Sealing element for a rotatable part with a tractrix form
US7661883B2 · kind B2 · utility
4Cited by
17References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 7, 2007 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Mar 26, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C33/7809
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sealing element for rotatable parts is provided by the invention. To achieve low and uniform wear, automatic reshaping of the sealing surfaces for advancing wear, low friction forces, and long service life, the sealing element has sealing surfaces (4) and sealing counter surfaces (5), whose sealing effect is provided by the interaction of a sealing element (3, 11) constructed as a tractrix body with a correspondingly shaped sealing counter element (6, 13, 14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.