Vapor compression system and method of extending service life of same
US11988250B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2022 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Mar 14, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2362/52
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vapor compression system including a motor having a housing and a shaft having an axis, the shaft urgable into rotational movement by the motor for powering a system component. A primary bearing and a secondary bearing are positioned in the housing for rotatably supporting the shaft, the primary bearing rotatably supporting the shaft during normal system operation. A first bearing stop and a second bearing stop are positioned on opposite sides of the secondary bearing for transmitting axial forces generated along the shaft for reaction by the motor housing during abnormal system operation. At least a portion of corresponding surfaces of each of the first bearing stop and the second bearing stop facing the secondary bearing have a protective overlying layer of material applied thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.