Seal for a ring piston of a hydraulic clutch disconnecting device
US6035990A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 4, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Sep 4, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2300/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention concerns a disconnecting device for a motor vehicle friction clutch which contains a pressure housing (2) arranged concentrically to a gear box input shaft (3) and fastened to a gear box housing (4). A guiding sleeve (6) is arranged in the pressure housing (2) radially separated from the gear box input shaft (3) and from a longitudinal bore (5) in the pressure housing (2) on which a ring piston (7) is movably guided which axially delimits a pressure chamber (8). For sealing the ring piston (7), a seal (12) is provided which has sealing lips (13, 14) spread apart in a V-shape. In accordance with the invention, the sealing lips (13, 14) of the seal (12) have an asymmetrically configured cross sectional profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.