Seal ring
US11530749B2 · kind B2 · utility
12Cited by
39References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2019 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | Sep 4, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/441
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Provided is a seal ring configured so that stable lubrication performance can be provided across a wide range of rotation speed. A seal ring for sealing a clearance between a rotary shaft and a housing includes multiple static pressure grooves provided at a sliding surface of the seal ring and arranged in a circumferential direction, the static pressure grooves being opened on a sealed fluid side and closed on an outer diameter side, a circumferential length of each of the static pressure grooves being shorter than a radial length of each of the static pressure grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.