US 11,988,250 B2
Vapor compression system and method of extending service life of same
Koman B. Nambiar, Frederick, MD (US); and Tyler A. Wolgemuth, Mount Wolf, PA (US)
Assigned to Tyco Fire & Security GmbH, Schaffhausen (CH)
Filed by Johnson Controls Tyco IP Holdings LLP, Milwaukee, WI (US)
Filed on Mar. 14, 2022, as Appl. No. 17/694,410.
Application 17/694,410 is a continuation of application No. 15/436,145, filed on Feb. 17, 2017, granted, now 11,274,705.
Claims priority of provisional application 62/297,513, filed on Feb. 19, 2016.
Prior Publication US 2022/0196075 A1, Jun. 23, 2022
Int. Cl. F16C 17/08 (2006.01); F04D 29/059 (2006.01); F16C 32/04 (2006.01); F16C 33/08 (2006.01); F16C 35/04 (2006.01); F16C 35/063 (2006.01)
CPC F16C 17/08 (2013.01) [F16C 33/08 (2013.01); F16C 35/063 (2013.01); F04D 29/059 (2013.01); F16C 32/0406 (2013.01); F16C 32/0442 (2013.01); F16C 35/042 (2013.01); F16C 2204/42 (2013.01); F16C 2362/52 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A vapor compression system, comprising:
a shaft configured to rotate about an axis;
a bearing configured to support the shaft during abnormal operation of the vapor compression system;
a sleeve disposed about the shaft and positioned radially between the shaft and the bearing relative to the axis, wherein the sleeve and the bearing are separated from one another by a gap during normal operation of the vapor compression system;
a first bearing stop positioned against a first shoulder of the shaft; and
a second bearing stop positioned against a second shoulder of the shaft, wherein the sleeve is in contact with the first bearing stop and the second bearing stop, wherein the first bearing stop and the second bearing stop are configured to transmit axial forces from the shaft to the bearing during abnormal operation of the vapor compression system, and wherein at least a portion of each of the sleeve, the first bearing stop, and the second bearing stop comprises a protective layer of material facing the bearing.