公开(公告)号：US11050320B2

公开(公告)日：2021-06-29

申请号：US16714481

申请日：2019-12-13

Applicant: Baker Hughes, a GE company, LLC

Inventor： Yong Li ,  John M. Knapp ,  Jackson Reynolds

IPC: H02K5/00 ,  H02K5/132 ,  H02K5/128 ,  H02K9/197 ,  F04B47/06 ,  E21B43/12 ,  H02K7/14 ,  H02K11/30 ,  F04B17/03 ,  F04B47/02 ,  H02K5/10 ,  H02K5/124 ,  H02K5/22 ,  H02K17/02 ,  H02K1/02

Abstract: Systems and methods for electric motor, where the stator core has one or more stator core sections, each of which is a single-piece unit formed of soft magnetic composite (SMC) material, and where the stator core sections are positioned end-to-end with seals at each end to form a plurality of stator slots, where each of the stator slots extends through each of the stator core sections and is in fluid communication with the others to form a sealed stator chamber. The sealed stator chamber may have an expansion chamber to allow expansion and contraction of dielectric fluid in the stator chamber while maintaining separation of the dielectric oil from lubricating oil which is within the motor but external to the stator chamber. The sealed stator chamber can prevent well fluids that leak into the motor from reaching the stator windings and degrading their insulation.

公开(公告)号：US20200313481A1

公开(公告)日：2020-10-01

申请号：US16371351

申请日：2019-04-01

Applicant: LIM-Tech Limited

Inventor： Kalpeshkumar Arvindbhai Patel ,  Muhsien Mohamed Nasr Yazid

IPC: H02K1/27 ,  H02K17/02 ,  H02K3/28

Abstract: A linear electromotive machine, for example a motor, generator and/or eddy-current brake is disclosed. The machine comprises a stator and a rotor, the rotor comprising a Halbach magnet array mounted on a fibre-reinforced polymer rotor frame. Also disclosed is a transportation system including such a machine and a method of manufacturing such a machine.

公开(公告)号：US20200259397A1

公开(公告)日：2020-08-13

申请号：US16274842

申请日：2019-02-13

Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG

Inventor： Khaja Sharfuddin MOHAMMED

IPC: H02K9/19 ,  H02K1/20 ,  H02K17/02

Abstract: An induction motor includes a motor shaft, a rotor, and a rotor conductor bar. In some embodiments described herein, the rotor has a first axial side and a second axial side, and is non-rotatably secured to the motor shaft. The rotor includes a rotor core having an interior surface defining a slot extending from the first axial side to the second axial side. The rotor conductor bar is disposed in the slot. The rotor conductor bar and the slot cooperate to define a channel configured to transfer a fluid through the rotor core from the first axial side to the second axial side while directly contacting the rotor conductor bar.

公开(公告)号：US20200067355A1

公开(公告)日：2020-02-27

申请号：US15746908

申请日：2015-10-01

Applicant: Alexandr Valentinovich Sakhnov

Inventor： Alexandr Valentinovich Sakhnov

IPC: H02K1/14 ,  H02K17/02

Abstract: The claimed invention relates to power engineering and can be used as a drive with a wide power range. The technical result is an increase in motor efficiency. In the claimed asynchronous electromagnetic motor, a tyre-shaped stator comprises a body and at least five rows of electromagnets, which are arranged at an angle about the entire perimeter of the stator, wherein the working cores of the electromagnets extend into a hollow groove surrounding a rotor. The electromagnets are activated with the aid of a controller, which supplies a current to transverse groups of electromagnets at a plurality of points on the stator. The resulting electromagnetic field interacts with the tips of the rotor and causes it to rotate.

公开(公告)号：US10541582B2

公开(公告)日：2020-01-21

申请号：US15443722

申请日：2017-02-27

Applicant: Yong Li ,  John M. Knapp ,  Jackson Reynolds

Inventor： Yong Li ,  John M. Knapp ,  Jackson Reynolds

IPC: H02K5/00 ,  H02K5/132 ,  H02K11/30 ,  F04B17/03 ,  F04B47/02 ,  H02K5/10 ,  H02K5/124 ,  H02K5/22 ,  H02K17/02

Abstract: Systems and methods for electric motor, where the stator core has one or more stator core sections, each of which is a single-piece unit formed of soft magnetic composite (SMC) material, and where the stator core sections are positioned end-to-end with seals at each end to form a plurality of stator slots, where each of the stator slots extends through each of the stator core sections and is in fluid communication with the others to form a sealed stator chamber. The sealed stator chamber may have an expansion chamber to allow expansion and contraction of dielectric fluid in the stator chamber while maintaining separation of the dielectric oil from lubricating oil which is within the motor but external to the stator chamber. The sealed stator chamber can prevent well fluids that leak into the motor from reaching the stator windings and degrading their insulation.

公开(公告)号：US20190288616A1

公开(公告)日：2019-09-19

申请号：US16433348

申请日：2019-06-06

Applicant: General Electric Company

Inventor： Jian Zhou ,  Fei Xu ,  Dong Liu ,  Hai Qiu ,  Pengju Kang

IPC: H02P4/00 ,  B60L50/64 ,  B60L15/20 ,  H02J7/02 ,  B60L15/38 ,  H02K17/02 ,  B60L50/40 ,  B60L50/30 ,  B60L50/51 ,  B60L7/18 ,  B60L58/20

Abstract: An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals.

公开(公告)号：US20190242195A1

公开(公告)日：2019-08-08

申请号：US15892089

申请日：2018-02-08

Applicant: Saudi Arabian Oil Company

Inventor： Ibrahim A. Ghamdi ,  Ossama R. Sehsah ,  Mahmoud Adnan Alqurashi

IPC: E21B15/00 ,  E21B7/02 ,  F16H19/04 ,  H02K17/02

CPC classification number: E21B15/003 ,  E21B7/02 ,  F16H19/04 ,  H02K17/02

Abstract: A smart skidding system includes a transverse skidding platform comprising a plurality of first skidding rails for skidding the a rig floor of the drilling rig sideways, wherein the plurality of first skidding rails are parallel to each other, a longitudinal skidding platform comprising a plurality of second skidding rails for skidding the rig floor of the drilling rig forward and backward, the plurality of second skidding rails being perpendicular to the plurality of first skidding rails, and a skidder unit configured to skid the rig floor of the drilling rig along the transverse skidding platform or the longitudinal skidding platform, the skidder unit further comprising a gear box assembly having a gear structure configured to engage with the plurality of first skidding rails and the plurality of second skidding rails, and an AC motor configured to drive the skidder unit.

公开(公告)号：US10097070B1

公开(公告)日：2018-10-09

申请号：US14468315

申请日：2014-08-25

Applicant: COLERIDGE DESIGN ASSOCIATES LLC

Inventor： Geoffrey A. Boyd

IPC: H02K3/00 ,  H02K17/02 ,  H02K3/47

Abstract: A motor is disclosed. The motor includes a stator with a stator coil to generate a periodic magnetic field and a rotor. An air gap is disposed between the stator and the rotor. The rotor has at least one rotor ring, a portion of the rotor ring is disposed in the air gap. Due to the magnetic field, a periodic current is induced in the rotor ring. The current flowing through the portion of the rotor ring disposed in the air gap flows in a first direction to rotate the rotor relative to the stator.

公开(公告)号：US20170264158A1

公开(公告)日：2017-09-14

申请号：US15443722

申请日：2017-02-27

Applicant: Yong Li ,  John M. Knapp ,  Jackson Reynolds

Inventor： Yong Li ,  John M. Knapp ,  Jackson Reynolds

IPC: H02K5/132 ,  H02K5/22 ,  F04B17/03 ,  H02K5/10 ,  H02K17/02 ,  F04B47/02 ,  H02K5/124 ,  H02K11/30

Abstract: Systems and methods for electric motor, where the stator core has one or more stator core sections, each of which is a single-piece unit formed of soft magnetic composite (SMC) material, and where the stator core sections are positioned end-to-end with seals at each end to form a plurality of stator slots, where each of the stator slots extends through each of the stator core sections and is in fluid communication with the others to form a sealed stator chamber. The sealed stator chamber may have an expansion chamber to allow expansion and contraction of dielectric fluid in the stator chamber while maintaining separation of the dielectric oil from lubricating oil which is within the motor but external to the stator chamber. The sealed stator chamber can prevent well fluids that leak into the motor from reaching the stator windings and degrading their insulation.

公开(公告)号：US20150115761A1

公开(公告)日：2015-04-30

申请号：US14403410

申请日：2013-04-16

Applicant: Ulrich Dorzbach ,  Andreas Wagner

Inventor： Ulrich Dorzbach ,  Andreas Wagner

IPC: B66C23/82 ,  H02K17/02

CPC classification number: B66C23/82 ,  H02K17/02

Abstract: The invention relates to an electro-hydraulic device for moving a jib for a derricking-jib tower crane, the motor of said device being designed for operation at the average required power. The operating time in an energy-wasting part load range is thus significantly reduced in relation to conventional electro-hydraulic devices for moving a jib.

Abstract translation: 本发明涉及一种电动液压装置，用于移动用于升降式起重机的起重臂，所述装置的电动机被设计成以平均所需功率运行。 因此，相对于用于移动副臂的常规电动液压装置，能量消耗部分负载范围中的操作时间显着降低。