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US 12,188,355 B2Granted
Driveshaft assemblies and compressors including the same
AssigneeCopeland Corporation
InventorsKirill Michailovich Ignatiev, Mikhail A. Antimonov, Robert Christopher Stover
Life of this patent
Estimating the term…
Abstract
A driveshaft assembly for a compressor includes an unloader assembly and a driveshaft. The unloader assembly includes an unloader and a counterweight. The unloader assembly is rotationally supported by a bearing. The unloader includes a flank surface that is slidably engaged with a flank surface on the driveshaft.
Claims21
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.
4 more elements
A compressor comprising:
- a shell;
- a scroll assembly disposed within the shell, the scroll assembly comprising:
- a non-orbiting scroll;
- and
- an orbiting scroll;
- and
- 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 secondary surface and a flank 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 secondary surface and a flank 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.
11 more elements
A method of assembling a driveshaft assembly for rotating an orbiting scroll relative to a non-orbiting scroll:
- inserting a bearing assembly that defines a bearing opening, within an opening defined within a first hub;
- inserting an unloader of an unloader assembly within the bearing opening such that a counterweight of the unloader assembly is disposed outside of the bearing opening;
- and
- inserting a driveshaft within an unloader opening defined by the unloader assembly, wherein a flank surface of the driveshaft is in contact with a flank surface of the unloader, and wherein a secondary surface of the driveshaft is arranged in proximity to a secondary surface of the unloader.
1 more element
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 surrounds the driveshaft, wherein the unloader moves relative to the driveshaft when the driveshaft is rotating in a first speed range;
- and
- a counterweight connected to the unloader and extending radially outward relative to the unloader.
4 more elements
Dependencies are inferred from the claim text.