Shaft seal device
US4222575A · kind A · utility
38Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1979 |
| Grant date | Sep 16, 1980 |
| Priority date | — |
| Expiry date | Mar 21, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02G2253/03
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A shaft sealing device using seal rings having a hook shaped portion defining an inner radial lip to engage and seal the shaft. The rings are positioned symmetrically with respect to a spacer to define a sealing liquid chamber between the shaft, the spacer and the lip portion. The spacer has liquid seal passages formed therein to introduce sealing liquid. The axial length of the lip portion is shorter than the axial hight of outer peripheral surface of the seal ring and the inner peripheral surface is tapered inwardly with respect to the axis of the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.