US 12,460,647 B2
Integrated bearing systems for dynamically supporting shafts in pump systems
David Raju Yamarthi, Bengaluru (IN); Ravindra Shankar Ganiger, Bengaluru (IN); Adam Joseph Wangler, Evendale, OH (US); Mohan Kannaiah Raju, Bengaluru (IN); Prachi Anand Tappu, Bengaluru (IN); Santosh Kumar Pattnaik, Bengaluru (IN); Shishir Paresh Shah, Bengaluru (IN); Brandon W. Miller, Evendale, OH (US); Daniel A. Niergarth, Evendale, OH (US); and Kevin Edward Hinderliter, Evendale, OH (US)
Assigned to General Electric Company, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Jun. 14, 2022, as Appl. No. 17/840,406.
Claims priority of application No. 202211025674 (IN), filed on May 3, 2022.
Prior Publication US 2023/0358247 A1, Nov. 9, 2023
Int. Cl. F04D 13/02 (2006.01); F04D 1/00 (2006.01); F04D 13/06 (2006.01); F04D 25/02 (2006.01); F04D 25/06 (2006.01); F04D 27/00 (2006.01); F04D 29/046 (2006.01); F04D 29/049 (2006.01); F04D 29/056 (2006.01); F04D 29/06 (2006.01); F16D 41/07 (2006.01)
CPC F04D 13/021 (2013.01) [F04D 13/022 (2013.01); F04D 13/026 (2013.01); F04D 13/028 (2013.01); F04D 13/06 (2013.01); F04D 13/0633 (2013.01); F04D 25/02 (2013.01); F04D 25/028 (2013.01); F04D 25/06 (2013.01); F04D 27/004 (2013.01); F04D 29/046 (2013.01); F04D 29/049 (2013.01); F04D 29/056 (2013.01); F16D 41/07 (2013.01); F04D 1/00 (2013.01); F04D 29/0563 (2013.01); F04D 29/061 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A pump system to pressurize a fluid within a closed loop transport bus, the pump system comprising:
an inner race;
an outer race;
a pump, including an impeller;
an electric motor, including a rotor shaft connected to the impeller;
a first bearing to support the rotor shaft at a first operational speed range, the first bearing coupled to the inner race;
a second bearing to support the rotor shaft at a second operational speed range, the rotor shaft coupled to the outer race, wherein the second bearing is a foil bearing; and
one or more sprag elements configured to:
engage the inner race with the outer race at the first operational speed range; and
disengage the inner race from the outer race at the second operational speed range.