Positive clearance radial face seals
US4290613A · kind A · utility
14Cited by
2References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1979 |
| Grant date | Sep 22, 1981 |
| Priority date | — |
| Expiry date | Sep 20, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/928
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A positive clearance radial face seal characterized in that at least one of its two opposed sealing faces comprises a pressure-deflectable elastic or elastically loaded element which deflects, in steady state operating conditions, to provide a clearance between the sealing faces which converges in the radial direction towards the downstream zone of the seal, the deflection changing with variations in the operating conditions in a manner tending to restore the steady state clearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.