular structure extending axially between the two annular axial end plates, and the isolation sleeve and the annular housing may define an isolation cavity therebetween. The radial magnetic bearing may also include an isolation sleeve retainer configured to maintain a position of the isolation sleeve between the two annular axial end plates. The radial magnetic bearing may further include a plurality of laminations disposed adjacent the isolation sleeve and about a shaft of the rotating machine. A gap may be defined between the plurality of laminations and the isolation sleeve.
Abstract translation: 径向磁性轴承可以包括环形壳体，其包括设置在两个环形轴向端板的径向外端之间的径向外壁和可包括多个铁磁线的螺旋排列的隔离套筒。 隔离套管可以是在两个环形轴向端板之间轴向延伸的环形结构，并且隔离套筒和环形壳体可以在其间限定隔离腔。 径向磁轴承还可以包括隔离套保持器，该隔离套保持器构造成将隔离套管的位置保持在两个环形轴向端板之间。 径向磁性轴承还可以包括邻近隔离套筒并围绕旋转机器的轴设置的多个叠片。 可以在多个叠片和隔离套之间限定间隙。
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公开(公告)号：US09225139B2
公开(公告)日：2015-12-29
申请号：US14531876
申请日：2014-11-03
Applicant: Gigaphoton Inc.
Inventor： Akihiko Kurosu , Junichi Fujimoto , Yosuke Ishizuka , Takashi Matsunaga , Osamu Wakabayashi
CPC classification number: H01S3/036 , F16C32/047 , H01S3/02 , H01S3/041 , H01S3/223 , H01S3/2232 , H01S3/2258
Abstract: A discharge-pumped gas laser device may include a laser chamber, a pair of discharge electrodes provided in the laser chamber, a fan with a magnetic bearing being provided in the laser chamber and configured to be capable of circulating a gas in the laser chamber, a housing configured to contain the laser chamber, and a magnetic bearing controller connected to the magnetic bearing electrically, being capable of controlling the magnetic bearing, and provided in the housing separately from the laser chamber.
Abstract translation: 放电泵浦气体激光装置可以包括激光室，设置在激光室中的一对放电电极，具有磁性轴承的风扇设置在激光室中并且能够使激光室中的气体循环， 被配置为容纳激光室的壳体，以及与磁性轴承电连接的磁性轴承控制器，其能够控制磁性轴承，并且与激光室分开设置在壳体中。
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10.发明授权公开(公告)号：US08487493B2
公开(公告)日：2013-07-16
申请号：US12990833
申请日：2009-04-30
Applicant: Christopher E. Cunningham , Rune Fantoft , Terje Hollingsaeter
Inventor： Christopher E. Cunningham , Rune Fantoft , Terje Hollingsaeter
CPC classification number: H02K5/1285 , E21B43/128 , F04D1/063 , F04D7/02 , F04D13/0626 , F04D13/0633 , F04D13/064 , F04D13/086 , F04D29/026 , F04D29/048 , F05D2300/224 , F05D2300/502 , F05D2300/507 , F05D2300/603 , F16C32/047 , F16C2360/42 , H02K7/09 , H02K7/14 , Y10T137/85978
Abstract: A rotating apparatus includes a housing, a shaft at least partially disposed within a first pressure environment defined by the housing, a first magnetic bearing supporting the shaft and being at least partially disposed within the first pressure environment, a sensor operable to sense a position of the shaft relative to the first magnetic bearing, a controller disposed in a second pressure environment independent of the first pressure environment and operable to communicate with the sensor and to generate a control signal for the first magnetic bearing based on the sensed position, and a communication device operable to communicate the control signal between the controller and the first magnetic bearing and to communicate the sensed position between the sensor and the controller without penetrating a pressure boundary defined between the first and second pressure environments.
Abstract translation: 旋转装置包括壳体，至少部分地设置在由壳体限定的第一压力环境内的轴，支撑轴并且至少部分地设置在第一压力环境内的第一磁轴承，可操作以感测位置的传感器 所述轴相对于所述第一磁性轴承，控制器设置在独立于所述第一压力环境的第二压力环境中并且可操作以与所述传感器通信并且基于所感测的位置产生用于所述第一磁性轴承的控制信号，以及通信 装置，其可操作以在所述控制器和所述第一磁性轴承之间传递所述控制信号，并且在不穿透所述第一和第二压力环境之间限定的压力边界的情况下传递所述传感器和所述控制器之间的感测位置。
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