US 11,795,976 B2
Systems and methods for integrally geared centrifugal compressor to maintain rotor concentricity with differing pinion gear tooth counts
Dhruv Kumar, Buffalo, NY (US); Thomas Gerber, Buffalo, NY (US); Andrew Austin, Buffalo, NY (US); Chester Swiatek, Buffalo, NY (US); and Scott Ackerman, Lancaster, NY (US)
Assigned to INGERSOLL-RAND INDUSTRIAL U.S., INC., Davidson, NC (US)
Filed by Ingersoll-Rand Industrial U.S., Inc., Davidson, NC (US)
Filed on Dec. 29, 2021, as Appl. No. 17/564,987.
Prior Publication US 2023/0204048 A1, Jun. 29, 2023
Int. Cl. F04D 29/42 (2006.01); F04D 29/66 (2006.01); F04D 27/02 (2006.01)
CPC F04D 29/667 (2013.01) [F04D 29/4206 (2013.01); F04D 27/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An integrally geared centrifugal compressor system for compressing a fluid, the system comprising:
a pinion configured to be rotated by a bull gear about a rotational axis;
a rotor coupled to the pinion and configured to be rotated about the rotational axis; and
an eccentric cartridge configured to house a bearing assembly through which the rotor extends to support rotation of the rotor about the rotational axis, the eccentric cartridge having an outer surface and an inner surface, at least a portion of the outer surface configured to seat against an interior surface of a gearbox configured to house at least a portion of the pinion and the rotor, at least a portion of the inner surface configured to support the bearing assembly, wherein the inner surface is eccentric relative to the outer surface to align the rotational axis with a center axis of the bearing assembly.