Invention Grant
- Patent Title: Refrigerant compressor with wear sleeve and lubricant blends for handling debris-laden fluids
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Application No.: US17804786Application Date: 2022-05-31
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Publication No.: US12044449B2Publication Date: 2024-07-23
- Inventor: Michael T. Siegersma , Daniel A. Strange , Russell T. Abbott , Todd W. Smith , Elyse M. Sorenson , Morgan Elizabeth Herried Leehey , Curtis E. Everson , Mohammad Akram
- Applicant: TRANE INTERNATIONAL INC.
- Applicant Address: US NC Davidson
- Assignee: TRANE INTERNATIONAL INC.
- Current Assignee: TRANE INTERNATIONAL INC.
- Current Assignee Address: US NC Davidson
- Agency: HSML P.C.
- Main IPC: F25B31/00
- IPC: F25B31/00 ; C10M101/00 ; C10M105/06 ; C10M105/38 ; C10M107/24 ; C10M111/04 ; C10M129/10 ; C10M129/18 ; C10M133/46 ; C10M137/04 ; C10M141/10 ; C10M169/04 ; F25B31/02 ; C10N30/02 ; C10N30/06 ; C10N30/10 ; C10N30/12 ; C10N40/30

Abstract:
A compressor including a housing, a shaft configured to be rotated relative to the housing to compress a refrigerant, a motor configured to drive the shaft, a lubrication system configured to supply lubricant to the compressor, and a bearing configured to support the shaft. The shaft includes a wear-resistant sleeve-like treatment on at least a portion of an outer surface of the shaft adjacent the bearing. The lubricant is a lubricant blend composition that includes two or more lubricants, the two or more lubricants including a first lubricant and a second lubricant. The first lubricant is present at a higher volume percentage than the second lubricant, and the first lubricant includes a higher viscosity than the second lubricant.
Public/Granted literature
- US20230384002A1 REFRIGERANT COMPRESSOR WITH WEAR SLEEVE AND LUBRICANT BLENDS FOR HANDLING DEBRIS-LADEN FLUIDS Public/Granted day:2023-11-30
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