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US 11,959,477 B1Granted
Bearing and unloader assembly for compressors
AssigneeCopeland Corporation
InventorsKirill Michailovich Ignatiev, Robert Christopher Stover, Mikhail A. Antimonov
Life of this patent
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Abstract
A bearing system for a compressor including an unloader at least partially received within a recess of a driveshaft. The unloader includes an outer surface that is engaged with a bearing. An inner surface of the unloader is curved such that the unloader is pivotable relative to the driveshaft unload forces on bearing caused by deflection of the driveshaft.
Claims19
A compressor comprising:
- a shell;
- a driveshaft including a driveshaft body, an eccentric body, and a recess defined at least in part by a back surface;
- a non-orbiting scroll disposed within the shell;
- an orbiting scroll disposed within the shell, the eccentric body drivingly engaged with the orbiting scroll;
- a bearing housing fixed within the shell;
- a bearing supported by the bearing housing, the bearing axially spaced from the non-orbiting and orbiting scrolls;
- and
- an unloader at least partially received within the recess of the driveshaft, the unloader having inner and outer surfaces, the outer surface is engaged with the bearing, and wherein at least one of the back surface and the inner surface is curved and the unloader is pivotable within the recess relative to the driveshaft, wherein the outer surface of the unloader is curved and has a radius of curvature that is substantially the same as a radius of curvature of the driveshaft.
5 more elements
A bearing assembly comprising:
- a driveshaft including a driveshaft body, an eccentric body, and a recess defined at least in part by a back surface;
- a bearing housing;
- a bearing supported by the bearing housing;
- and
- an unloader at least partially received within the recess of the driveshaft, the unloader having inner and outer surfaces, the outer surface engaged with the bearing, and wherein at least one of the back surface and the inner surface is curved and the unloader is pivotable within the recess relative to the driveshaft, wherein the outer surface of the unloader is curved and has a radius of curvature that is substantially the same as a radius of curvature of the driveshaft.
2 more elements
A compressor system comprising:
- a compressor operable to compress a refrigerant, the compressor comprising:
- a shell;
- a driveshaft including a driveshaft body, an eccentric body, and a recess defined at least in part by a back surface;
- a non-orbiting scroll disposed within the shell;
- an orbiting scroll disposed within the shell, the eccentric body drivingly engaged with the orbiting scroll;
- a bearing housing fixed within the shell;
- a bearing supported by the bearing housing, the bearing axially spaced from the non-orbiting and orbiting scrolls;
- and
- an unloader at least partially received within the recess of the driveshaft, the unloader having inner and outer surfaces, the outer surface is engaged with the bearing, and wherein at least one of the back surface and the inner surface is curved and the unloader is pivotable within the recess relative to the driveshaft, wherein the outer surface of the unloader is curved and has a radius of curvature that is substantially the same as a radius of curvature of the driveshaft;
- a condenser downstream of the compressor;
- and
- an evaporator downstream of the condenser.
9 more elements
Dependencies are inferred from the claim text.