Seal device
US11085539B2 · kind B2 · utility
0Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2018 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | May 19, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/441
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sealing device includes a floating ring in a space between the outer circumference of a rotating shaft and the inner circumference of a housing, and a multi-layered cylindrical body including a plurality of elastically deformable cylindrical thin plates layered on top of each other provided between an outer peripheral surface of the floating ring and an inner peripheral surface of the housing, so as to impart a radial restoring force against the eccentricity of the rotating shaft to restore it to its center position, and a tangential damping force to reduce the whirling of the rotating shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.