US 12,247,583 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 Sep. 27, 2023, as Appl. No. 18/476,013.
Application 18/476,013 is a continuation of application No. 17/564,987, filed on Dec. 29, 2021, granted, now 11,795,976.
Prior Publication US 2024/0018976 A1, Jan. 18, 2024
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)] 9 Claims
OG exemplary drawing
 
1. An integrally geared centrifugal compressor system for compressing a fluid, the system comprising:
a gearbox defining an interior longitudinal cavity having a center axis;
a first pinion configured to be rotated by a bull gear about a first rotational axis;
a first eccentric cartridge configured to house a first bearing assembly through which a first rotor coupled to the first pinion extends to support rotation of the first rotor about the first rotational axis, the first eccentric cartridge configured to eccentrically arrange the first rotational axis relative to the center axis of the gearbox;
a second pinion configured to be rotated by the bull gear about a second rotational axis;
a second eccentric cartridge configured to house a second bearing assembly through which a second rotor coupled to the second pinion extends to support rotation of the second rotor about the second rotational axis, the second eccentric cartridge configured to eccentrically arrange the second rotational axis relative to the center axis of the gearbox, wherein the gearbox is configured to interchangeably receive each of (i) the first pinion and the first eccentric cartridge and (ii) the second pinion and the second eccentric cartridge, wherein the first rotational axis is eccentrically arranged relative to the second rotational axis.