US 12,188,355 B2
Driveshaft assemblies and compressors including the same
Kirill Michailovich Ignatiev, Oakwood, OH (US); Mikhail A. Antimonov, Beavercreek, OH (US); and Robert Christopher Stover, Versailles, OH (US)
Assigned to Copeland LP, Sidney, OH (US)
Filed by Copeland LP, Sidney, OH (US)
Filed on Feb. 27, 2023, as Appl. No. 18/175,147.
Prior Publication US 2024/0287904 A1, Aug. 29, 2024
Int. Cl. F04C 29/00 (2006.01); F01C 21/02 (2006.01); F04C 18/02 (2006.01); F04D 29/66 (2006.01); F16C 3/02 (2006.01); F16C 3/18 (2006.01); F16C 9/00 (2006.01)
CPC F01C 21/02 (2013.01) [F04C 18/0215 (2013.01); F04C 29/0028 (2013.01); F04C 29/0057 (2013.01); F04C 29/0071 (2013.01); F04C 29/0078 (2013.01); F16C 3/023 (2013.01); F16C 3/18 (2013.01); F16C 9/00 (2013.01); F04C 2240/30 (2013.01); F04C 2240/40 (2013.01); F04C 2240/56 (2013.01); F04C 2240/60 (2013.01); F04C 2240/807 (2013.01); F04D 29/66 (2013.01); F16C 2226/50 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A driveshaft assembly comprising:
a bearing including an inner bearing surface;
a driveshaft having a longitudinal axis and having an outer surface, the outer surface including a flank surface and a secondary surface; and
an unloader assembly comprising:
an unloader including an inner surface and an outer surface, the outer surface is rotationally supported with the bearing inner surface and the inner surface includes a flank surface and a secondary surface, wherein the flank surface is slidably engaged with the flank surface of the driveshaft along a direction that is perpendicular to the longitudinal axis of the driveshaft; and
a counterweight connected to the unloader and extending radially outward relative to the unloader.