Bearing protector for axial shaft movement
US7905496B2 · kind B2 · utility
6Cited by
8References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2007 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Feb 20, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/925
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A seal device, which accommodates axial displacement between a housing and shaft of an item of rotating equipment, includes a stator which locates into the housing of a piece of rotating equipment. A first rotor locates on the shaft of the rotating equipment and a second rotor is rotationally coupled to the first rotor with the first rotor being permitted to axially float with respect to the second rotor. The device provides sealing integrity when the shaft is both idle and operational. The sealing device may be used, for instance, in a double ended centrifugal pump where shaft displacement occurs from thermal expansion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.