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US 12,486,845 B2Granted
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.
Claims17
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 and a second surface arranged perpendicular to the 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, and the unloader is moveable within the recess relative to the back surface of the recess;
- and
- a retention ring configured to be received into a first channel formed on the outer surface of the unloader and a second channel formed on the driveshaft, wherein the retention ring retains the unloader at least partially within the recess of the driveshaft, wherein the retention ring is spaced from the bearing when the retention ring is disposed within the first and second channels.
7 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 and a second surface arranged perpendicular to the back surface;
- a bearing housing;
- a bearing supported by the bearing housing;
- an unloader at least partially received within the recess of the driveshaft, the unloader having inner and outer surfaces, and the unloader is moveable within the recess relative to the back surface of the recess;
- and
- a retention ring configured to be received into a first channel formed on the outer surface of the unloader and a second channel formed on the driveshaft, wherein the retention ring retains the unloader at least partially within the recess of the driveshaft, wherein the retention ring is spaced from the bearing when the retention ring is disposed within the first and second channels.
3 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 and a second surface arranged perpendicular to the 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;
- an unloader at least partially received within the recess of the driveshaft, the unloader having inner and outer surfaces, and the unloader is moveable within the recess relative to the back surface of the recess;
- a retention ring configured to be received into a first channel formed on the outer surface of the unloader and a second channel formed on the driveshaft, wherein the retention ring retains the unloader at least partially within the recess of the driveshaft, wherein the retention ring is spaced from the bearing when the retention ring is disposed within the first and second channels;
- a condenser downstream of the compressor;
- and
- an evaporator downstream of the condenser.
9 more elements
Dependencies are inferred from the claim text.