Radially coupled pump systems for pressurizing fluid in closed loop systems

Patent metadata

Field	Value
Publication number	US-11891998-B2
Application number	US-202217840400-A
Country	US
Kind code	B2
Filing date	Jun 14, 2022
Priority date	May 3, 2022
Publication date	Feb 6, 2024
Grant date	Feb 6, 2024

Abstract

A pump system for pressurizing a fluid within a closed loop thermal transport bus is disclosed herein. The example of the pump system disclosed herein includes an electric motor including a rotor shaft and a stator, wherein the rotor shaft is to generate a first torque; a pump including an impeller coupled to an impeller shaft, wherein the impeller is to increase a kinetic energy of the fluid; a driver wheel attached to the rotor shaft, wherein the driver wheel is radially connected to a follower wheel; and a co-axial magnetic coupling to connect at least one of the follower wheel to the impeller shaft or the driver wheel to the rotor shaft, wherein the co-axial magnetic coupling includes an outer hub, an inner hub, and a barrier can, the barrier can to hermetically seal a portion of the pump system from the fluid.

First claim

What is claimed is:

1. A pump system to pressurize a fluid within a closed loop transport bus, the pump system comprising:
an electric motor including a rotor shaft and a stator;
a pump including an impeller coupled to an impeller shaft;
a driver wheel attached to the rotor shaft, wherein the driver wheel is radially connected to a follower wheel; and
a co-axial magnetic coupling to connect at least one of the follower wheel to the impeller shaft or the driver wheel to the rotor shaft, wherein the co-axial magnetic coupling includes an outer hub, an inner hub, and a barrier can, the barrier can to hermetically seal a portion of the pump system from the fluid.

2. The pump system of claim 1 , wherein the rotor shaft is to generate a first torque, the driver wheel is to transmit the first torque to the follower wheel, the follower wheel is to generate a second torque.

3. The pump system of claim 1 , wherein the driver wheel has a first diameter, wherein the follower wheel has a second diameter, and wherein the first diameter is greater than the second diameter.

4. The pump system of claim 1 , wherein the driver wheel is a first gear, wherein the follower wheel is a second gear, and wherein the first gear is radially connected to the second gear via interlocking gear teeth.

5. The pump system of claim 1 , wherein the driver wheel is a first pulley, wherein the follower wheel is a second pulley, and wherein the first pulley is radially connected to the second pulley via a drive belt.

6. The pump system of claim 1 , wherein the stator is inside of the rotor shaft, the rotor shaft is configured to be the driver wheel to transmit a first torque to the follower wheel, the follower wheel is to generate a second torque.

7. The pump system of claim 1 , wherein the pump system includes one or more additively manufactured housings to frame at least one of the stator, the rotor shaft, the impeller, the impeller shaft, or the co-axial magnetic coupling, the one or more additively manufactured housings to support at least one or more radial bearings or one or more thrust bearings, the one or more additively manufactured housings to configure an impeller shaft axis and a rotor shaft axis to be parallel and to be on separate planes.

8. The pump system of claim 7 , wherein the one or more radial bearings include at least one of foil bearings, rolling element bearings, hydrostatic bearings, or hydrodynamic bearings, the one or more radial bearings to support one or more radial loads produced by at least one of the impeller shaft, the rotor shaft, the co-axial magnetic coupling, the driver wheel, or the follower wheel.

9. The pump system of claim 7 , wherein the one or more thrust bearings include at least one of foil bearings, rolling element bearings, hydrostatic bearings, or hydrodynamic bearings, the one or more thrust bearings to support one or more thrust loads produced by at least one of the impeller shaft, the rotor shaft, the co-axial magnetic coupling, the driver wheel, or the follower wheel.

10. The pump system of claim 7 , wherein the one or more additively manufactured housings include one or more cooling jackets to dissipate heat from the electric motor to at least one of ambient air or fluid coolant.

11. A pump system to pressurize a fluid within a closed loop transport bus, the pump system comprising:
an electric motor including a rotor shaft and a stator, wherein the stator is to induce a first angular velocity of the rotor shaft;
a pump including an impeller coupled to an impeller shaft, wherein the impeller shaft is to rotate at a second angular velocity, and wherein the pump is to increase a kinetic energy of the fluid;
a driver wheel fixed to the rotor shaft, wherein the driver wheel is radially connected to a follower wheel; and
a co-axial magnetic coupling to couple at least one of the follower wheel to the impeller shaft or the driver wheel to the rotor shaft, wherein the co-axial magnetic coupling includes an outer hub, an inner hub, and a barrier can, the barrier can to hermetically seal a portion of the pump system from the fluid.

12. The pump system of claim 11 , wherein the driver wheel is to transfer the first angular velocity to the follower wheel, the follower wheel to rotate at the second angular velocity.

13. The pump system of claim 11 , wherein the driver wheel has a first diameter, wherein the follower wheel has a second diameter, and wherein the first diameter is greater than the second diameter.

14. The pump system of claim 11 , wherein the driver wheel is a first gear, wherein the follower wheel is a second gear, and wherein the first gear is radially connected to the second gear via interlocking gear teeth.

15. The pump system of claim 11 , wherein the driver wheel is a first pulley, wherein the follower wheel is a second pulley, and wherein the first pulley is radially connected to the second pulley via a drive belt.

16. The pump system of claim 11 , wherein the stator is inside of the rotor shaft, wherein the rotor shaft includes one or more gear teeth protruding outward on the rotor shaft, the driver wheel to transfer the first angular velocity to the follower wheel, the follower wheel to rotate at the second angular velocity.

17. A pump system to pressurize a fluid within a closed loop transport bus, the pump system comprising:
means for rotating a driver wheel, wherein the means for rotating is to exert a first torque on the driver wheel, and wherein the means for rotating is to generate a first angular velocity of the driver wheel based on the first torque;
means for accelerating a flow rate of the fluid, wherein the means for accelerating is to rotate an impeller shaft at a second angular velocity based on a second torque;
means for converting the first torque of the driver wheel into the second torque of a follower wheel, wherein the means for converting is to generate the second angular velocity of the follower wheel based on the second torque; and
means for connecting at least one of the follower wheel to the impeller shaft or the driver wheel to a rotor shaft, wherein the means for connecting is to hermetically seal a portion of the pump system from the fluid.

18. The pump system of claim 17 , wherein the means for connecting is to transfer at least one of the first torque or the second torque from a first shaft to a second shaft.

19. The pump system of claim 17 , further including means for framing at least one of a stator, the rotor shaft, an impeller, the impeller shaft, or a co-axial magnetic coupling, wherein the means for framing is to support at least one or more radial bearings or one or more thrust bearings, and wherein the means for framing is to configure an impeller shaft axis and a rotor shaft axis in parallel and on separate planes.

20. The pump system of claim 19 , wherein the means for framing is to transfer heat from an electric motor to at least one of ambient air or fluid coolant.

Assignees

• Gen Electric

Inventors

• Yamarthi David Raju
• Raju Mohan Kannaiah
• Wangler Adam Joseph
• Rodriguez Erdmenger Rodrigo
• Pattnaik Santosh Kumar
• Tappu Prachi Anand

Classifications

• F04D13/028 Primary

  the driving means being a planetary gear · CPC title

• F04D13/024

  a magnetic coupling · CPC title

• F04D13/0606

  Canned motor pumps · CPC title

• F04D29/5806

  Cooling the drive system · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title