-
公开(公告)号：US10682618B2
公开(公告)日：2020-06-16
申请号：US15166397
申请日：2016-05-27
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ashraf Said Atalla , Klaus Gebauer , Sima Didari
Abstract: Embodiments of the method disclosed regard use of a torque sensor (e.g., transducer) and using the measured torque to detect the different fluid and mixing properties, conditions, and abnormalities in a mixing process. The torque produced in the mixing process relates to different fluid properties such as viscosity and density. It also relates to different mixing conditions such as presence of obstacles and changes or issues with gas sparging. Moreover, torque measurements enable determination of power transmitted to fluid by actual measurement, in contrast to using solely empirical impeller power number and speed, and allowing for actual mass transfer determination (i.e., gas transfer calculations).
-
公开(公告)号：US10256732B2
公开(公告)日：2019-04-09
申请号：US14885675
申请日：2015-10-16
Applicant: General Electric Company
Inventor： Rui Zhou , Luis Jose Garces , Ravisekhar Nadimpalli Raju , Ashraf Said Atalla
Abstract: A medium voltage direct current (MVDC) collector system for renewable power generation facilities includes at least one renewable energy generation device. The MVDC collector system also includes at least one direct current (DC)-to-DC (DC/DC) power converter coupled to the at least one renewable energy generation device. The at least one DC/DC power converter is configured to shift a switching operation of the DC/DC power converter between full-wave conversion and half-wave conversion. The MVDC collector system further includes at least one controller coupled to the at least one DC/DC power converter. The at least one controller is configured to regulate shifting the switching operation of the at least one DC/DC power converter between full-wave conversion and half-wave conversion.
-
公开(公告)号：US20170282137A1
公开(公告)日：2017-10-05
申请号：US15087656
申请日：2016-03-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ashraf Said Atalla , Klaus Gebauer , Richard Lee Damren , David Allan Torrey , Sima Didari
CPC classification number: B01F13/0827 , C12M27/02 , H02K5/1282 , H02K21/24
Abstract: The system and method of the invention pertains to use of a back iron on one or both ends of the impeller to increase the magnetic field density, and thus strengthen the magnetic coupling. In addition, pie-shaped (i.e. wedge) magnets, or variations thereof, increase the utilization volume and hence provide higher torque to allow the use of less expensive material (e.g. ferrites). In another embodiment, the rotor side is constructed with a Halbach array which increases the torque without the need to add a back iron piece. In another embodiment, an axial flux stator is implemented to replace the drive-end magnets and the drive motor.
-
公开(公告)号：US10338029B2
公开(公告)日：2019-07-02
申请号：US14565784
申请日：2014-12-10
Applicant: General Electric Company
Inventor： Kaustubh Ravindra Nagarkar , Jeffrey Michael Ashe , William Hullinger Huber , Aaron Judy Couture , Ashraf Said Atalla
IPC: A61B5/05 , G01N27/74 , A61B5/021 , A61B5/024 , A61B5/0265 , A61B5/029 , A61B5/145 , G01F1/56 , A61B5/0205 , A61B8/08 , G01N33/18 , G01N33/22 , G01N33/26 , G01N33/49 , G01R33/09 , G01F1/712 , A61B5/00
Abstract: A system and method for monitoring a subject are presented. The system includes a sensing device including at least one magnetic source to generate a magnetic field and an array of magnetic sensors disposed within the magnetic field. The sensor array obtains a plurality of magnetic field measurements at a plurality of locations along a vessel carrying a fluid including one or more magnetic particles. Further, the system includes a processing subsystem communicatively coupled to the sensing device, where the processing subsystem determines variations in the measurements caused by magnetization-relaxation of the magnetic particles based on a coupled model that defines behavior of the fluid in the varying magnetic field based on principles of magnetization-relaxation, bulk motion of the magnetic particles towards a determined gradient of the magnetic field, magnetostatics, and conservation of momentum. The processing subsystem estimates values of one or more desired parameters based on the determined variations.
-
公开(公告)号：US20160169838A1
公开(公告)日：2016-06-16
申请号：US14565784
申请日：2014-12-10
Applicant: General Electric Company
Inventor： Kaustubh Ravindra Nagarkar , Jeffrey Michael Ashe , William Hullinger Huber , Aaron Judy Couture , Ashraf Said Atalla
CPC classification number: G01N27/74 , A61B5/0205 , A61B5/021 , A61B5/024 , A61B5/02416 , A61B5/0265 , A61B5/029 , A61B5/05 , A61B5/0515 , A61B5/14542 , A61B5/6824 , A61B8/488 , A61B2562/043 , G01F1/56 , G01F1/712 , G01N33/18 , G01N33/225 , G01N33/26 , G01N33/49 , G01N33/4925 , G01R33/096
Abstract: A system and method for monitoring a subject are presented. The system includes a sensing device including at least one magnetic source to generate a magnetic field and an array of magnetic sensors disposed within the magnetic field. The sensor array obtains a plurality of magnetic field measurements at a plurality of locations along a vessel carrying a fluid including one or more magnetic particles. Further, the system includes a processing subsystem communicatively coupled to the sensing device, where the processing subsystem determines variations in the measurements caused by magnetization-relaxation of the magnetic particles based on a coupled model that defines behavior of the fluid in the varying magnetic field based on principles of magnetization-relaxation, bulk motion of the magnetic particles towards a determined gradient of the magnetic field, magnetostatics, and conservation of momentum. The processing subsystem estimates values of one or more desired parameters based on the determined variations.
Abstract translation: 介绍了一种用于监控物体的系统和方法。 该系统包括感测装置，其包括至少一个磁源以产生磁场和设置在磁场内的磁传感器阵列。 传感器阵列沿着承载包括一个或多个磁性颗粒的流体的容器的多个位置处获得多个磁场测量。 此外，该系统包括通信地耦合到感测装置的处理子系统，其中处理子系统基于限定基于变化磁场中的流体的行为的耦合模型来确定由磁性粒子的磁化松弛引起的测量的变化 磁化松弛的原理，磁性颗粒朝着确定的磁场梯度的体积运动，磁静力学和动量守恒。 处理子系统基于所确定的变化来估计一个或多个期望参数的值。
-
Patent Agency Ranking
公开(公告)号：US20170282138A1
公开(公告)日：2017-10-05
申请号：US15087712
申请日：2016-03-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ashraf Said Atalla , Klaus Gebauer , James Pellegrino Alexander , David Allan Torrey
Abstract: The system and method of the invention pertains to an axial flux stator is implemented to replace the drive-end magnets and the drive motor. The axial flux stator comprises a control circuit to control the voltage and current provided to the stator, to measure the torque and speed of rotation, and to measure the magnetic flux and magnetic flux density produced by the axial flux stator and impeller magnets, individually or in combination. The axial flux stator comprises a plurality of current carrying elements to produce magnetic flux in an axial direction and drive the impeller.
-
公开(公告)号：US20170141633A1
公开(公告)日：2017-05-18
申请号：US14940498
申请日：2015-11-13
Applicant: General Electric Company
Inventor： Ashraf Said Atalla , Manoj Ramprasad Shah , Satish Prabhakaran , James Pellegrino Alexander
CPC classification number: H02K3/28 , H02K11/0094 , H02K11/04 , H02K11/20 , H02K11/25 , H02K19/10 , H02K19/34 , H02K2213/09 , H02P25/18 , H02P25/22 , H02P27/04
Abstract: An electrical machine is provided. The electrical machine includes a stator, a rotor, and a plurality of switches. The stator includes main windings and auxiliary windings. The rotor is couplable to a prime mover configured to turn the rotor relative to the stator to generate at least six phases of alternating current (AC) power at the main windings. The plurality of switches is respectively coupled between the auxiliary windings and groups of the main windings. The plurality of switches is configured to convert the at least six phases to three phases when the plurality of switches is closed.
-
公开(公告)号：US10583409B2
公开(公告)日：2020-03-10
申请号：US15087712
申请日：2016-03-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ashraf Said Atalla , Klaus Gebauer , James Pellegrino Alexander , David Allan Torrey
Abstract: The system and method of the invention pertains to an axial flux stator is implemented to replace the drive-end magnets and the drive motor. The axial flux stator comprises a control circuit to control the voltage and current provided to the stator, to measure the torque and speed of rotation, and to measure the magnetic flux and magnetic flux density produced by the axial flux stator and impeller magnets, individually or in combination. The axial flux stator comprises a plurality of current carrying elements to produce magnetic flux in an axial direction and drive the impeller.
-
公开(公告)号：US10335750B2
公开(公告)日：2019-07-02
申请号：US15087656
申请日：2016-03-31
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ashraf Said Atalla , Klaus Gebauer , Richard Lee Damren , David Allan Torrey , Sima Didari
Abstract: The system and method of the invention pertains to use of a back iron on one or both ends of the impeller to increase the magnetic field density, and thus strengthen the magnetic coupling. In addition, pie-shaped (i.e. wedge) magnets, or variations thereof, increase the utilization volume and hence provide higher torque to allow the use of less expensive material (e.g. ferrites). In another embodiment, the rotor side is constructed with a Halbach array which increases the torque without the need to add a back iron piece. In another embodiment, an axial flux stator is implemented to replace the drive-end magnets and the drive motor.
-
公开(公告)号：US20170341043A1
公开(公告)日：2017-11-30
申请号：US15166397
申请日：2016-05-27
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Ashraf Said Atalla , Klaus Gebauer , Sima Didari
Abstract: Embodiments of the method disclosed regard use of a torque sensor (e.g., transducer) and using the measured torque to detect the different fluid and mixing properties, conditions, and abnormalities in a mixing process. The torque produced in the mixing process relates to different fluid properties such as viscosity and density. It also relates to different mixing conditions such as presence of obstacles and changes or issues with gas sparging. Moreover, torque measurements enable determination of power transmitted to fluid by actual measurement, in contrast to using solely empirical impeller power number and speed, and allowing for actual mass transfer determination (i.e., gas transfer calculations).
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.011 seconds)
