Shaft sealing device with floating seal member
US4641842A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Mar 26, 1986 |
| Grant date | Feb 10, 1987 |
| Priority date | — |
| Expiry date | Mar 26, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/441
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shaft sealing device comprises a rotation shaft passing through a casing. A rotation ring mechanism is affixed to the rotation shaft within the casing, with a mechanical seal member located within the casing, with a mechanical seal member located within the casing and cooperating with one side of the rotation ring mechansim. A non-rotatable, floating seal member is also located in the casing, and is liquid-tightly fitted onto the outer circumference of the rotation ring mechanism. One side of the floating seal member contacts an inner surface of the casing, so that a sealing chamber for lubrication liquid is formed within the casing, by the rotation ring mechanism, mechanical and floating seal members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.