US 12,385,526 B2
Active magnetic bearing apparatus
Esa Heikki Matias Vikman, Espoo (FI); Fredrik Boxberg, Espoo (FI); Juha T. Saari, Espoo (FI); Petri J. Maki-Ontto, Espoo (FI); and Lauri Juhani Salmia, Espoo (FI)
Assigned to Ingersoll-Rand Industrial U.S., Inc., Davidson, NC (US)
Filed by Ingersoll-Rand Industrial U.S., Inc., Davidson, NC (US)
Filed on Jun. 24, 2024, as Appl. No. 18/751,796.
Application 18/751,796 is a continuation of application No. 18/115,138, filed on Feb. 28, 2023, granted, now 12,018,718.
Application 18/115,138 is a continuation of application No. 17/563,324, filed on Dec. 28, 2021, granted, now 11,592,060, issued on Feb. 28, 2023.
Application 17/563,324 is a continuation of application No. 16/748,343, filed on Jan. 21, 2020, granted, now 11,209,046, issued on Dec. 28, 2021.
Claims priority of application No. 19152744 (EP), filed on Jan. 21, 2019.
Prior Publication US 2024/0344559 A1, Oct. 17, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F16C 32/04 (2006.01); H02K 7/09 (2006.01); H02K 9/16 (2006.01); H02K 9/18 (2006.01); H02K 11/01 (2016.01); H02K 11/21 (2016.01)
CPC F16C 32/0485 (2013.01) [F16C 32/0474 (2013.01); H02K 7/09 (2013.01); H02K 9/16 (2013.01); H02K 9/18 (2013.01); H02K 11/0141 (2020.08); H02K 11/21 (2016.01)] 20 Claims
OG exemplary drawing
 
1. An active magnetic bearing apparatus for supporting a rotor of a rotary machine, the apparatus comprising:
an axial magnetic bearing unit for supporting an axial load of the rotor;
a radial magnetic bearing unit for supporting a radial load of the rotor; and
a fluid cooling channel for cooling the axial magnetic bearing unit and the radial magnetic bearing unit;
wherein the radial magnetic bearing unit is mounted directly to the axial magnetic bearing unit, and wherein the axial magnetic bearing unit is mounted to a support frame plate, the support frame plate configured to be removably connected to a housing of the rotary machine.