Hydraulic seal system
US5941534A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1995 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Oct 12, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/164
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic seal system includes a seal ring groove and a seal ring mounted in the seal ring groove. The seal ring and seal ring groove are rotatable relative to each other, and have sealing sides, respectively, which are put into pressure contact with each other by a sealing hydraulic pressure. The seal ring is made of a synthetic resin to have a fixed elasticity. The sealing side of the seal ring is formed into a convex curved surface with its radially central portion raised, so that when a hydraulic pressure is applied, the sealing side can be compressedly deformed to define a hydraulic pocket. Thus, the formation and retaining of an oil film at the pressure contact portions of the sealing sides is promoted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.