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

IPC: B01F13/08 ,  C12M1/06 ,  B01F7/00 ,  H02K5/128 ,  H02K21/24

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：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

IPC: B01F13/00 ,  B01F13/08 ,  H02K11/33 ,  H02K11/21 ,  H02K21/24 ,  H02K21/12 ,  C12M1/06 ,  H02K11/24

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

IPC: B01F13/08 ,  H02K5/128 ,  H02K21/24 ,  C12M1/06

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

IPC: B01F15/00 ,  B01F13/08

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：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

IPC: B01F15/00 ,  B01F13/08

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：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

IPC: B01F13/08 ,  C12M1/06 ,  H02K11/24 ,  H02K11/33 ,  H02K11/21 ,  B01F7/00 ,  H02K1/18

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.